Md. Mahedy Alam | Hajee Mohammad Danesh Science & Technolgy University, Bangladesh (original) (raw)
Papers by Md. Mahedy Alam
Journal of aridland agriculture, May 3, 2024
Journal of Aridland Agriculture, 2024
In the present study, the combined effects of cow dung (CD) and zinc (Zn) fertilizers on tomato g... more In the present study, the combined effects of cow dung (CD) and zinc (Zn) fertilizers on tomato growth and yield
was studied. Seven (7) treatments as T0
=CD0
Zn0
(Control), T1
=CD5
Zn0
, T2
=CD0
Zn1
, T3
=CD0
Zn1.5, T4
=CD5
Zn2
,
T5
=CD5
Zn2.5, T6
=CD5
Zn3 were used in a RCBD with three replications using two factors like cow dung (0 and 5 t ha-1)
and zinc fertilizers (0, 1, 1.5, 2.0, 2.5, and 3.0 kg ha-1).The use of CD and Zn fertilizers had a substantial impact on
all of the assessed growth, yield contributing attributes, and yield. The result revealed that the highest yield and yield
contributing characters such as plant height (51.33, 73.00 and 105.00 cm at 35, 50 and 65 DAT, respectively), number of
leaves plant-1 (17.00, 19.33 and 24.00 at 35, 50 and 65 DAT, respectively), number of branches plant-1 (11.00, 12.00 and
14.00 at 35, 50 and 65 DAT, respectively), maximum number of flower clusters plant-1 (7.00 and 15.60 at 50 and 65 DAT,
respectively), number of fruits plant-1 (
8.00 and 46.09 at 50 and 65 DAT, respectively), the highest individual fruit weight
(73.00 g), weight of fruit plant-1 (
4.83 kg), fruit length (7.50 cm), fruit diameter (4.17 cm) and yield (55.00 t ha-1) were
produced at T6 (5 t CD ha-1 and 3 kg Zn ha-1) but lowest in T0 (control) in all parameters. The results of the study
suggest that combining CD and Zn fertilizers is an excellent source of tomato fertilization, with T6 treatment (5 t CD
ha-1 and 3 kg Zn ha-1) being found to be the most suitable due to the use of fewer treatment factors than recommended
doses for obtaining economically viable yield.
Pakistan Journal of Botany
The study was conducted to investigate the application outcome of vermicompost (VC) and phosphoru... more The study was conducted to investigate the application outcome of vermicompost (VC) and phosphorus (P) on the growth, yield contributing traits, yield, and post-harvest soil fertility status. Six treatment combinations were used and which were T1: VC0% P0% (Control treatment
Sustainable agriculture reviews, 2023
Climate change has accentuated extreme events such as drought and flooding, thus altering the sup... more Climate change has accentuated extreme events such as drought and flooding, thus altering the supply of water to plants. To solve this issue, the application of biochar to soils appears promising for managing soil water loss and improving the quality of irrigation water. Here we review the impact of biochar on irrigation with focus on soil water holding capacity, surface runoff and erosion, hydraulic conductivity, nutrients and pollutants. We found that biochar can improve soil water holding capacity by 12-60%, or by 98% when biochar is engineered, reduce surface runoff and erosion by 5.1-77.2%, increase hydraulic conductivity by 328%, reduce nitrate leaching by 75%, and accelerate phosphate leaching by 72%. The underlying mechanisms are discussed.
Zenodo (CERN European Organization for Nuclear Research), Dec 15, 2022
Rhizome used as seed is utilized to cultivate ginger, and it comprises approximately half of the ... more Rhizome used as seed is utilized to cultivate ginger, and it comprises approximately half of the entire cost of production. In the Horticulture Farm of HSTU, Dinajpur, a study was carried out to assess the performance of the transplant production system of ginger cultivation with comparable growth and yield to traditional planting. A randomized complete block design with four replications was employed to conduct the study. The experiment comprised four treatments: T1= direct planting of seed rhizomes (control), T2= single bud transplanting (~5-10 g), T3= two buds transplanting (~10-15 g), T4= three buds transplanting (~15-20 g). Growth-related traits and yield of ginger were profoundly influenced by rhizome transplanting methods. In direct rhizome planting, the lowest days (40.61) for 50% emergence were noted. The direct planting of seed rhizomes resulted in the highest plant height (58.37 cm), number of tillers per hill (14.05), number of leaves per hill (159.01), yield per plant (133.46 g), and yield per ha (19.07 ton) due to the substantial food storage in it. On the contrary, the observed parameters of ginger were mostly statistically consistent across distinct transplanting methods. In respect of ginger cultivation's economics, T4 treatment provided the greatest net return (823600 TK/ha), whereas T3 treatment revealed the highest benefit-cost ratio (3.10). Considering the above facts, the results of this study demonstrated the suitability of the two-bud transplant approach due to the reduction in seed rhizome quantity, seed cost, and ultimately increased net profit in an economically feasible amount.
Zenodo (CERN European Organization for Nuclear Research), Sep 15, 2022
during the period of December 2016 to April 2017 in order to investigate the effects of sulphur (... more during the period of December 2016 to April 2017 in order to investigate the effects of sulphur (S) and poultry manure (PM) on the growth and yield of boro rice (BRRI dhan29), as succeeding soil properties. Six different levels of sulphur and poultry manure were used as treatments viz., T 0 = 0 kg S + 0 t PM ha-1 , T 1 =9 kg ha-1 S + 0 t PM ha-1 , T 2 = 6.75 kg ha-1 S + 1.5 t PM ha-1 , T 3 = 4.5 kg ha-1 S + 3 t PM ha-1 , T 4 = 2.25 kg ha-1 S + 4.5 t PM ha-1 , T 5 = 0 kg ha-1 S + 6 t PM ha-1. The experiment was laid out in a randomized complete block design with four replications. The experimental results revealed that plant height, 1000-seeds weight, unfilled grain, grain yield, straw yield were significantly influenced by S and PM. The treatment T 3 produced the longest plant (91.67cm) and panicle (24.69 cm), the maximum number of tillers (15.45) and filled grain (156.9), while the lowest values (83.57cm, 22.49 cm, 12.20 and 134.00, respectively) were found in control condition. The minimum number of unfilled grains (18.88) was recorded in T 3 treatment which was statistically different from other treatments, and the maximum unfilled grains (30.48) was obtained in T 0 treatment. The 1000-grain weight (23.40) was highest in T 3 treatment and lowest (21.65) in control treatment. The grain yield and straw yield of rice were significantly influenced with the application of S along with PM. It was found that the application of 4.5 kgha-1 S ha-1 and 4 t PM ha-1 showed the highest grain (6.90 t ha-1) and straw yield (8.23 t ha-1) and harvest index (45.60%), whereas the lowest grain and straw yield was obtained without S and PM. Combined application of S and PM showed than sole S but sole application of PM also showed better results. Sole PM (T 5) showed best results of soil properties like OM, total N, available P, and exchangeable K contents in the post-harvest soil which were statistically identical T 3 and T 4 treatments. The highest level of available S (20.69 ppm) was recorded at T 2 which was at par with T 3 treatment. Considering plant growth, yield and post-harvest soil health 4.5 kg ha-1 , S ha-1 and 4 t PM ha-1 may be suggested for the sustainable crop production.
SAINS TANAH - Journal of Soil Science and Agroclimatology
Globally, biochar research and its application for soil improvement have attracted the interest o... more Globally, biochar research and its application for soil improvement have attracted the interest of many researchers, primarily environmental and soil scientists, in the last decade. But, a limited number of biochar research studies have been conducted in Bangladesh. Therefore, a comprehensive study on biochar research is necessary to find out the scope and opportunities of biochar application in the soils of Bangladesh. Generally, biochar can improve the physical, chemical, and biological properties of soils. It also has a significant role in greenhouse gas emissions. The contaminated soils can also be remediated through the judicious application of biochar. In Bangladesh, biochar application enhanced soil pH, organic matter, phosphorus availability, and agricultural production while decreasing soil acidification, microbial activity, and heavy metals mobility. Besides that, there were both positive and negative findings regarding nitrogen availability, greenhouse gas emissions, and ...
The study was conducted to investigate the application outcome of vermicompost (VC) and phosphoru... more The study was conducted to investigate the application outcome of vermicompost (VC) and phosphorus (P) on the growth, yield contributing traits, yield, and post-harvest soil fertility status. Six treatment combinations were used and which were T1: VC0% P0% (Control treatment
Rhizome used as seed is utilized to cultivate ginger, and it comprises approximately half of the ... more Rhizome used as seed is utilized to cultivate ginger, and it comprises approximately half of the entire cost of production. In the Horticulture Farm of HSTU, Dinajpur, a study was carried out to assess the performance of the transplant production system of ginger cultivation with comparable growth and yield to traditional planting. A randomized complete block design with four replications was employed to conduct the study. The experiment comprised four treatments: T1= direct planting of seed rhizomes (control), T2= single bud transplanting (~5-10 g), T3= two buds transplanting (~10-15 g), T4= three buds transplanting (~15-20 g). Growth-related traits and yield of ginger were profoundly influenced by rhizome transplanting methods. In direct rhizome planting, the lowest days (40.61) for 50% emergence were noted. The direct planting of seed rhizomes resulted in the highest plant height (58.37 cm), number of tillers per hill (14.05), number of leaves per hill (159.01), yield per plant (133.46 g), and yield per ha (19.07 ton) due to the substantial food storage in it. On the contrary, the observed parameters of ginger were mostly statistically consistent across distinct transplanting methods. In respect of ginger cultivation's economics, T4 treatment provided the greatest net return (823600 TK/ha), whereas T3 treatment revealed the highest benefit-cost ratio (3.10). Considering the above facts, the results of this study demonstrated the suitability of the two-bud transplant approach due to the reduction in seed rhizome quantity, seed cost, and ultimately increased net profit in an economically feasible amount.
during the period of December 2016 to April 2017 in order to investigate the effects of sulphur (... more during the period of December 2016 to April 2017 in order to investigate the effects of sulphur (S) and poultry manure (PM) on the growth and yield of boro rice (BRRI dhan29), as succeeding soil properties. Six different levels of sulphur and poultry manure were used as treatments viz.
Globally, biochar research and its application for soil improvement have attracted the interest o... more Globally, biochar research and its application for soil improvement have attracted the interest of many researchers, primarily environmental and soil scientists, in the last decade. But a limited number of biochar research studies have been conducted in Bangladesh. Therefore, a comprehensive study on biochar research is necessary to find out the scope and opportunities of biochar application in the soils of Bangladesh. Generally, biochar can improve the physical, chemical, and biological properties of soils. It also has a significant role in greenhouse gas emissions. The contaminated soils can also be remediated through the judicious application of biochar. In Bangladesh, biochar application enhanced soil pH, organic matter, phosphorus availability, and agricultural production while decreasing soil acidification, microbial activity, and heavy metals mobility. Besides that, there were both positive and negative findings regarding nitrogen availability, greenhouse gas emissions, and heavy metal accumulation. However, this review includes the selection of feedstock, the advancement of pyrolysis technology, the characterization of biochar, and the agronomic and environmental benefits of biochar use. This paper also reviews biochar study and application activities in Bangladesh over the last decade. Further research directions have been suggested to ensure the beneficial and safe application of biochar to agricultural property.
International Journal of Research and Scientific Innovation, 2021
During the period from December 2016 to May 2017 the study was carried out at the Research Field ... more During the period from December 2016 to May 2017 the study was carried out at the Research Field of Hajee Mohammad Danesh Science and Technology University, Dinajpur in Rabi season to evaluate the efficacy of different organic and inorganic fertilizers on the growth and yield of boro rice (BRRI dhan29). The experiment had eight treatments with three replications and as follows; T 0 : Control, T 1 : 100% N 75 P 12 K 45 S 9 (Recommended dose), T 2 : 50% NPKS + 6 t cowdung ha-1 , T 3 : 75% NPKS + 3 t cowdung ha-1 , T 4 : 50% NPKS + 6 t poultry manure ha-1 , T 5 : 75% NPKS + 3 t poultry manure ha-1 , T 6 : 50% NPKS + 6 t vermicompost ha-1 and T 7 : 75% NPKS + 3 t vermicompost ha-1. Application of organic and inorganic fertilizers resulted in a considerable influence on the growth and yield contributing characteristics of boro rice (BRRI dhan29). At harvest stage, the tallest plant (94.37 cm) and the greatest number of total tiller per hill (22.10) was recorded from T 4. The longest panicle (26.48 cm), maximum number of total grain per plant (178.3), the highest weight of 1000 seeds (21.96 g), the maximum grain yield (10.33 t ha-1) and straw yield (15.67 t ha-1) was also recorded in T 4 treatment. Although the highest biological yield was recorded from T 4 treatment but statistically similar result was found from T 5 treatment. The findings of the study showed that the performance of the treatment T 4 was the best among all treatments in terms of growth and yields. So, the recommendation of this study is amendment of soil with 50% NPKS + 6 t poultry manure ha-1 might be an efficient practice for achieving sustainable higher boro rice (BRRI dhan29) production.
International Journal of Advance Research and Innovative Ideas in Education, 2021
An experiment was conducted at the research field in Hajee Mohammad Danesh Science and Technology... more An experiment was conducted at the research field in Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur, during the boro season of 2017 to evaluate the combine effect of poultry manure (PM) and urea-N on the growth and yield of BRRI dhan28 (Oryza sativa L.). The experiment was laid out in a Randomized Complete Block Design (RCBD) with six treatments and four replications. Total amount of P, K and S fertilizers were applied as basal dose @ 90, 120 and 45 kg/ha, respectively during final land preparation but N from urea (300 kg/ha) was applied as per treatments in there equal splits. Application of PM and urea-N significantly influenced the growth and yield contributing characters of BRRI dhan28 with the savings of urea. The results of the study also indicated that most of the yield and yield contributing characters such as number of effectives tillers per hill (16.73), panicle length (23.98 cm), 1000 grains weight (26.04 gm), grain yield (5.40 t/ha) and straw yield (6.44 t/ha) were the maximum in treatment T 3 (urea-N @ 75 kg/ha + PM @ 6 t/ha). The overall results indicate that application of N fertilizer in T 3 as urea @ 75 kg/ha in combination with 6 t/ha PM can reduce the use of N fertilizer at a substantial level which ultimately reduces the cost of production and in terms of yield and nutrient content in soil in this region. The findings of the study suggest that integrated use of PM and N fertilizer is an important for sustainable production of rice.
Books by Md. Mahedy Alam
Climate change has accentuated extreme events such as drought and flooding, thus altering the sup... more Climate change has accentuated extreme events such as drought and flooding, thus altering the supply of water to plants. To solve this issue, the application of biochar to soils appears promising for managing soil water loss and improving the quality of irrigation water. Here we review the impact of biochar on irrigation with focus on soil water holding capacity, surface runoff and erosion, hydraulic conductivity, nutrients and pollutants. We found that biochar can improve soil water holding capacity by 12-60%, or by 98% when biochar is engineered, reduce surface runoff and erosion by 5.1-77.2%, increase hydraulic conductivity by 328%, reduce nitrate leaching by 75%, and accelerate phosphate leaching by 72%. The underlying mechanisms are discussed.
Journal of aridland agriculture, May 3, 2024
Journal of Aridland Agriculture, 2024
In the present study, the combined effects of cow dung (CD) and zinc (Zn) fertilizers on tomato g... more In the present study, the combined effects of cow dung (CD) and zinc (Zn) fertilizers on tomato growth and yield
was studied. Seven (7) treatments as T0
=CD0
Zn0
(Control), T1
=CD5
Zn0
, T2
=CD0
Zn1
, T3
=CD0
Zn1.5, T4
=CD5
Zn2
,
T5
=CD5
Zn2.5, T6
=CD5
Zn3 were used in a RCBD with three replications using two factors like cow dung (0 and 5 t ha-1)
and zinc fertilizers (0, 1, 1.5, 2.0, 2.5, and 3.0 kg ha-1).The use of CD and Zn fertilizers had a substantial impact on
all of the assessed growth, yield contributing attributes, and yield. The result revealed that the highest yield and yield
contributing characters such as plant height (51.33, 73.00 and 105.00 cm at 35, 50 and 65 DAT, respectively), number of
leaves plant-1 (17.00, 19.33 and 24.00 at 35, 50 and 65 DAT, respectively), number of branches plant-1 (11.00, 12.00 and
14.00 at 35, 50 and 65 DAT, respectively), maximum number of flower clusters plant-1 (7.00 and 15.60 at 50 and 65 DAT,
respectively), number of fruits plant-1 (
8.00 and 46.09 at 50 and 65 DAT, respectively), the highest individual fruit weight
(73.00 g), weight of fruit plant-1 (
4.83 kg), fruit length (7.50 cm), fruit diameter (4.17 cm) and yield (55.00 t ha-1) were
produced at T6 (5 t CD ha-1 and 3 kg Zn ha-1) but lowest in T0 (control) in all parameters. The results of the study
suggest that combining CD and Zn fertilizers is an excellent source of tomato fertilization, with T6 treatment (5 t CD
ha-1 and 3 kg Zn ha-1) being found to be the most suitable due to the use of fewer treatment factors than recommended
doses for obtaining economically viable yield.
Pakistan Journal of Botany
The study was conducted to investigate the application outcome of vermicompost (VC) and phosphoru... more The study was conducted to investigate the application outcome of vermicompost (VC) and phosphorus (P) on the growth, yield contributing traits, yield, and post-harvest soil fertility status. Six treatment combinations were used and which were T1: VC0% P0% (Control treatment
Sustainable agriculture reviews, 2023
Climate change has accentuated extreme events such as drought and flooding, thus altering the sup... more Climate change has accentuated extreme events such as drought and flooding, thus altering the supply of water to plants. To solve this issue, the application of biochar to soils appears promising for managing soil water loss and improving the quality of irrigation water. Here we review the impact of biochar on irrigation with focus on soil water holding capacity, surface runoff and erosion, hydraulic conductivity, nutrients and pollutants. We found that biochar can improve soil water holding capacity by 12-60%, or by 98% when biochar is engineered, reduce surface runoff and erosion by 5.1-77.2%, increase hydraulic conductivity by 328%, reduce nitrate leaching by 75%, and accelerate phosphate leaching by 72%. The underlying mechanisms are discussed.
Zenodo (CERN European Organization for Nuclear Research), Dec 15, 2022
Rhizome used as seed is utilized to cultivate ginger, and it comprises approximately half of the ... more Rhizome used as seed is utilized to cultivate ginger, and it comprises approximately half of the entire cost of production. In the Horticulture Farm of HSTU, Dinajpur, a study was carried out to assess the performance of the transplant production system of ginger cultivation with comparable growth and yield to traditional planting. A randomized complete block design with four replications was employed to conduct the study. The experiment comprised four treatments: T1= direct planting of seed rhizomes (control), T2= single bud transplanting (~5-10 g), T3= two buds transplanting (~10-15 g), T4= three buds transplanting (~15-20 g). Growth-related traits and yield of ginger were profoundly influenced by rhizome transplanting methods. In direct rhizome planting, the lowest days (40.61) for 50% emergence were noted. The direct planting of seed rhizomes resulted in the highest plant height (58.37 cm), number of tillers per hill (14.05), number of leaves per hill (159.01), yield per plant (133.46 g), and yield per ha (19.07 ton) due to the substantial food storage in it. On the contrary, the observed parameters of ginger were mostly statistically consistent across distinct transplanting methods. In respect of ginger cultivation's economics, T4 treatment provided the greatest net return (823600 TK/ha), whereas T3 treatment revealed the highest benefit-cost ratio (3.10). Considering the above facts, the results of this study demonstrated the suitability of the two-bud transplant approach due to the reduction in seed rhizome quantity, seed cost, and ultimately increased net profit in an economically feasible amount.
Zenodo (CERN European Organization for Nuclear Research), Sep 15, 2022
during the period of December 2016 to April 2017 in order to investigate the effects of sulphur (... more during the period of December 2016 to April 2017 in order to investigate the effects of sulphur (S) and poultry manure (PM) on the growth and yield of boro rice (BRRI dhan29), as succeeding soil properties. Six different levels of sulphur and poultry manure were used as treatments viz., T 0 = 0 kg S + 0 t PM ha-1 , T 1 =9 kg ha-1 S + 0 t PM ha-1 , T 2 = 6.75 kg ha-1 S + 1.5 t PM ha-1 , T 3 = 4.5 kg ha-1 S + 3 t PM ha-1 , T 4 = 2.25 kg ha-1 S + 4.5 t PM ha-1 , T 5 = 0 kg ha-1 S + 6 t PM ha-1. The experiment was laid out in a randomized complete block design with four replications. The experimental results revealed that plant height, 1000-seeds weight, unfilled grain, grain yield, straw yield were significantly influenced by S and PM. The treatment T 3 produced the longest plant (91.67cm) and panicle (24.69 cm), the maximum number of tillers (15.45) and filled grain (156.9), while the lowest values (83.57cm, 22.49 cm, 12.20 and 134.00, respectively) were found in control condition. The minimum number of unfilled grains (18.88) was recorded in T 3 treatment which was statistically different from other treatments, and the maximum unfilled grains (30.48) was obtained in T 0 treatment. The 1000-grain weight (23.40) was highest in T 3 treatment and lowest (21.65) in control treatment. The grain yield and straw yield of rice were significantly influenced with the application of S along with PM. It was found that the application of 4.5 kgha-1 S ha-1 and 4 t PM ha-1 showed the highest grain (6.90 t ha-1) and straw yield (8.23 t ha-1) and harvest index (45.60%), whereas the lowest grain and straw yield was obtained without S and PM. Combined application of S and PM showed than sole S but sole application of PM also showed better results. Sole PM (T 5) showed best results of soil properties like OM, total N, available P, and exchangeable K contents in the post-harvest soil which were statistically identical T 3 and T 4 treatments. The highest level of available S (20.69 ppm) was recorded at T 2 which was at par with T 3 treatment. Considering plant growth, yield and post-harvest soil health 4.5 kg ha-1 , S ha-1 and 4 t PM ha-1 may be suggested for the sustainable crop production.
SAINS TANAH - Journal of Soil Science and Agroclimatology
Globally, biochar research and its application for soil improvement have attracted the interest o... more Globally, biochar research and its application for soil improvement have attracted the interest of many researchers, primarily environmental and soil scientists, in the last decade. But, a limited number of biochar research studies have been conducted in Bangladesh. Therefore, a comprehensive study on biochar research is necessary to find out the scope and opportunities of biochar application in the soils of Bangladesh. Generally, biochar can improve the physical, chemical, and biological properties of soils. It also has a significant role in greenhouse gas emissions. The contaminated soils can also be remediated through the judicious application of biochar. In Bangladesh, biochar application enhanced soil pH, organic matter, phosphorus availability, and agricultural production while decreasing soil acidification, microbial activity, and heavy metals mobility. Besides that, there were both positive and negative findings regarding nitrogen availability, greenhouse gas emissions, and ...
The study was conducted to investigate the application outcome of vermicompost (VC) and phosphoru... more The study was conducted to investigate the application outcome of vermicompost (VC) and phosphorus (P) on the growth, yield contributing traits, yield, and post-harvest soil fertility status. Six treatment combinations were used and which were T1: VC0% P0% (Control treatment
Rhizome used as seed is utilized to cultivate ginger, and it comprises approximately half of the ... more Rhizome used as seed is utilized to cultivate ginger, and it comprises approximately half of the entire cost of production. In the Horticulture Farm of HSTU, Dinajpur, a study was carried out to assess the performance of the transplant production system of ginger cultivation with comparable growth and yield to traditional planting. A randomized complete block design with four replications was employed to conduct the study. The experiment comprised four treatments: T1= direct planting of seed rhizomes (control), T2= single bud transplanting (~5-10 g), T3= two buds transplanting (~10-15 g), T4= three buds transplanting (~15-20 g). Growth-related traits and yield of ginger were profoundly influenced by rhizome transplanting methods. In direct rhizome planting, the lowest days (40.61) for 50% emergence were noted. The direct planting of seed rhizomes resulted in the highest plant height (58.37 cm), number of tillers per hill (14.05), number of leaves per hill (159.01), yield per plant (133.46 g), and yield per ha (19.07 ton) due to the substantial food storage in it. On the contrary, the observed parameters of ginger were mostly statistically consistent across distinct transplanting methods. In respect of ginger cultivation's economics, T4 treatment provided the greatest net return (823600 TK/ha), whereas T3 treatment revealed the highest benefit-cost ratio (3.10). Considering the above facts, the results of this study demonstrated the suitability of the two-bud transplant approach due to the reduction in seed rhizome quantity, seed cost, and ultimately increased net profit in an economically feasible amount.
during the period of December 2016 to April 2017 in order to investigate the effects of sulphur (... more during the period of December 2016 to April 2017 in order to investigate the effects of sulphur (S) and poultry manure (PM) on the growth and yield of boro rice (BRRI dhan29), as succeeding soil properties. Six different levels of sulphur and poultry manure were used as treatments viz.
Globally, biochar research and its application for soil improvement have attracted the interest o... more Globally, biochar research and its application for soil improvement have attracted the interest of many researchers, primarily environmental and soil scientists, in the last decade. But a limited number of biochar research studies have been conducted in Bangladesh. Therefore, a comprehensive study on biochar research is necessary to find out the scope and opportunities of biochar application in the soils of Bangladesh. Generally, biochar can improve the physical, chemical, and biological properties of soils. It also has a significant role in greenhouse gas emissions. The contaminated soils can also be remediated through the judicious application of biochar. In Bangladesh, biochar application enhanced soil pH, organic matter, phosphorus availability, and agricultural production while decreasing soil acidification, microbial activity, and heavy metals mobility. Besides that, there were both positive and negative findings regarding nitrogen availability, greenhouse gas emissions, and heavy metal accumulation. However, this review includes the selection of feedstock, the advancement of pyrolysis technology, the characterization of biochar, and the agronomic and environmental benefits of biochar use. This paper also reviews biochar study and application activities in Bangladesh over the last decade. Further research directions have been suggested to ensure the beneficial and safe application of biochar to agricultural property.
International Journal of Research and Scientific Innovation, 2021
During the period from December 2016 to May 2017 the study was carried out at the Research Field ... more During the period from December 2016 to May 2017 the study was carried out at the Research Field of Hajee Mohammad Danesh Science and Technology University, Dinajpur in Rabi season to evaluate the efficacy of different organic and inorganic fertilizers on the growth and yield of boro rice (BRRI dhan29). The experiment had eight treatments with three replications and as follows; T 0 : Control, T 1 : 100% N 75 P 12 K 45 S 9 (Recommended dose), T 2 : 50% NPKS + 6 t cowdung ha-1 , T 3 : 75% NPKS + 3 t cowdung ha-1 , T 4 : 50% NPKS + 6 t poultry manure ha-1 , T 5 : 75% NPKS + 3 t poultry manure ha-1 , T 6 : 50% NPKS + 6 t vermicompost ha-1 and T 7 : 75% NPKS + 3 t vermicompost ha-1. Application of organic and inorganic fertilizers resulted in a considerable influence on the growth and yield contributing characteristics of boro rice (BRRI dhan29). At harvest stage, the tallest plant (94.37 cm) and the greatest number of total tiller per hill (22.10) was recorded from T 4. The longest panicle (26.48 cm), maximum number of total grain per plant (178.3), the highest weight of 1000 seeds (21.96 g), the maximum grain yield (10.33 t ha-1) and straw yield (15.67 t ha-1) was also recorded in T 4 treatment. Although the highest biological yield was recorded from T 4 treatment but statistically similar result was found from T 5 treatment. The findings of the study showed that the performance of the treatment T 4 was the best among all treatments in terms of growth and yields. So, the recommendation of this study is amendment of soil with 50% NPKS + 6 t poultry manure ha-1 might be an efficient practice for achieving sustainable higher boro rice (BRRI dhan29) production.
International Journal of Advance Research and Innovative Ideas in Education, 2021
An experiment was conducted at the research field in Hajee Mohammad Danesh Science and Technology... more An experiment was conducted at the research field in Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur, during the boro season of 2017 to evaluate the combine effect of poultry manure (PM) and urea-N on the growth and yield of BRRI dhan28 (Oryza sativa L.). The experiment was laid out in a Randomized Complete Block Design (RCBD) with six treatments and four replications. Total amount of P, K and S fertilizers were applied as basal dose @ 90, 120 and 45 kg/ha, respectively during final land preparation but N from urea (300 kg/ha) was applied as per treatments in there equal splits. Application of PM and urea-N significantly influenced the growth and yield contributing characters of BRRI dhan28 with the savings of urea. The results of the study also indicated that most of the yield and yield contributing characters such as number of effectives tillers per hill (16.73), panicle length (23.98 cm), 1000 grains weight (26.04 gm), grain yield (5.40 t/ha) and straw yield (6.44 t/ha) were the maximum in treatment T 3 (urea-N @ 75 kg/ha + PM @ 6 t/ha). The overall results indicate that application of N fertilizer in T 3 as urea @ 75 kg/ha in combination with 6 t/ha PM can reduce the use of N fertilizer at a substantial level which ultimately reduces the cost of production and in terms of yield and nutrient content in soil in this region. The findings of the study suggest that integrated use of PM and N fertilizer is an important for sustainable production of rice.
Climate change has accentuated extreme events such as drought and flooding, thus altering the sup... more Climate change has accentuated extreme events such as drought and flooding, thus altering the supply of water to plants. To solve this issue, the application of biochar to soils appears promising for managing soil water loss and improving the quality of irrigation water. Here we review the impact of biochar on irrigation with focus on soil water holding capacity, surface runoff and erosion, hydraulic conductivity, nutrients and pollutants. We found that biochar can improve soil water holding capacity by 12-60%, or by 98% when biochar is engineered, reduce surface runoff and erosion by 5.1-77.2%, increase hydraulic conductivity by 328%, reduce nitrate leaching by 75%, and accelerate phosphate leaching by 72%. The underlying mechanisms are discussed.