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 |
Field experiments were conducted during Kharif 2007 and 2008 in Typic Ustifluvents soil to study the response of lowland rice to organics and mineral N tested at N equivalence. The treatments consisted of addition of different organics viz., composted coir pith (CCP), green manures (GM), sugarcane trash compost (STC), vermicompost (VC), poultry manure ( PM) and FYM applied at 100% N and combination of above organics @50% N and urea@50% N besides 100% N as urea and control. The results revealed that addition of organics or mineral N or both significantly improved growths, yield characters and rice yield over control in both years. The highest grain yield (5067, 5050 kg ha-1) and straw yield (6490, 6398 kg ha-1) was noticed with vermicompost (50% N) + urea (50% N) which was on par with poultry manure (50% N) + urea (50% N) but superior to rest of the treatments. Growth and rice yield was more with 100% mineral N compared to 100% N with organics alone. Similar influence was noticed with yield attributes. The relative efficiency was in order of IPNS > Fertilizer N > organics. Among organics VC > PM > GM >FYM > STC > CCP.
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