Quality seed production of rice (Oryza sativa L.) as influenced by integrated nutrient management during kharif season in the western undulating zone of Odisha (original) (raw)
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ENVIRONMENT AND ECOLOGY, 2019
A field experiment was undertaken to study the effect of integrated nutrient management on crop growth, yield and seed quality of rice cv Sha-tabdi during kharif season of 2017. The experiment was conducted with eight different nutrient management practices i.e. ZnSO 4 @ 25, T 7-75% RDF + 25% MC and T 8-50% MC + 50% VC, respectively in randomized block design comprising of 3 replications. The result of experiment revealed that rice plot fertilized with the combination of NPK @ 60 : 30 : 30 + ZnSO 4 @ 25 kg ha-1 recorded the highest seed yield of 3.96 t ha-1 which was 6.73% more yield (3.71 t ha-1) than the treatment N 80 P 40 K 40. Organic substitution by mustard cake (MC) and vermicompost (VC) had failed to register the significant impact on seed yield but the quality of rice seed was improved in terms of germination percentage, root length, shoot length of germinated seeds, seedling vigor index when crop was fertilized with the combined application of NPK @ 60:30:30 + ZnSO 4 @ 25 kg ha-1 .
The present investigation were conducted during Kharif 2015 and 2016 at Student Instructional Farm and lab experiments were carried out in Seed Testing Laboratory of Seed Technology Section, N. D. University of Agriculture and Technology, Kumarganj, Faizabad (U.P.) India with objective of the study was to optimization of seed technological parameters and micronutrients supplementation on yield contributing characters, seed recovery and quality in rice (Oryza sativa L.) for yield contributing traits and seed quality parameters i.e. days to 50% flowering, no of tillers per plant, productive tillers per hill, Plant height (cm), panicle length, Days to maturity, spikelet fertility, harvest index, seed recovery, seed yield (q/ha), 1000 seed weight (g), germination (%), vigour index and electrical conductivity. The experiment was laid out in Split Plot Design with three replications keeping two methods of transplanting viz. C1 (Normal method) and C2 (SRI method) in the main plot and three foliar spray of micronutrient doses viz. M1 (Zn, Fe and Mn @0.25%, 0.50%&0.25%), M2 (Zn, Fe and Mn @0.50%, 1.00%&0.50%) and M3 (Zn, Fe and Mn @0.75%, 1.50%&0.75%) in sub plot. The two transplanting spacing viz. S1 (15×20 cm) and (25×25 cm) were also applied in the sub plots with three genotype viz. NDR 97, NDR359 and BPT 5204. The result revealed that inoculation of transplanting method, spacing and foliar spray of micronutrients doses significantly improved days to 50% flowering, no. of tillers per plant, productive tillers per hill, Plant height (cm), panicle length, Days to maturity, spikelet fertility, harvest index, seed recovery, seed yield (q/ha), 1000 seed weight (g), germination (%), vigour index and reduce electrical conductivity. Overall the treatment of findings revealed that rice crop should be transplanted on 25×25 cm under SRI method with the foliar spray application of Zn, Fe and Mn @0.75%, 1.50%&0.75%, for obtaining high seed yield potential of the variety producing good quality seeds.
Progressive Agricultural Sciences, 2019, 1(1): 89-97, 2019
Population explosion is now a days a major factor that affects the food production in our country and thus quality food grain production in enough quantity without damaging the soil quality, productivity and fertility is one of the biggest challenges in the present agriculture scenario. Now a days, application of huge amount of chemical fertilizer, pesticide, growth hormone etc. are becoming mandatory to achieve the production requirements and also to meet the food demand. But this faulty method not only decreases the soil fertility, but also pollute the environment and hamper the soil ecosystem and biodiversity. This situation is very prominent in case of rice cultivation area where huge quantity of chemical fertilizers are used. So, to overcome this problem INM is one of the emergent approaches that can minimizes the heavy use of chemicals and in other hand, maximize use efficiency and improve the soil health. Combined effect of both essential and beneficial nutrient elements and also effect of different plant growth promoting substances in plants can be fulfilled completely by judicial and proper Integrated Nutrient Management practice. Rice (Oryza sativa L.) is an important cereal crop and grown across the world. Most of people of the world depend on rice for their secured livelihood and a way of life. It is the staple food for more than 65 per cent of the people and provides employment and livelihood to 70 per cent of the Indians. There is a need to enhance the sustainable productivity of the rice to meet the growing demand under conditions of declining quantity and quality of land with special reference to INM.Changing in cropping sequence with respect to availability of resources the integrated approach of nutrient supply through inorganic and organic has become very much promising in building soil health and quality of produce and meeting the food security.
Response of Boro Rice to Planting Stage of Seedlings and Nutrient Management under SRI
International Journal of Bio-resource and Stress Management
The current research work was carried out at the experimental field of Dakshin Dinajpur Krishi Vigyan Kendra, Majhian, South Dinajpur, West Bengal during Boro 2011-12 season. The experiment was laid out in factorial RBD design and replicated thrice. There were total twenty treatments out of which eighteen treatments were comprised of factorial combinations of two planting stages (planting at two leaved stage and three to four leaved stage), three sources of organic nutrients (FYM 10 t ha-1 , FYM 5 t ha-1 and FYM 5 t ha-1 +Azospirillum biofertilizer) and three modes of N application (blanket split as ¼ basal+½ active tillering+¼ panicle initiation, LCC based N application at critical value 3 and at critical value 4). The experiment included two absolute controls under each planting stage i.e. transplanting at two leaved stage and transplanting at three to four leaved stage. Two leaved stage transplanted treatment significantly increased plant height, number of tiller hill-1 , dry matter production m-2 , effective tillers hill-1 , filled grains panicle-1 , test weight, grain and straw yields in comparison to transplanting at three to four leaved stage. Among organic sources of nutrient, FYM 10 t ha-1 recorded significantly taller plant, more number of tiller hill-1 , higher dry weight per square meter, effective tillers hill-1 , filled grains panicle-1 , test weight, grain and straw yields followed by FYM 5 t ha-1 +Azospirillum. On an average LCC treatments provided better response to obtain higher grain as well as straw yields and in between LCC based N applications, LCC at 4 showed better result than LCC at 3.
2021
The agronomic investigation was undertaken at Post Graduate Research Farm, Agronomy Section of Rajarshee Chhatrapati Shahu Maharaj College of Agriculture, Kolhapur (M.S.), India during kharif, 2019. The experiment was laid out in a split plot design with four replications and nine treatment combinations comprising of three varieties of rice V1-Indrayani, V2-Phule Radha and V3-Bhogawati as main plot treatments and three fertilizer levels F1-75% RDF, F2-100% RDF and F3-125% RDF as sub plot treatments on sandy clay loam soil. The variety Indrayani had the higher grain yield (59.50 q ha-1), straw yield (86.75 q ha-1) and harvest index (40.62%) which were statistically at par with Bhogawati and superior over Phule Radha. Grain yield (58.83 q ha-1), straw yield (87.73 q ha-1) and harvest index (40.06%) were also significantly maximum with the application of 125% RDF ha-1 which was at par with application of 100% RDF ha-1 and significantly superior over 75% RDF ha-1. The effect of interaction between rice varieties and fertilizer levels were significantly influenced the yield attributing characters. The rice variety Indrayani when applied with 125% RDF ha-1 exhibited significantly superior grain yield (64.62 q ha-1), straw yield (92.25 q ha-1) and harvest index (41.18%) over rest of all the remaining interaction combinations. The content of N, P and K in grain were (1.24%, 0.31% & 0.14%) and straw (0.78%, 0.19% & 1.49%) respectively, total uptake of nutrients were (142.66, 35.85 & 138.56 NPK kg ha-1) respectively by rice crop were found significantly maximum with the variety Indrayani followed by Bhogawati and which was superior over Phule Radha. Available N, P and K were (268.09, 36.42 & 277.17 NPK kg ha-1) respectively in soil after harvest was found significantly maximum with the variety Phule Radha followed by Bhogawati which was superior over Indrayani. The content of N, P and K in grain were (1.29%, 0.31% & 0.14%) and straw (0.79%, 0.20% & 1.49%) respectively, total uptake of nutrients were (146.35, 36.85 & 140.19 NPK kg ha-1) respectively by rice crop and available N, P and K were (267.24, 37.22 & 289.91 NPK kg ha-1) respectively in soil after harvest were found significantly maximum with the application of 125% RDF ha-1 which was at par with application of 100% RDF ha-1 and significantly superior over 75% RDF ha-1 .
Influence of different agronomic strategies on growth and yield of rice
AkiNik publication, 2024
The field Experiment was conducted at Annamalai University, Experimental Farm, Department of Agronomy during Kuruvai season of June-September, 2023, to study the influence of different agronomic strategies on growth and yield of rice. A short duration rice variety ADT 43 was selected for the study. The field experiment was laid out in Randomized Block Design (RBD) with nine treatments in three replications. Based on the experimental results, it may be concluded that the application of 50% RDN + RDF (P&K) + foliar application of nano N +ZnSO4 + FeSO4 at 25 and 45 DAT (T9) effectively recorded highest crop growth rate, plant height, leaf area index, number of tillers hill-1 and dry matter production. The treatment T1 recorded the lowest values of growth and yield.
Performance of Rice Crop as Function of Seed Treatment and Irrigation Method
we aimed with this study to evaluate the performance of irrigated rice plants, as a function of seed treatment composition and crop irrigation management. Two factors were studied in the trial: (A) irrigation management (continuous or intermittent); and (B) seed treatment composition (complete, fungicide only, insecticide only, no treatment + clomazone, and no treatment without herbicide). Standak and Vitavax-Thiram were used as insecticide and fungicide standards, respectively. The Guri Inta CL rice variety, treated three days before planting, was adopted. Irrigation was established twenty days after emergence. In continuous irrigation, a 7 cm mean water layer was maintained during the experimental period; in intermittent irrigation, a 10 cm initial water layer was established and then water supply was interrupted until 10-15% of the plot was aerated, when the 10 cm layer was reestablished. Twelve days after sowing, rice emergence was evaluated. Twenty days after crop emergence, the rice plant height was evaluated. Thirty days after emergence, plant density was again measured. At the end of the crop cycle, grain yield was evaluated. Data were analyzed based on confidence intervals at 95% level. There is no evidence of interference from the differential seed treatment on the agronomic performance of rice, nor differences resulting from their interaction with the irrigation management.
Comparison of different planting methods and physiological studies for yield enhancement in rice
Mohanasundar, 2021
A field experiment was conducted at Annamalai University Experimental Farm, Annamalainagar, during Samba season 2017 (August-November) to evaluate different methods of rice cultivation along with certain levels of nutrients and sources, on its growth and yield parameter. The experiment was laid out in Split Plot Design. The planting methods was assigned to main plots while, different levels and sources of nutrients to the sub plots. Two planting methods viz., (M1) wet seeded method and (M2) transplanting method were tried. The sub treatments were, Control (No manure) (S1), Recommended dose of fertilizer (120:38:38 N, P and K kg ha-1) (S2), RDF (120:38:38 N, P and K kg ha-1) + Pressmud (5 tonns ha-1) + zinc sulphate (25 kg ha-1) (S3), RDF (120:38:38 N, P and K kg ha-1) + Azospirillum bracilance @ 2 kg ha-1 as a soil application + zinc sulphate (25 kg ha-1) (S4), RDF (120:38:38 N, P and K kg ha-1) + pressmud (5 tonns ha-1) + Azospirillum bracilance @ 2 kg ha-1 as a soil application + zinc sulphate (25 kg ha-1) (S5).The results of the study revealed that, among the main plot treatments, i.e., various levels of crop establishment, transplanting method recorded significantly higher growth rate than compare to direct seeded method of planting. Among different sources and levels, i.e., five sub plot treatments, large variation were noticed RDF (120:38:38 N, P and K kg ha-1) + pressmud (5 tonns ha-1) + Azospirillum bracilance @ 2 kg ha-1 as a soil application + zinc sulphate (25 kg ha-1) (S5) recorded higher growth and yield attributing characters compared to the rest of the treatments, yet, it was found on par with (S3).
Effect of Nutrient Solution on Yield and Quality of Rice
A field experiment was conducted at Bangabandhu Sheikh Mujibur Rahman Agricultural University experimental farm during August to November 2010 to observe the effect of full recommended doses of fertilizer (RDF) alone and in combination with 1000, 3000 and 5000 times diluted nutrient solution together with 50 and 75% RDF on the yield and quality of rice (BR 11). The highest grain yield of 4.42 t/ha was obtained due to the cumulative effect of maximum number of tillers per hill, panicle length (cm) and1000 seed weight (g) on the other hand total soluble solids (brix value), protein, ash, ascorbic acid and β-carotene contents in rice were the highest where 1000 times diluted nutrient solution was added along with 100% recommended dose of fertilizers. Treatment receiving thousand times diluted nutrient solution along with 75% RDF also showed similar results in most of the parameters of the crop studied.
A field experiment was conducted in agronomy experimental field of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during T. aman season in 2011 on BRRI dhan33 to find out the effect of nitrogen (N) and zinc (Zn) application. The experiment was laid in a split-plot design with three replications having N in the main plots and Zn fertilizer in the sub-plots. Five N levels viz. 0 (control), 50, 70, 90 and 110 kg ha -1 N were utilized where urea was used as nitrogen source which top-dressed at three equal installments at 7, 25 and 40 DAT. On the other hand three levels of Zn i.e. 0 (control), 2.5, and 5 kg ha -1 Zn were applied as ZnSO 4 .7H 2 O and broadcasted on soil surface and incorporated with cultivator as basal dose. All the agronomic operations except those under study were kept constant and uniform throughout the experimentation. From the result it was observed that all the yield components significantly increase with N and Zn application though had increased but not significantly indicating that a still higher level of N and Zn may be required to obtain a significance difference. The highest (4.56 t ha -1 ) grain yield was obtained from 90 kg ha -1 N application, on the other hand from 2.5 kg ha -1 Zn (4.29 t ha -1 ) application. Finally, it was observed that combination effect of 90 kg ha -1 coupled with 2.5 kg ha -1 gave significantly the highest grain yield (5.38 t ha -1 ).