Effect of enhanced N, P, K and Zn fertilizer on growth, yield and economics of wet seeded rice under Tamirabarani command area

Abstract

A field experiment was conducted at Agricultural College and Research Institute, Killikulam, Tamilnadu, during 2016­2017, to study the effect of enhanced N, P, K and Zn fertilizer on growth, yield and economics of wet seeded rice under Tamirabarani command area. Among different treatments, application of 150% recommended dose of N, P, K and Zn coupled with concurrent growing of green manure and its incorporation at 30 DAS (T9) resulted in higher growth, yield and net return, it was comparable with the application of 125% recommended dose of N, P, K and Zn coupled with concurrent growing of green manure and its in-situ incorporation at 30 DAS (T8). Highest benefit : cost ratio was recorded with the treatment T8.