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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(9): 431-439
DOI: https://doi.org/10.20546/ijcmas.2019.809.052


Eco-physiology and Economics of Green Gram and Black Gram as Influenced by Sowing Dates in Tropical Summers
Sritama Biswas1*, Ananya Chakraborty1, Srijani Maji1 and Pintoo Bandopadhyay1
Department of Agronomy, Bidhan Chandra KrishiViswavidyalaya, Mohanpur-741252, Nadia, West Bengal, India
*Corresponding author
Abstract:

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.


Keywords: Green gram, Black gram, Sowing dates, Phosphate, Eco-physiological characters, Equivalent yield, Harvest index, Economics
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How to cite this article:

Sritama Biswas, Ananya Chakraborty, Srijani Maji and Pintoo Bandopadhyay. 2019. Eco-physiology and Economics of Green Gram and Black Gram as Influenced by Sowing Dates in Tropical Summers.Int.J.Curr.Microbiol.App.Sci. 8(9): 431-439. doi: https://doi.org/10.20546/ijcmas.2019.809.052