Effect of application of different levels of N, K and Zn on yield and economics of groundnut in lateritic soil of Konkan

Abstract

A field experiment was conducted to study the “Effect of application of different levels of N, K and Zn yield and economics of groundnut crop in lateritic soils of Konkan” was conducted at Irrigation Scheme, Pangari Block of C.E.S., Wakawali during Kharif season of 2012 and 2013. The field experiment was laid out in split-split plot design comprising of 27 treatment combinations replicated in thrice. Main plots consisting of three levels of nitrogen application (12.5, 25 and 50 kg N ha-1). In sub plot, treatment comprised of three levels of potassium (15, 30 and 45 kg K2O ha-1) and sub-sub plot treatment comprised of three levels of zinc application (2.5, 5.0 and 7.5 kg Zn ha-1). The application of nitrogen at (50 kg ha-1) recorded the maximum net return and benefit cost ratio in both the years. In the year 2012, the maximum net returns and B:C ratio were recorded in the treatment K2 (30 kg K2O ha-1). On other hand the treatment K3 (45 kg K2O ha-1) recorded the highest net returns and B:C ratio in the year 2013. In respect to zinc levels the treatment Zn2 (5 kg ha-1) and Zn1 (2.5 kg ha-1) recorded the maximum net returns and B:C ratio in the year 2012. However, the highest net returns and B:C ratio were recorded with application of zinc at 7.5 kg ha-1 (Zn3).