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 |
A field experiment was conducted at the Agricultural College Farm, Bapatla, to study the effect of in-situ incorporation of dhaincha, sunnhemp and pillipesara green manure at 60, 45 and 30 DAS. Highest biomass production was recorded from 60 day aged dhaincha. Soil organic carbon content 45 days after of incorporation of green manures (30 DAS of maize) was recorded maximum (0.73%) from dhaincha incorporated plot which was significantly superior to sunnhemp and pillipesara. Age of incorporation of green manure also had a significant effect and maximum organic carbon content (0.75%) was recorded at 60 days age of incorporation of green manures. A similar trend in organic carbon content was observed after harvest of maize which was decreased. The pH of the soil 30 DAS as well as at harvest and bulk density at harvest of maize did not vary significantly either due to incorporation of different green manures or their ages of incorporation. Among all the treatments tried, highest return per rupee investment (Rs 4.01) was obtained where dhaincha was incorporated at 45 days.
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