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Jat, Bhanwar Lal
- Effect of Nitrogen and Zinc Fertilization on Growth and Productivity of Maize
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1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
Source
International Journal of Agricultural Sciences, Vol 13, No 2 (2017), Pagination: 161-176Abstract
The experiment consisted of 12 treatments combinations comprising 4 nitrogen levels (60, 80, 100 and 120kg ha-1) and 3 zinc levels (2.5, 5.0 and 7.5kg ha-1). The experiment was laid out in Factorial Randomized Block Design with four replications. The experimental soil was clay loam in texture, slightly alkaline in reaction, medium in available nitrogen (275.0kg ha-1) and phosphorus (20.21kg ha-1) and potassium (280.5kg ha-1) and low in available zinc (0.49ppm). The crop was shown on 9.7.2011 using variety PEHM-2 with recommended seed rate of 25kg ha-1. The results revealed that application of N upto 100kg ha-1 recorded significantly higher plant height (50, 75DAS and at harvest), dry matter accumulation and leaf area index at all the growth stages over 60 and 80kg N ha-1. Likewise, application of N upto 100kg ha-1 was found significantly superior in increasing RGR and NAR between 25 and 50 days compared to 60kg N ha-1. Application of 100 and 120kg N ha-1 statistically at par were found significantly superior in increasing cob plant-1, grain cob-1, grain weight cob-1, 100 grains weight and shelling per cent over 60 and 80kg N ha-1. Application of 80 and 100kg N ha-1 significantly increased grain; stover, biological yield and harvest index over 60kg N ha-1. The per cent increase in grain, stover and biological yields due to 100kg N ha-1 was 39.03, 23.43 and 28.89, respectively compared to 60kg N ha-1. A significant increase in N, P and Zn content and their uptake was recorded under the application of 80, 100 and 120kg N ha-1 compared to 60kg N ha-1 but 120kg N ha-1 was found statistically at par with 100kg N ha-1. Protein content in grain and chlorophyll in leaves increased significantly with successive increase in nitrogen doses upto 100kg ha-1.Keywords
RGR, NAR, DAS, LAI, Maize.References
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- Effect of Rhizobium, Different Levels of Phosphorus and Sulphur on Growth and Yield of Vigna radiate L. Cv. PUSA BESAKHI
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Authors
Affiliations
1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
Source
International Journal of Agricultural Sciences, Vol 13, No 2 (2017), Pagination: 390-402Abstract
The experiment was laid out in a Factorial Randomized Block Design with twelve treatments and replicated thrice. Results indicate that the seed inoculation with Rhizobium showed some good results increasing numbers of nodules and uptake of nutrients due to inoculation. Significant effects were observed in plants growth attributes due to presence of phosphorus and uptake of phosphorus increased due to presence of sulphur @ 20 kg ha-1 ultimately resulting in good yield. However, plant heights (66.00cm), Number of branches plant-1 (4.82), Number of nodules plant-1 (5.83), Number of grains pod-1 (12.56), test weight (51.03 g) and grain yield (12.39 q/ha) were found significantly affected by the application of Rhizobium inoculation, application of 45 kg phosphorus through DAP and 20 kg sulphur through Gypsum ha-1. Cost benefit ratio was also found (2.22) on higher side.Keywords
Mungbean, RBD, Rhizobium, Sulphur, Plant Parameter.References
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Authors
Affiliations
1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
Source
International Journal of Agricultural Sciences, Vol 14, No 1 (2018), Pagination: 34-45Abstract
A field experiment was conducted at Bhagwant University, Ajmer during Rabi, 2016-17 on loamy sand soil, which consisted of 4 fertility levels (control, 50, 75 and 100% RDF) and 5 foliar spray (water spray, 2% urea, 3% urea, 2% DAP and 2% KCl spray at tillering and flowering) there by making 20 treatment combinations were tested in Randomized Block Design with three replications. Results indicated that application of 100% RDF significantly increased the plant height at harvest, number of tillers per meter row length at 90DAS and at harvest, dry matter accumulation per meter row length, number of spikes per plant, spike length, seeds per spike, yields (seed, straw and biological), total uptake of nitrogen and potassium and net returns over preceding levels. Whereas, plant height at 60, 90 DAS, total number of tillers per meter row length at 60 DAS and potassium concentration in seed and straw and total uptake of phosphorus increased significantly upto 75% RDF. However, in respect of plant height at 30 DAS, chlorophyll content and harvest index and the treatments 50 to 100% RDF remained almost same. Results further indicated that among foliar spray treatments, application of 2% urea as foliar spray being at par with 2% DAP, 3% urea and 2% KCl spray, significantly increased plant height, total number of tillers per meter row length, dry matter accumulation per meter row length, chlorophyll content in leaves, spike per plant, number of seeds per spike, spike length, yields (seed, straw and biological), protein content, nitrogen, phosphorus and potassium concentration in seed and straw, total uptake of nitrogen, phosphorus, potassium and net returns over water sprayed control. Application of 75% RDF with 2% urea spray proved to be the best treatment combination in terms of number of tillers per meter row length and seed yield.Keywords
RDF, Biological Control, Spray, Protein, Barley.References
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