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Researcher Singh, Bahadur
Advisor Kaushik, M. K.
Source KrishiKosh-Indian National Agricultural Research System
Content type Text
Educational Degree Master of Science (M.Sc.)
Publisher MPUAT
File Format PDF
Language English
Subject Domain (in DDC) Technology ♦ Agriculture & related technologies ♦ Animal husbandry
Subject Keyword Seed Rate ♦ Nitrogen ♦ Yield ♦ Quality ♦ Summer Fodder ♦ Sorghum ♦ Effect of Seed Rate and Nitrogen On Yield and Quality of Summer Fodder Sorghum [sorghum Bicolor (l.) Moench] ♦ Agronomy
Abstract A field experiment entitled “Effect of seed rate and nitrogen on yield and quality of summer fodder sorghum [Sorghum bicolor (L.) Moench]†was conducted at Instructional Farm, Rajasthan College of Agriculture, MPUAT, Udaipur during summer 2011. The experiment consisted of 16 treatment combinations comprising four seed rates (30, 35, 40 and 45 kg ha-1) and four nitrogen levels (40, 60, 80 and 100 kg ha-1). The experiment was laid out in factorial randomized block design with three replications. The experimental soil was clay loam in texture, slightly alkaline in reaction, medium in available nitrogen (276.0 kg ha-1), phosphorus (24.80 kg ha-1) and potassium (379.50 kg ha-1). The results revealed that seed rate of 40 kg ha-1 recorded maximum dry matter accumulation at 40 DAS and at harvest. It also recorded the highest plant height at 40 DAS (56.07 cm) and at harvest (206.63 cm), stem girth (1.04 cm), leaf/stem ratio (0.39), leaf weight plant-1(43.82 g plant-1) and no. of leaves plant-1 (11.30) over rest ones. Maximum significant green (466.45 q ha-1) as well as dry fodder (163.23 q ha-1) yield was recorded with seed rate of 40 kg ha-1which was found significantly superior to seed rate of 30 kg ha-1 and 35 kg ha-1 but was at par with 45 kg ha-1. The per cent increase in green and dry fodder yields of this seed rate over seed rate of 30 kg ha-1and 35 kg were 26.82, 15.64 and 21.30, 12.78, respectively. Seed rate of 45 kg ha-1 recorded significantly higher N (205.55 kg ha-1) and P (36.02 kg ha-1) uptake over 40, 35 and 30 kg seed rate ha-1but N and P content did not influence significantly by increased seed rate. Crude protein, crude fibre, ether extract, mineral ash, TDN and chlorophyll and HCN content did not significantly influence by increased seed rate. Seed rate of 40 kg ha-1 recorded NFE content (51.39 per cent) over rest of the seed rates except 45 kg ha-1. Significant and highest gross returns (51310 Rs ha-1), net returns ( 36538 Rs ha-1 ) and B/C ratio (2.46) were obtained with seed rate of 40 kg ha-1 as compared to 30 kg ha-1 and 35 kg ha-1 and it was found at par with 45 kg ha-1of seed rate with respect to these parameters. Application of 80 kg N ha-1 recorded significantly higher plant height, number of leaves plant-1, and leaf stem ratio at harvest over 40 and 60 kg N ha-1 and was found at par with 100 kg N ha-1. However, application of 100 kg N ha-1 recorded significantly higher stem girth and leaf weight plant-1 at harvest over 40, 60 and 80 kg N ha-1. Application of 80 kg N ha-1 recorded significantly higher dry matter accumulation 40 DAS and at harvest over 40 and 60 kg N ha-1 and found at par with 100 kg N ha-1. Application of 80 kg N ha-1 recorded significantly higher green and dry fodder yield over 40 kg and 60 kg N ha-1 and was found at par with 100 kg N ha-1. The per cent increase in green and dry fodder yield due to 80 kg N ha-1 over 40 and 60 kg N ha-1 were 29.08, 15.88 and 23.20, 13.37, respectively. Application of 100 kg N ha-1 recorded significantly higher nitrogen content and its uptake, crude protein, ether extract and mineral ash content over all the lower doses of nitrogen. Contrary, the highest crude fibre, TDN and NFE were obtained with 40 kg N ha-1. Application of 100 kg N ha-1 recorded maximum production of crude protein, crude fibre, mineral ash , ether extract, TDN and NFE. Application of 100 kg N ha-1 recorded significantly higher HCN content over 40, 60 and 80 kg N ha-1 at 40 DAS and harvest, likewise higher significant chlorophyll content was also recorded under 80 kg N ha-1 over 60 and 40 kg ha- 1which was found at par with 100 kg N ha-1. Application of 80 kg N ha-1 recorded significantly higher gross returns, net returns and B/C ratio over 40 and 60 kg N ha-1 but was found at par with 100 kg N ha
Educational Use Research
Education Level UG and PG
Learning Resource Type Thesis
Publisher Place Udaipur
Size (in Bytes) 312.03 kB
Page Count 72