Noha Mansour - Academia.edu (original) (raw)

Papers by Noha Mansour

Research paper thumbnail of Biochemical and Physiological Responses of Some Grape Rootstocks to Salt Stress

Egyptian Journal of Horticulture

U TILIZING grape rootstocks is considered an efficient method to enhance the resistance against b... more U TILIZING grape rootstocks is considered an efficient method to enhance the resistance against biotic and abiotic stresses. Therefore, a pot experiment was conducted during Two consecutive seasons 2020 and 2021.to evaluate the responses of 1-year-old rooted cuttings of commercially available grape rootstocks (SO4, Freedom, Ramsey, and Richter) planted in sandy soil, amended with compost; then irrigated with graduated levels of salt mixture solution (control, 1500, 3000, 4500, and 6000 ppm). The results obtained from biochemical and physiological measurements revealed that Ramsey rootstock outperformed the other rootstocks, significantly exhibiting the highest concentrations of nitrogen, potassium, magnesium, and proline in roots, while demonstrating the lowest sodium concentration in petioles. The results offer valuable insights on grape cultivation under salinity conditions with irrigation water concentration ranging from 1,500 to 3,000 ppm.

Research paper thumbnail of Improving Productivity of “Le-Conte” Pear Trees Grown in New Reclaimed Soils Using Natural Elements Mixture and Algae Extract

Egyptian Journal of Horticulture

Increasing limitations in agrochemical law regulations led to need for modern methods in plant nu... more Increasing limitations in agrochemical law regulations led to need for modern methods in plant nutrition and plant protection (Ronga et al., 2019). Nowadays, a great efforts are paid to find safe alternatives which are used to stimulate growth and improve yield without causing environmental pollution problems. New alternative is using Natural Elements Mixture (NEM) which included thirteen elements oxides

Research paper thumbnail of Improving Fruit Quality of Crimson Seedless by Ethephon and Abscisic Acid Foliar Applications Using Three Machine Types

Egyptian Journal of Horticulture

T HIS study was conducted in two successive seasons 2017 and 2018 on 'Crimson Seedless' vines bud... more T HIS study was conducted in two successive seasons 2017 and 2018 on 'Crimson Seedless' vines budded on Richter 110 rootstock at four years old, grown in a private orchard at Al Qattah, Giza Governorate, Egypt, to improving fruit quality, especially color. using three Spray machines (1-Electrostatic ESS 2-Cima 3-backpack sprayers) and six foliar applications of materials concentration (500ppm Ethephon, 1000ppm Ethephon, 2000ppm Ethephon, 500ppm Abscisic acid, 1000ppm Abscisic acid and 2000ppm Abscisic acid) at veraison. Fruit quality, especially TSS/acid ratio and Anthocyanin content were increased when spraying by ESS followed closely by Cima spray machines. 2000ppm of Abscisic acid gave the significant highest values of Anthocyanin content followed by 1000ppm ABA and 2000ppm Ethephon, while there was no significant differential effect of them on TSS/acid ratio. On the other hand, the firmness decreased when spraying by 2000ppm and 1000ppm from Ethephon and Abscisic acid. Therefore, it can be recommended to get the best color and TSS/acid ratio for berries of Crimson seedless grape should be spraying 1000ppm Abscisic acid or 2000ppm Ethephon at veraison by ESS or Cima spray machines.

Research paper thumbnail of ORIGINAL ARTICLES The Response of Bearing Navel Orange Trees to Some Sources and Rates of Potassium Fertilizers and Silicate Bacteria

This study was carried out through two successive seasons (2011 and 2012) in a private orange orc... more This study was carried out through two successive seasons (2011 and 2012) in a private orange orchard in Qalubia Governorate, Egypt on 40 years old Navel orange trees budded on sour orange-rootstock grown in a clay loam soil (Typic Torriorthents). Planting distance was 5 × 5 meters apart and flood irrigation was used by river Nile water. Under this orchard conditions no sources of potassium fertilizers were added from many years ago. In the present study ,potassium fertilizers were added at three rates (300, 450 and 600 g K 2 O /tree/ year) as potassium sulphate 48% K 2 O and K-feldspar, 10% K 2 O plus inoculation with Bacillus circulans KSB8 (silicate bacteria).This strain was isolated and identified by 16S rRNA gene sequence. It releases high amount of available K in broth medium supplemented with K-feldspar through the production of organic acids. As well as, it is able to solubilize phosphorus, produce auxins, cytokinin and siderophore which are known to stimulate the growth of ...

Research paper thumbnail of Promising Impacts of Humic Acid and Some Organic Fertilizers on Yield, Fruit Quality and Leaf Mineral Content of Wonderful Pomegranate (Punica granatum L.) Trees

Egyptian Journal of Horticulture, 2018

T HE AIMS of this research were to minimizing mineral nitrogen fertilizers and evaluate the effic... more T HE AIMS of this research were to minimizing mineral nitrogen fertilizers and evaluate the efficiency of some organic fertilizers individually or combined with humic acid on yield, fruit quality and leaf mineral content of "Wonderful" pomegranate trees. This research was carried out through three successive seasons (2015, 2016 and 2017) in Hegazi private orchard located at 57 kilometer from Cairo on the desert road to Alexandria, Egypt on eight years old pomegranate trees "Wonderful" cv. The experiment consists of two levels of humic acid (0 and 50 g/tree/season) and five nitrogen fertilizers form [chicken manure, compost, cattle manure, mineral nitrogen as experiment control 40 kg actual N/fed and mineral nitrogen as orchard control 80kg actual N/fed] .The experiment was designed in factorial experiment in a randomized complete block design. All organic nitrogen sources applied at a rate of 40kg actual N/fed. It could be concluded that, humic acid addition affected lack significant on yield, fruit physical and chemical properties and leaf nutrient content. Generally chicken manure and compost gave the highest values of most characters followed closely by two mineral treatments. When compared between two mineral N treatments the data revealed that 40kg N/fed /year was sufficient to give the highest values of most studied parameters and was equaled by 80kg N/fed /year. Regarding the combination between humic acid and nitrogen fertilizers the data showed that chicken manure and compost without addition of humic acid gave the highest values of yield and fruit characters followed closely by two mineral treatments. Thus it could be safely recommended by fertilizing with (40kg N/fed /year) instead of (80kg N/fed /year) on the other hand, fertilizing by chicken manure or compost (40 g N/tree/year) with or without humic addition (50 g /tree/year) improved yield ,fruit physical & chemical properties and reduce environmental pollution.

Research paper thumbnail of Relative Comparison Salinity Stress Tolerance for “Manfaluty” and “Wonderful” Pomegranate Cultivar Transplants

Egyptian Journal of Horticulture, 2020

T HE goal was to evaluate the response of pomegranate cultivar transplants "Manfaluty" and "Wonde... more T HE goal was to evaluate the response of pomegranate cultivar transplants "Manfaluty" and "Wonderful" for salinity stress. A pot investigation was conducted during (2016 and 2017) seasons in a glasshouse, Faculty of Agriculture, Ain Shams Univ., Shoubra El-Kheima, Egypt. Pots were arranged in a randomized complete design with two factors, the first one was pomegranate cultivars which included two cultivars namely (Manfaluty and Wonderful) and the second factor was NaCl levels whereas, transplants were irrigated with five levels of water salinity (0, 20, 40, 60, and 80 mM NaCl). It could be summarized results in some main points:-Both pomegranate cultivars were moderately resistant to salinity up to 40 Mm NaCl with slight growth reduction.-More increase in salinity level up to 60 and 80 mM NaCl reduction growth around 50-70% compared with untreated transplants. Generally, "Manfaluty" had a slightly higher reduction in growth than "Wonderful".-Increasing salinity levels caused a significant reduction in leaf K content otherwise Na was accumulated in the leaves of both 'pomegranate cultivars.-Proline leaves content, increased gradually by the increase in salinity levels up to (60 mM NaCl), and the highest significant values of proline content were obtained when combing (60mM NaCl) with "Wonderful". So it could be concluded that, increasing salinity level more than 40 mM NaCl will inhibit pomegranate growth and make an imbalance of nutrient status in pomegranate transplants with slight differences between the response of two cultivars.

Research paper thumbnail of A Comparison of Some Traditional and Nontraditional Organic Fertilizers for Murcott Tangerine Trees Production and Fruit Quality

Egyptian Journal of Horticulture, 2021

of some types and levels of nitrogen on vegetative growth, mineral content, yield and fruit quali... more of some types and levels of nitrogen on vegetative growth, mineral content, yield and fruit quality of 5 years old Murcott tangerine trees (Citrus reticulate, Blanco.) budded on Volkamer lemon rootstock and cultivated in "Hegazi orchard" located in Cairo to Alexandria desert road, Egypt at 2.5 × 5m apart. The experiment contain two factorsThe first factor was added nitrogen at two levels i.e., 90 and 120 kg actual N/fed while the second factor was added 5 types of nitrogen i.e., 100% Mineral nitrogen fertilizer (MNF), 50% Commercial plant residues compost (CRC) +50% (MNF), 50% Bagasse compost (BC) +50% (MNF), 50% Waterhyacinth compost (WHC) +50% (MNF) and 50% Chicken manure (CHM) +50% (MNF). A great increase in fruits number, fruit weight, yield, pulp weight, juice weight, pulp: fruit %, juice: pulp %, ascorbic acid and (N, K, Zn leaf content) were recorded by120 Kg actual N/fed. Generally, 50% WHC + % 50 MNF and 50 % CHM + %50 MNF gave the highest values of most characters followed closely by control. Therefore, it could be recommended by fertilizing young Murcott trees with (120 Kg actual N/fed) added as (50%WHC + %50 MNF) or (50 % CHM + %50 MNF) enhanced yield, fruit quality and it is an effective method for get rid of Water hyacinth weed by easier way.

Research paper thumbnail of Improving Yield, Fruit Quality and Leaf Mineral Content of Hayany Date Palm By the Application of Olive Pomance and Mineral Fertilization

Alexandria Science Exchange Journal: An International Quarterly Journal of Science Agricultural Environments, Dec 30, 2012

The present investigation was carried out during 2010 and 2011 seasons on Hayany date palm cultiv... more The present investigation was carried out during 2010 and 2011 seasons on Hayany date palm cultivar grown at El-Arish, North Sinai Governorate, Egypt, and depended on rainfall for irrigation, to study the effect of using olive pomace alone (as organic fertilizer) or in combination with nitrogen, phosphorus and potassium fertilizers on yield, fruit quality and some minerals content in leaves. The results could be summarized as follows. Fertilizing with 25 Kg olive pomace combined with N or NP or NK per palm tended to increase N content in pinnae as compared with other treatments. K content affected with the fertilization treatments, NK , 25 Kg olive pomace + NK and control treatments gave the highest of values leaf K content in both seasons. Moreover, P, Mg and Na content in pinnae were not significantly affected by different fertilization treatments including the control in both seasons. However Fe, Zn and Mn percentages were increased by adding olive pomace either alone or combined with mineral nutrients compared to other treatments. Concerning Ca content, no consistent trend was found between different treatments including the control. Moreover, adding olive pomace combined with NP and NK increased total chlorophyll in pinnae. As for the fruit chemical characteristics, no significant differences in TSS content in fruits were detected between different treatments including the control except treatment N which gave the lowest value. Regarding fruit total sugars content the application of olive pomace alone or combined with the minerals increased fruit total sugars content, as compared to mineral fertilization. Fruit tannins were significantly higher when palms were fertilized with olive pomace alone as compared to other treatments. Adding olive pomace combined with minerals (N, NP and NK) significantly increased yield / palm than that of the control. Fertilizing with 25 Kg olive pomace combined with NK significantly increased the average fruit and pulp weight, fruit length and diameter as compared with the control. No significant differences were found between different treatments in seed weight. According to the conditions of this experiment, it is recommended to fertilize Hayany date palm with 25 Kg olive pomace combined with NK which gave a reasonable yield with high fruit quality.

Research paper thumbnail of Effect of Spraying with some Antioxidants on Growth, Yield, Fruit Quality and Nutritional Status of Navel Orange Trees

Arab Universities Journal of Agricultural Sciences, Sep 1, 2019

This study was carried out through two consecutive seasons 2016 and 2017 to investigate the effec... more This study was carried out through two consecutive seasons 2016 and 2017 to investigate the effect of spraying with some antioxidants on vegetative growth, yield, fruit quality and nutritional status of twelve years old 'Navel orange᾿ trees grafted on sour orange rootstock and grown in a private orange orchard in Qalubia Governorate, Egypt cultivated in a silty clay loam soil. This experiment involved three antioxidant materials named (salicylic acid, citric acid and folic acid) and each one spraying by three levels of each of with (250, 500 and 1000 ppm) from each salicylic, citric and folic acid plus control treatment so the experiment included ten treatments. Selected trees were sprayed three times in March, in May in July by aqueous solution of salicylic acid, citric acid and folic acid until the point of runoff. The highest values of vegetative growth were obtained by spraying by 500 ppm salicylic acid, 1000 ppm citric acid and 500 ppm folic acid. Regarding to yield, results pointed out that the foliar spraying with 500 ppm salicylic acid, 500 ppm citric acid and 250 ppm folic acid gave the highest values of yield. Treatments of 500 ppm salicylic acid, 250 ppm citric acid and 250 ppm folic acid gave the highest values of physical and chemical fruit properties. In respect to nutrients content, the highest values of macronutrients were obtained by spraying of 250 ppm folic acid, while that spraying by 1000 ppm salicylic acid and 250 ppm folic acid gave the highest values of micronutrients. Therefore, using treatment 500 ppm salicylic acid may be recommended from economical point of view and as good treatment for enhancing Navel orange growth, yield, fruit quality and nutritional status especially under old citrus orchards.

Research paper thumbnail of Evaluation Efficacy of Some Combinations of Organic Fertilizers on Productivity, Fruit Quality and Nutritional Status of Wonderful Pomegranate

Egyptian Journal of Horticulture, 2019

T O EVALUATE efficacy of fertilizing with different combinations of organic fertilizers on yield,... more T O EVALUATE efficacy of fertilizing with different combinations of organic fertilizers on yield, fruit quality and nutritional status of "Wonderful" pomegranate trees, a field experiment was carried out in "Hegazi farm" located in Cairo to Alexandria desert road, Egypt. during three growing seasons 2016, 2017 and 2018 on nine years old pomegranate trees cv. 'Wonderful' growing in sandy loam soil under 62% shading. Nitrogen requirements were added from different combinations of commercial organic fertilizers such: Compost (COM), Chicken Manure (CHM), Cattle Manure (CAM) and Mineral Fertilizer (MF) by the rate 40 kg actual N fed-1 with or without humic acid addition. The experiment consists of ten treatments spread in a randomized complete block design with five replicates. Fertilizing with (50% (CHM)+ 50% (COM)), (50% (COM) + 50% (CAM) and (33.3% (CHM) + 33.3% COM) + 33.3% (CAM) + humic) enhanced vegetative growth, yield. Fertilizing with (50% (CHM) + 50% (COM) + humic) and (33.3% (CHM) +33.3% (COM) +33.3% (CAM) + humic) improved fruit physical properties like (arils weight, juice weight and juice volume). Fertilizing with, (50% (COM) + 50% (CAM) + humic) gave the highest content of TSS%, TSS/acid ratio & ascorbic acid and least content of acidity. So it could be recommended by, fertilizing "Wonderful" pomegranate trees by one of these treatments (50% CHM +50% COM + humic), (50% COM +50%CAM+ humic) and (33.3% CHM+33.3% COM+33.3% CAM +humic) by the rate of 40 kg actual N fed-1 to improve yield, fruit quality and nutritional status.

Research paper thumbnail of Effect of Spraying Washington Navel Orange Trees with Selenium on Vegetative Growth, Productivity and Fruit Quality

Arab Universities Journal of Agricultural Sciences, 2019

This study was carried out during two successive seasons, 2012 and 2013 in a private orchard in B... more This study was carried out during two successive seasons, 2012 and 2013 in a private orchard in Barshom vallage located at El-Kalubia Governorate Egypt. Washington Navel Orange trees (Citrus Sinensis) budded on sour orange rootstock (Citrus aurantium, L.) were 7-years-old and planted at 5 x 5 meters under basin irrigation system. This investigation aimed to study the effect of selenium (Se) levels (0, 20, 40, 80 and 160 ppm) as foliar spray on growth, yield, fruit quality, leaf mineral content and enzymes activity of Washington Navel orange trees. The obtained data showed that, selenium had a significant promotive effect on growth, yield, fruit quality, leaf mineral content and enzymes activity of Washington Navel orange trees. Results indicated that treatment of Se at 40 ppm gave the highest significant results, whereas, treatment 160 ppm gave the highest fruit selenium content.

Research paper thumbnail of Response of Manzanillo olive transplants to different nitrogen and cobalt applications

Journal of Plant Nutrition, 2014

The aim of this work was to study the effect of different levels of nitrogen and molybdenum on ve... more The aim of this work was to study the effect of different levels of nitrogen and molybdenum on vegetative growth and mineral content of Manzanillo olive transplants. A pot experiment was carried out during two successive seasons of 2011 and 2012 under a glass house of the Faculty of Agriculture, Ain Shams University at Shoubra El-Kheima, Cairo, Egypt on Manzanillo olive transplants. The experiment included three nitrogen levels (N =25, N =50 and N =75g N/pot/year) and four levels of molybdenum (M =zero, M =10, M =20 1 2 3 1 2 3 and M =30 ppm Mo).Thus the experiment was laid out in factorial experiment in complete randomize design. 4 Results showed that, N level (50 g N/pot/year) gave the highest significant values in all vegetative growth 2 characters. On the other hand, it was gradually increased in vegetative growth characters by increasing molybdenum level up to 20 ppm or 30 ppm. The combination between nitrogen and molybdenum levels, the best treatments were (N x M) and (N x M) which gave the highest values of most vegetative growth characters. 2 3 2 4 Regarding leaf nutrient content, results pointed out that, level N gave the highest values of N, P, K and Fe 2 content. With respect to molybdenum levels, in most cases levels M or M (20 or 30 ppm Mo) gave the highest 3 4 values especially for N, P, K, Fe and Mo. Regarding the interaction it could be concluded that, combining nitrogen with molybdenum increased macro-and micronutrients content of Manzanillo olive transplants.

Research paper thumbnail of Fertilizing Young Navel Orange Trees with Sulfur and Wood Ash as a Source of Sustainable Agriculture

This study was carried out during two successive seasons 2012 and 2013 to investigate the effect ... more This study was carried out during two successive seasons 2012 and 2013 to investigate the effect of sulfur & wood ash and their combination on soil pH & EC, vegetative growth and leaf mineral content of the four years old Navel orange trees budded on sour orange rootstock grown in a private orange orchard in Qalubia Governorate Egypt on clay loam soil. In order to define the suitable wood ash and sulfur combination addition at the first few years of tree planting in the orchard which induce great tree growth and optimum leaf mineral content. The study was involved two levels of sulfur (S = 0 and S =500 g tree/year) and five levels of 12 wood ash (W = 0, W = 250, W =500, W =1000 and W =2000 g/tree/year). It could be concluded that soil pH 12 3 4 5 and Ec values were increased by increasing wood ash level. So, it must be mixed with other compound decreased soil pH especially under our soil condition in Egypt. May be sulfur is good source for this purpose. Vegetative growth of Navel or...

Research paper thumbnail of Renal Outcomes Associated with the Use of Non-Insulin Antidiabetic Pharmacotherapy: A Review of Current Evidence and Recommendations

International Journal of General Medicine, 2020

Background: This study aims to discuss, summarize and compare the renal outcomes associated with ... more Background: This study aims to discuss, summarize and compare the renal outcomes associated with non-insulin antidiabetic (AD) pharmacotherapy prescribed for patients with type 2 diabetes mellitus (T2DM). Methods: A systematic search using predefined search terms in three scholarly databases, ScienceDirect, Google Scholar, and PubMed, was conducted. Original research articles published in the English language between 2012 and 2020 that reported renal outcomes associated with the use of non-insulin AD pharmacotherapy were eligible for inclusion. Review articles, meta-analysis studies, and conference proceedings were excluded. A studyspecific data extraction form was designed to extract the author's name, country, publication year, study design, study population, objectives, key findings, and conclusions. A narrative review of the key findings that focused on renal outcomes and renal safety issues was conducted. Results: Of the 18,872 results identified through the initial search, a total of 32 articles were included in this review. Of these, 18 of the included articles reported the renal outcomes of newer antidiabetic medications, eg, SGLT2 inhibitors and GLP-1 agonists. Eight studies focussed on the well-established antidiabetic medications, eg, metformin and sulphonylureas. The review reported three main types of the clinical impact of the prescribed AD on the renal outcomes: "renoprotective effects", "no additional risk" and "associated with a decline in renal parameters". Seventeen studies reported the renoprotective effects of AD, including SGLT2i studies (n=8), GLP1 studies (n=6), and DPP4i studies (n=3). The reported renoprotective effects included slowing down the GFR decline, improving albuminuria, and reducing renal adverse events. The "no additional risk" impact was reported in eight studies, including DPP4i studies (n=3), two SGLT2i studies (n=2), metformin studies (n=2), and one study involving pioglitazone. Furthermore, seven studies highlighted the "associated with a decline in renal parameters" effect. Of these, three involved SGLT2i, two with metformin, and one for each DPP4i and sulphonylurea. Conclusion: More than half of the studies included in this review supported the renoprotective effects associated with the use of AD medications, particularly GLP-1A, SGLT2i, and some of the DPP4i. Further studies involving patients with various stages of chronic kidney disease (CKD) are required to compare AD medications' renal effects, particularly the newer agents.

Research paper thumbnail of Efficacy of Zinc Foliar Application from Different Sources on Productivity and Fruit Quality of Wonderful Pomegranate trees

Arab Universities Journal of Agricultural Sciences, 2020

Nanoparticles (NPs), especially from micronutrients, are recently motivated for replacing their c... more Nanoparticles (NPs), especially from micronutrients, are recently motivated for replacing their common mineral counterparts. To evaluate their comparative efficacy, this investigation was conducted to estimate the impact of foliar application of zinc through different sources on productivity, fruit quality and improve marketable fruit of "Wonderful" pomegranate trees. The field experiment was performed during two seasons (2017 and 2018) on sevenyear old pomegranate trees "Wonderful" cv., cultivated in a private "Hegazi" farm located at 57 km. from Cairo on the road to Alex., Egypt. Four sources of zinc named "Zinc Sulphate, Zinc mannitol complex, Bio-Nano zinc (Bio Zn NPs) and Zinc Oxide nanoparticle (ZnO NPs) with four rates from each other were sprayed twice (the first before one week from full bloom and the second after a month from the first). So the experiment included seventeen treatments in a sample study spread in a randomized complete block design by five replicates. Results explicated that the greatest significant values of fruit set% were recorded by Bio Nano Zinc (Bio Zn NPs) treatments especially (400 ppm Bio-Nano Zinc (Bio Zn NPs)). Spraying with (3000, 4000 ppm Zn mannitol complex) and (300, 400 ppm Bio-Nano Zinc (Bio Zn NPs)) showed significantly the greatest values of productivity, improves marketable fruits and fruit quality of "Wonderful" pomegranate trees. So it could be recommended by spraying "Wonderful" pomegranate trees by 3000 ppm Zinc mannitol complex or 300 ppm Bio-Nano zinc (Bio Zn NPs). Another important point is that the application of Bio Zn NPs fertilizer at around 10% from the commercial dose of zinc sulphate resulted in the same results without any change in the productivity, further researches are needed to study a further low level of Zinc Oxide nanoparticle (ZnO NPs) below (100 ppm Zinc Oxide nanoparticle (ZnO NPs)) which may be improving yield and fruit quality.

Research paper thumbnail of البحث الاول

HE AIMS of this research were to minimizing mineral nitrogen fertilizers and evaluate the efficie... more HE AIMS of this research were to minimizing mineral nitrogen fertilizers and evaluate the efficiency of some organic fertilizers individually or combined with humic acid on yield, fruit quality and leaf mineral content of "Wonderful" pomegranate trees. This research was carried out through three successive seasons (2015, 2016 and 2017) in Hegazi private orchard located at 57 kilometer from Cairo on the desert road to Alexandria, Egypt on eight years old pomegranate trees "Wonderful" cv. The experiment consists of two levels of humic acid (0 and 50 g/tree/season) and five nitrogen fertilizers form [chicken manure, compost, cattle manure, mineral nitrogen as experiment control 40 kg actual N/fed and mineral nitrogen as orchard control 80kg actual N/fed] .The experiment was designed in factorial experiment in a randomized complete block design. All organic nitrogen sources applied at a rate of 40kg actual N/fed. It could be concluded that, humic acid addition affected lack significant on yield, fruit physical and chemical properties and leaf nutrient content. Generally chicken manure and compost gave the highest values of most characters followed closely by two mineral treatments. When compared between two mineral N treatments the data revealed that 40kg N/fed /year was sufficient to give the highest values of most studied parameters and was equaled by 80kg N/fed /year. Regarding the combination between humic acid and nitrogen fertilizers the data showed that chicken manure and compost without addition of humic acid gave the highest values of yield and fruit characters followed closely by two mineral treatments. Thus it could be safely recommended by fertilizing with (40kg N/fed /year) instead of (80kg N/fed /year) on the other hand, fertilizing by chicken manure or compost (40 g N/tree/year) with or without humic addition (50 g /tree/year) improved yield ,fruit physical & chemical properties and reduce environmental pollution.

Research paper thumbnail of Biochemical and Physiological Responses of Some Grape Rootstocks to Salt Stress

Egyptian Journal of Horticulture

U TILIZING grape rootstocks is considered an efficient method to enhance the resistance against b... more U TILIZING grape rootstocks is considered an efficient method to enhance the resistance against biotic and abiotic stresses. Therefore, a pot experiment was conducted during Two consecutive seasons 2020 and 2021.to evaluate the responses of 1-year-old rooted cuttings of commercially available grape rootstocks (SO4, Freedom, Ramsey, and Richter) planted in sandy soil, amended with compost; then irrigated with graduated levels of salt mixture solution (control, 1500, 3000, 4500, and 6000 ppm). The results obtained from biochemical and physiological measurements revealed that Ramsey rootstock outperformed the other rootstocks, significantly exhibiting the highest concentrations of nitrogen, potassium, magnesium, and proline in roots, while demonstrating the lowest sodium concentration in petioles. The results offer valuable insights on grape cultivation under salinity conditions with irrigation water concentration ranging from 1,500 to 3,000 ppm.

Research paper thumbnail of Improving Productivity of “Le-Conte” Pear Trees Grown in New Reclaimed Soils Using Natural Elements Mixture and Algae Extract

Egyptian Journal of Horticulture

Increasing limitations in agrochemical law regulations led to need for modern methods in plant nu... more Increasing limitations in agrochemical law regulations led to need for modern methods in plant nutrition and plant protection (Ronga et al., 2019). Nowadays, a great efforts are paid to find safe alternatives which are used to stimulate growth and improve yield without causing environmental pollution problems. New alternative is using Natural Elements Mixture (NEM) which included thirteen elements oxides

Research paper thumbnail of Improving Fruit Quality of Crimson Seedless by Ethephon and Abscisic Acid Foliar Applications Using Three Machine Types

Egyptian Journal of Horticulture

T HIS study was conducted in two successive seasons 2017 and 2018 on 'Crimson Seedless' vines bud... more T HIS study was conducted in two successive seasons 2017 and 2018 on 'Crimson Seedless' vines budded on Richter 110 rootstock at four years old, grown in a private orchard at Al Qattah, Giza Governorate, Egypt, to improving fruit quality, especially color. using three Spray machines (1-Electrostatic ESS 2-Cima 3-backpack sprayers) and six foliar applications of materials concentration (500ppm Ethephon, 1000ppm Ethephon, 2000ppm Ethephon, 500ppm Abscisic acid, 1000ppm Abscisic acid and 2000ppm Abscisic acid) at veraison. Fruit quality, especially TSS/acid ratio and Anthocyanin content were increased when spraying by ESS followed closely by Cima spray machines. 2000ppm of Abscisic acid gave the significant highest values of Anthocyanin content followed by 1000ppm ABA and 2000ppm Ethephon, while there was no significant differential effect of them on TSS/acid ratio. On the other hand, the firmness decreased when spraying by 2000ppm and 1000ppm from Ethephon and Abscisic acid. Therefore, it can be recommended to get the best color and TSS/acid ratio for berries of Crimson seedless grape should be spraying 1000ppm Abscisic acid or 2000ppm Ethephon at veraison by ESS or Cima spray machines.

Research paper thumbnail of ORIGINAL ARTICLES The Response of Bearing Navel Orange Trees to Some Sources and Rates of Potassium Fertilizers and Silicate Bacteria

This study was carried out through two successive seasons (2011 and 2012) in a private orange orc... more This study was carried out through two successive seasons (2011 and 2012) in a private orange orchard in Qalubia Governorate, Egypt on 40 years old Navel orange trees budded on sour orange-rootstock grown in a clay loam soil (Typic Torriorthents). Planting distance was 5 × 5 meters apart and flood irrigation was used by river Nile water. Under this orchard conditions no sources of potassium fertilizers were added from many years ago. In the present study ,potassium fertilizers were added at three rates (300, 450 and 600 g K 2 O /tree/ year) as potassium sulphate 48% K 2 O and K-feldspar, 10% K 2 O plus inoculation with Bacillus circulans KSB8 (silicate bacteria).This strain was isolated and identified by 16S rRNA gene sequence. It releases high amount of available K in broth medium supplemented with K-feldspar through the production of organic acids. As well as, it is able to solubilize phosphorus, produce auxins, cytokinin and siderophore which are known to stimulate the growth of ...

Research paper thumbnail of Promising Impacts of Humic Acid and Some Organic Fertilizers on Yield, Fruit Quality and Leaf Mineral Content of Wonderful Pomegranate (Punica granatum L.) Trees

Egyptian Journal of Horticulture, 2018

T HE AIMS of this research were to minimizing mineral nitrogen fertilizers and evaluate the effic... more T HE AIMS of this research were to minimizing mineral nitrogen fertilizers and evaluate the efficiency of some organic fertilizers individually or combined with humic acid on yield, fruit quality and leaf mineral content of "Wonderful" pomegranate trees. This research was carried out through three successive seasons (2015, 2016 and 2017) in Hegazi private orchard located at 57 kilometer from Cairo on the desert road to Alexandria, Egypt on eight years old pomegranate trees "Wonderful" cv. The experiment consists of two levels of humic acid (0 and 50 g/tree/season) and five nitrogen fertilizers form [chicken manure, compost, cattle manure, mineral nitrogen as experiment control 40 kg actual N/fed and mineral nitrogen as orchard control 80kg actual N/fed] .The experiment was designed in factorial experiment in a randomized complete block design. All organic nitrogen sources applied at a rate of 40kg actual N/fed. It could be concluded that, humic acid addition affected lack significant on yield, fruit physical and chemical properties and leaf nutrient content. Generally chicken manure and compost gave the highest values of most characters followed closely by two mineral treatments. When compared between two mineral N treatments the data revealed that 40kg N/fed /year was sufficient to give the highest values of most studied parameters and was equaled by 80kg N/fed /year. Regarding the combination between humic acid and nitrogen fertilizers the data showed that chicken manure and compost without addition of humic acid gave the highest values of yield and fruit characters followed closely by two mineral treatments. Thus it could be safely recommended by fertilizing with (40kg N/fed /year) instead of (80kg N/fed /year) on the other hand, fertilizing by chicken manure or compost (40 g N/tree/year) with or without humic addition (50 g /tree/year) improved yield ,fruit physical & chemical properties and reduce environmental pollution.

Research paper thumbnail of Relative Comparison Salinity Stress Tolerance for “Manfaluty” and “Wonderful” Pomegranate Cultivar Transplants

Egyptian Journal of Horticulture, 2020

T HE goal was to evaluate the response of pomegranate cultivar transplants "Manfaluty" and "Wonde... more T HE goal was to evaluate the response of pomegranate cultivar transplants "Manfaluty" and "Wonderful" for salinity stress. A pot investigation was conducted during (2016 and 2017) seasons in a glasshouse, Faculty of Agriculture, Ain Shams Univ., Shoubra El-Kheima, Egypt. Pots were arranged in a randomized complete design with two factors, the first one was pomegranate cultivars which included two cultivars namely (Manfaluty and Wonderful) and the second factor was NaCl levels whereas, transplants were irrigated with five levels of water salinity (0, 20, 40, 60, and 80 mM NaCl). It could be summarized results in some main points:-Both pomegranate cultivars were moderately resistant to salinity up to 40 Mm NaCl with slight growth reduction.-More increase in salinity level up to 60 and 80 mM NaCl reduction growth around 50-70% compared with untreated transplants. Generally, "Manfaluty" had a slightly higher reduction in growth than "Wonderful".-Increasing salinity levels caused a significant reduction in leaf K content otherwise Na was accumulated in the leaves of both 'pomegranate cultivars.-Proline leaves content, increased gradually by the increase in salinity levels up to (60 mM NaCl), and the highest significant values of proline content were obtained when combing (60mM NaCl) with "Wonderful". So it could be concluded that, increasing salinity level more than 40 mM NaCl will inhibit pomegranate growth and make an imbalance of nutrient status in pomegranate transplants with slight differences between the response of two cultivars.

Research paper thumbnail of A Comparison of Some Traditional and Nontraditional Organic Fertilizers for Murcott Tangerine Trees Production and Fruit Quality

Egyptian Journal of Horticulture, 2021

of some types and levels of nitrogen on vegetative growth, mineral content, yield and fruit quali... more of some types and levels of nitrogen on vegetative growth, mineral content, yield and fruit quality of 5 years old Murcott tangerine trees (Citrus reticulate, Blanco.) budded on Volkamer lemon rootstock and cultivated in "Hegazi orchard" located in Cairo to Alexandria desert road, Egypt at 2.5 × 5m apart. The experiment contain two factorsThe first factor was added nitrogen at two levels i.e., 90 and 120 kg actual N/fed while the second factor was added 5 types of nitrogen i.e., 100% Mineral nitrogen fertilizer (MNF), 50% Commercial plant residues compost (CRC) +50% (MNF), 50% Bagasse compost (BC) +50% (MNF), 50% Waterhyacinth compost (WHC) +50% (MNF) and 50% Chicken manure (CHM) +50% (MNF). A great increase in fruits number, fruit weight, yield, pulp weight, juice weight, pulp: fruit %, juice: pulp %, ascorbic acid and (N, K, Zn leaf content) were recorded by120 Kg actual N/fed. Generally, 50% WHC + % 50 MNF and 50 % CHM + %50 MNF gave the highest values of most characters followed closely by control. Therefore, it could be recommended by fertilizing young Murcott trees with (120 Kg actual N/fed) added as (50%WHC + %50 MNF) or (50 % CHM + %50 MNF) enhanced yield, fruit quality and it is an effective method for get rid of Water hyacinth weed by easier way.

Research paper thumbnail of Improving Yield, Fruit Quality and Leaf Mineral Content of Hayany Date Palm By the Application of Olive Pomance and Mineral Fertilization

Alexandria Science Exchange Journal: An International Quarterly Journal of Science Agricultural Environments, Dec 30, 2012

The present investigation was carried out during 2010 and 2011 seasons on Hayany date palm cultiv... more The present investigation was carried out during 2010 and 2011 seasons on Hayany date palm cultivar grown at El-Arish, North Sinai Governorate, Egypt, and depended on rainfall for irrigation, to study the effect of using olive pomace alone (as organic fertilizer) or in combination with nitrogen, phosphorus and potassium fertilizers on yield, fruit quality and some minerals content in leaves. The results could be summarized as follows. Fertilizing with 25 Kg olive pomace combined with N or NP or NK per palm tended to increase N content in pinnae as compared with other treatments. K content affected with the fertilization treatments, NK , 25 Kg olive pomace + NK and control treatments gave the highest of values leaf K content in both seasons. Moreover, P, Mg and Na content in pinnae were not significantly affected by different fertilization treatments including the control in both seasons. However Fe, Zn and Mn percentages were increased by adding olive pomace either alone or combined with mineral nutrients compared to other treatments. Concerning Ca content, no consistent trend was found between different treatments including the control. Moreover, adding olive pomace combined with NP and NK increased total chlorophyll in pinnae. As for the fruit chemical characteristics, no significant differences in TSS content in fruits were detected between different treatments including the control except treatment N which gave the lowest value. Regarding fruit total sugars content the application of olive pomace alone or combined with the minerals increased fruit total sugars content, as compared to mineral fertilization. Fruit tannins were significantly higher when palms were fertilized with olive pomace alone as compared to other treatments. Adding olive pomace combined with minerals (N, NP and NK) significantly increased yield / palm than that of the control. Fertilizing with 25 Kg olive pomace combined with NK significantly increased the average fruit and pulp weight, fruit length and diameter as compared with the control. No significant differences were found between different treatments in seed weight. According to the conditions of this experiment, it is recommended to fertilize Hayany date palm with 25 Kg olive pomace combined with NK which gave a reasonable yield with high fruit quality.

Research paper thumbnail of Effect of Spraying with some Antioxidants on Growth, Yield, Fruit Quality and Nutritional Status of Navel Orange Trees

Arab Universities Journal of Agricultural Sciences, Sep 1, 2019

This study was carried out through two consecutive seasons 2016 and 2017 to investigate the effec... more This study was carried out through two consecutive seasons 2016 and 2017 to investigate the effect of spraying with some antioxidants on vegetative growth, yield, fruit quality and nutritional status of twelve years old 'Navel orange᾿ trees grafted on sour orange rootstock and grown in a private orange orchard in Qalubia Governorate, Egypt cultivated in a silty clay loam soil. This experiment involved three antioxidant materials named (salicylic acid, citric acid and folic acid) and each one spraying by three levels of each of with (250, 500 and 1000 ppm) from each salicylic, citric and folic acid plus control treatment so the experiment included ten treatments. Selected trees were sprayed three times in March, in May in July by aqueous solution of salicylic acid, citric acid and folic acid until the point of runoff. The highest values of vegetative growth were obtained by spraying by 500 ppm salicylic acid, 1000 ppm citric acid and 500 ppm folic acid. Regarding to yield, results pointed out that the foliar spraying with 500 ppm salicylic acid, 500 ppm citric acid and 250 ppm folic acid gave the highest values of yield. Treatments of 500 ppm salicylic acid, 250 ppm citric acid and 250 ppm folic acid gave the highest values of physical and chemical fruit properties. In respect to nutrients content, the highest values of macronutrients were obtained by spraying of 250 ppm folic acid, while that spraying by 1000 ppm salicylic acid and 250 ppm folic acid gave the highest values of micronutrients. Therefore, using treatment 500 ppm salicylic acid may be recommended from economical point of view and as good treatment for enhancing Navel orange growth, yield, fruit quality and nutritional status especially under old citrus orchards.

Research paper thumbnail of Evaluation Efficacy of Some Combinations of Organic Fertilizers on Productivity, Fruit Quality and Nutritional Status of Wonderful Pomegranate

Egyptian Journal of Horticulture, 2019

T O EVALUATE efficacy of fertilizing with different combinations of organic fertilizers on yield,... more T O EVALUATE efficacy of fertilizing with different combinations of organic fertilizers on yield, fruit quality and nutritional status of "Wonderful" pomegranate trees, a field experiment was carried out in "Hegazi farm" located in Cairo to Alexandria desert road, Egypt. during three growing seasons 2016, 2017 and 2018 on nine years old pomegranate trees cv. 'Wonderful' growing in sandy loam soil under 62% shading. Nitrogen requirements were added from different combinations of commercial organic fertilizers such: Compost (COM), Chicken Manure (CHM), Cattle Manure (CAM) and Mineral Fertilizer (MF) by the rate 40 kg actual N fed-1 with or without humic acid addition. The experiment consists of ten treatments spread in a randomized complete block design with five replicates. Fertilizing with (50% (CHM)+ 50% (COM)), (50% (COM) + 50% (CAM) and (33.3% (CHM) + 33.3% COM) + 33.3% (CAM) + humic) enhanced vegetative growth, yield. Fertilizing with (50% (CHM) + 50% (COM) + humic) and (33.3% (CHM) +33.3% (COM) +33.3% (CAM) + humic) improved fruit physical properties like (arils weight, juice weight and juice volume). Fertilizing with, (50% (COM) + 50% (CAM) + humic) gave the highest content of TSS%, TSS/acid ratio & ascorbic acid and least content of acidity. So it could be recommended by, fertilizing "Wonderful" pomegranate trees by one of these treatments (50% CHM +50% COM + humic), (50% COM +50%CAM+ humic) and (33.3% CHM+33.3% COM+33.3% CAM +humic) by the rate of 40 kg actual N fed-1 to improve yield, fruit quality and nutritional status.

Research paper thumbnail of Effect of Spraying Washington Navel Orange Trees with Selenium on Vegetative Growth, Productivity and Fruit Quality

Arab Universities Journal of Agricultural Sciences, 2019

This study was carried out during two successive seasons, 2012 and 2013 in a private orchard in B... more This study was carried out during two successive seasons, 2012 and 2013 in a private orchard in Barshom vallage located at El-Kalubia Governorate Egypt. Washington Navel Orange trees (Citrus Sinensis) budded on sour orange rootstock (Citrus aurantium, L.) were 7-years-old and planted at 5 x 5 meters under basin irrigation system. This investigation aimed to study the effect of selenium (Se) levels (0, 20, 40, 80 and 160 ppm) as foliar spray on growth, yield, fruit quality, leaf mineral content and enzymes activity of Washington Navel orange trees. The obtained data showed that, selenium had a significant promotive effect on growth, yield, fruit quality, leaf mineral content and enzymes activity of Washington Navel orange trees. Results indicated that treatment of Se at 40 ppm gave the highest significant results, whereas, treatment 160 ppm gave the highest fruit selenium content.

Research paper thumbnail of Response of Manzanillo olive transplants to different nitrogen and cobalt applications

Journal of Plant Nutrition, 2014

The aim of this work was to study the effect of different levels of nitrogen and molybdenum on ve... more The aim of this work was to study the effect of different levels of nitrogen and molybdenum on vegetative growth and mineral content of Manzanillo olive transplants. A pot experiment was carried out during two successive seasons of 2011 and 2012 under a glass house of the Faculty of Agriculture, Ain Shams University at Shoubra El-Kheima, Cairo, Egypt on Manzanillo olive transplants. The experiment included three nitrogen levels (N =25, N =50 and N =75g N/pot/year) and four levels of molybdenum (M =zero, M =10, M =20 1 2 3 1 2 3 and M =30 ppm Mo).Thus the experiment was laid out in factorial experiment in complete randomize design. 4 Results showed that, N level (50 g N/pot/year) gave the highest significant values in all vegetative growth 2 characters. On the other hand, it was gradually increased in vegetative growth characters by increasing molybdenum level up to 20 ppm or 30 ppm. The combination between nitrogen and molybdenum levels, the best treatments were (N x M) and (N x M) which gave the highest values of most vegetative growth characters. 2 3 2 4 Regarding leaf nutrient content, results pointed out that, level N gave the highest values of N, P, K and Fe 2 content. With respect to molybdenum levels, in most cases levels M or M (20 or 30 ppm Mo) gave the highest 3 4 values especially for N, P, K, Fe and Mo. Regarding the interaction it could be concluded that, combining nitrogen with molybdenum increased macro-and micronutrients content of Manzanillo olive transplants.

Research paper thumbnail of Fertilizing Young Navel Orange Trees with Sulfur and Wood Ash as a Source of Sustainable Agriculture

This study was carried out during two successive seasons 2012 and 2013 to investigate the effect ... more This study was carried out during two successive seasons 2012 and 2013 to investigate the effect of sulfur & wood ash and their combination on soil pH & EC, vegetative growth and leaf mineral content of the four years old Navel orange trees budded on sour orange rootstock grown in a private orange orchard in Qalubia Governorate Egypt on clay loam soil. In order to define the suitable wood ash and sulfur combination addition at the first few years of tree planting in the orchard which induce great tree growth and optimum leaf mineral content. The study was involved two levels of sulfur (S = 0 and S =500 g tree/year) and five levels of 12 wood ash (W = 0, W = 250, W =500, W =1000 and W =2000 g/tree/year). It could be concluded that soil pH 12 3 4 5 and Ec values were increased by increasing wood ash level. So, it must be mixed with other compound decreased soil pH especially under our soil condition in Egypt. May be sulfur is good source for this purpose. Vegetative growth of Navel or...

Research paper thumbnail of Renal Outcomes Associated with the Use of Non-Insulin Antidiabetic Pharmacotherapy: A Review of Current Evidence and Recommendations

International Journal of General Medicine, 2020

Background: This study aims to discuss, summarize and compare the renal outcomes associated with ... more Background: This study aims to discuss, summarize and compare the renal outcomes associated with non-insulin antidiabetic (AD) pharmacotherapy prescribed for patients with type 2 diabetes mellitus (T2DM). Methods: A systematic search using predefined search terms in three scholarly databases, ScienceDirect, Google Scholar, and PubMed, was conducted. Original research articles published in the English language between 2012 and 2020 that reported renal outcomes associated with the use of non-insulin AD pharmacotherapy were eligible for inclusion. Review articles, meta-analysis studies, and conference proceedings were excluded. A studyspecific data extraction form was designed to extract the author's name, country, publication year, study design, study population, objectives, key findings, and conclusions. A narrative review of the key findings that focused on renal outcomes and renal safety issues was conducted. Results: Of the 18,872 results identified through the initial search, a total of 32 articles were included in this review. Of these, 18 of the included articles reported the renal outcomes of newer antidiabetic medications, eg, SGLT2 inhibitors and GLP-1 agonists. Eight studies focussed on the well-established antidiabetic medications, eg, metformin and sulphonylureas. The review reported three main types of the clinical impact of the prescribed AD on the renal outcomes: "renoprotective effects", "no additional risk" and "associated with a decline in renal parameters". Seventeen studies reported the renoprotective effects of AD, including SGLT2i studies (n=8), GLP1 studies (n=6), and DPP4i studies (n=3). The reported renoprotective effects included slowing down the GFR decline, improving albuminuria, and reducing renal adverse events. The "no additional risk" impact was reported in eight studies, including DPP4i studies (n=3), two SGLT2i studies (n=2), metformin studies (n=2), and one study involving pioglitazone. Furthermore, seven studies highlighted the "associated with a decline in renal parameters" effect. Of these, three involved SGLT2i, two with metformin, and one for each DPP4i and sulphonylurea. Conclusion: More than half of the studies included in this review supported the renoprotective effects associated with the use of AD medications, particularly GLP-1A, SGLT2i, and some of the DPP4i. Further studies involving patients with various stages of chronic kidney disease (CKD) are required to compare AD medications' renal effects, particularly the newer agents.

Research paper thumbnail of Efficacy of Zinc Foliar Application from Different Sources on Productivity and Fruit Quality of Wonderful Pomegranate trees

Arab Universities Journal of Agricultural Sciences, 2020

Nanoparticles (NPs), especially from micronutrients, are recently motivated for replacing their c... more Nanoparticles (NPs), especially from micronutrients, are recently motivated for replacing their common mineral counterparts. To evaluate their comparative efficacy, this investigation was conducted to estimate the impact of foliar application of zinc through different sources on productivity, fruit quality and improve marketable fruit of "Wonderful" pomegranate trees. The field experiment was performed during two seasons (2017 and 2018) on sevenyear old pomegranate trees "Wonderful" cv., cultivated in a private "Hegazi" farm located at 57 km. from Cairo on the road to Alex., Egypt. Four sources of zinc named "Zinc Sulphate, Zinc mannitol complex, Bio-Nano zinc (Bio Zn NPs) and Zinc Oxide nanoparticle (ZnO NPs) with four rates from each other were sprayed twice (the first before one week from full bloom and the second after a month from the first). So the experiment included seventeen treatments in a sample study spread in a randomized complete block design by five replicates. Results explicated that the greatest significant values of fruit set% were recorded by Bio Nano Zinc (Bio Zn NPs) treatments especially (400 ppm Bio-Nano Zinc (Bio Zn NPs)). Spraying with (3000, 4000 ppm Zn mannitol complex) and (300, 400 ppm Bio-Nano Zinc (Bio Zn NPs)) showed significantly the greatest values of productivity, improves marketable fruits and fruit quality of "Wonderful" pomegranate trees. So it could be recommended by spraying "Wonderful" pomegranate trees by 3000 ppm Zinc mannitol complex or 300 ppm Bio-Nano zinc (Bio Zn NPs). Another important point is that the application of Bio Zn NPs fertilizer at around 10% from the commercial dose of zinc sulphate resulted in the same results without any change in the productivity, further researches are needed to study a further low level of Zinc Oxide nanoparticle (ZnO NPs) below (100 ppm Zinc Oxide nanoparticle (ZnO NPs)) which may be improving yield and fruit quality.

Research paper thumbnail of البحث الاول

HE AIMS of this research were to minimizing mineral nitrogen fertilizers and evaluate the efficie... more HE AIMS of this research were to minimizing mineral nitrogen fertilizers and evaluate the efficiency of some organic fertilizers individually or combined with humic acid on yield, fruit quality and leaf mineral content of "Wonderful" pomegranate trees. This research was carried out through three successive seasons (2015, 2016 and 2017) in Hegazi private orchard located at 57 kilometer from Cairo on the desert road to Alexandria, Egypt on eight years old pomegranate trees "Wonderful" cv. The experiment consists of two levels of humic acid (0 and 50 g/tree/season) and five nitrogen fertilizers form [chicken manure, compost, cattle manure, mineral nitrogen as experiment control 40 kg actual N/fed and mineral nitrogen as orchard control 80kg actual N/fed] .The experiment was designed in factorial experiment in a randomized complete block design. All organic nitrogen sources applied at a rate of 40kg actual N/fed. It could be concluded that, humic acid addition affected lack significant on yield, fruit physical and chemical properties and leaf nutrient content. Generally chicken manure and compost gave the highest values of most characters followed closely by two mineral treatments. When compared between two mineral N treatments the data revealed that 40kg N/fed /year was sufficient to give the highest values of most studied parameters and was equaled by 80kg N/fed /year. Regarding the combination between humic acid and nitrogen fertilizers the data showed that chicken manure and compost without addition of humic acid gave the highest values of yield and fruit characters followed closely by two mineral treatments. Thus it could be safely recommended by fertilizing with (40kg N/fed /year) instead of (80kg N/fed /year) on the other hand, fertilizing by chicken manure or compost (40 g N/tree/year) with or without humic addition (50 g /tree/year) improved yield ,fruit physical & chemical properties and reduce environmental pollution.