Browsing by Author "Srivastava, V. K."
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ThesisItem Open Access Effect of crop establishment methods and nutrient management practice on productivity of rice and its effect on succeeding wheat.(Department of Agronomy Institute of Agricultural Sciences, Banaras Hindu University Varanasi, 2021) Parihar, Ritesh Kumar; Srivastava, V. K.ABSTRACT The present investigation entitled “Effect of crop establishment methods and nutrient management on productivity of rice and its effect on succeeding wheat was conducted during the kharif and rabi season of 2017 and 2018 at the Agriculture Research Farm, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh. The field experiment way laid out in split plot design assigning three crop establishment methods in main plot comprising of M1 (Direct seeding (aerobic)), M2 (Direct seeding (drum seeder)-anaerobic) and M3 (Conventional transplanting)]. Each main plot was further divided into six sub plots to accommodate sub plot treatments i.e. nutrient management [S1 (100% RDF), S2 (75% RDF + 25% N through organic source), S3 (50% RDF + 50% N through organic source), S4 (125% RDF) and S5 (150% RDF) and S6 (LCC based N application)]. Thus a total of 18 treatment combinations with four replications were tested in the study. Recommended dose of nitrogen, phosphorous and potassium (150:60:40) through urea, DAP and MOP, respectively were applied during both the experimental years. Nitrogen was applied 50% as basal and remaining in two equal splits. The total rainfall experienced during the crop growth season was 656.8 mm in 2017 and 8.509 mm in 2018. HUR 105 variety of rice was used for sowing and transplanting of experiment. Crop establishment and nutrient management were done as per treatment. Other crop management practices were followed as per the recommendation of the area. Among crop establishment methods, direct seeding (drum seeder)-anaerobic had a significant influence on crop growth, phenology, yield attributes and yield, nutrient uptake, qualitative characters, net returns, B:C ratio and profitability of rice during both the years. In case of rice nutrient management, application of 125% RDF exerted significantly higher crop growth, phenology, yield attributes and yield, nutrient uptake, qualitative characters, net returns, B: C ratio and profitability of rice over rest of the treatments during both the experimental years.ThesisItem Open Access Effect of delayed time of planting on growth and yield of different varieties of rice (Oryza sativa L.)(Department of Agronomy Institute of Agricultural Sciences Banaras Hindu University Varanasi, 2020) Satapathy, Santrupta Manmath; Srivastava, V. K.The present investigation entitled “Effect of delayed time of planting on growth and yield of different varieties of rice (Oryza sativa L.)” was conducted at the Agricultural Research Farm, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India during kharif season of 2018-2019. The experiment was conducted in split plot design with three dates of planting viz., D1 (06/08/2018), D2 (13/08/2018) and D3 (20/08/2018) as main factor, and four rice varieties viz., HUR-3022, DRR-44, HUR-4-3 and HUR-105 as sub main factor and the treatments in three replications. Plant growth attributes i.e. plant height (cm), number of leaves per m2, number of tillers per m2, dry matter accumulation (g), yield attributes such as panicle length (cm), panicle weight (g), test weight (g), grain yield (t ha-1), straw yield (t ha-1) and nutrient uptake by both straw and grain were determined. The obtained results shown that crop planted on 06/08/2018 recorded significant higher growth attributes, yield attributes, grain yield, straw yield over 13/08/2018 and 20/08/2018 but at par with others considering nutrient uptake. Among varieties, DRR-44 found significantly superior in growth attributes, yield attributes and yield over HUR-3022, HUR-4-3, HUR-105. There was no significant difference observed among the varieties as the characters like straw yield and nutrient uptake were concerned. As this experiment was conducted only for one season, therefore it needs further evaluation to select the superior cultivar under different planting dates.ThesisItem Open Access Studies on Hybrid Vigour, Combining Ability And Inheritance of Some Qualitative Characters in Bittergourd (Momordica Charantia L.)(MPUT, UDAIPUR, 1970-11-16) Srivastava, V. K.; Nath, PremThesisItem Open Access Studies on Hybrid Vigour, Combining Ability And Inheritance of Some Qualitative Characters in Bittergourd (Momordica Charantia L.)(MPUAT, Udaipur, 1970-11-16) Srivastava, V. K.; Nath, PremThesisItem Open Access Studies On Seed Viability, Vigour And Longevity In Tomato (Lycopersicon Esculentum Mill.)(Chaudhary Charan Singh Haryana Agricultural University; Hisar, 2000) Suresh Kumar; Srivastava, V. K.