National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Pulses constitute important protein supplements in diets for the resource poor tropics and in India. Green gram and black gram are popular summer pulses. Weather variations, either erratic or uncanny pre-monsoon rainfall, affect the summer crops and studies in optimum sowing window and crop performance comparison for black gram and green gram assumes importance. A field experiment was conducted during summer season of 2016 and 2017 at District Seed Farm, Bidhan Chandra KrishiViswavidyalaya, Nadia,West Bengal (22°56' N, 88°32' E, and 9.75 m AMSL).Green gram (C1) and black gram (C2) and three sowing dates on D1=14th March, D2=21st March, D3=28th March are compounded as main-plot treatments taking two phosphate levels sub-plot treatments of P2O5 40 and 60 kgha-1 as which were replicated thrice in split plot design to find out the optimum sowing dates. Legumes are phosphophilic and higher phosphorus levels are introduced to understand the role of higher phosphate to offset any depletion of yield beyond optimum sowing dates. Green gram yield was significantly highest (1012.42 kgha-1) on 21st March sowing with B:C ratio 2.26and declines beyond while green gram equivalent yield of black gram was found to be 894.25 kgha-1 on 28th March sowing having 1.99 B:C ratio.60 kgha-1 phosphate responded better for yield (906.56kgha-1). Green gram is recommended for 21st March sowing and black gram after 28th March with higher levels of phosphate.
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