Effect of tillage practices and fertility levels on growth analysis, yield of clusterbean and residual soil nutrients

Abstract

A field experiment was conducted during kharif seasons of 2016 and 2017 at the Research Farm, College of Agriculture, Gwalior (M.P.) to study the effect of tillage practices and fertility levels on growth analysis parameters, yield of clusterbean and residual soil nutrients. The treatments comprised of four levels each of tillage system and fertility levels were evaluated in split plot design with three replications. The AGR, CGR, RGR and NAR increased upto maximum extent when minimum tillage (MT) having one cultivation plus 3 t/ha wheat residue (WR). The conventional tillage with three cultivations record the lowest growth analysis parameters. The total biomass production under MT + WR was upto 59.08 q/ha over the conventional tillage (51.29 q/ha). The application of 100% RDF (N20P40K20) augmented all these growth analysis parameters significantly over the lower NPK levels. The total biomass produced was upto 59.0 q/ha over zero NPK (50.8 q/ha). The residual available N, P and K after harvest of clusterbean was found highest under 100% RDF (recommended dose of fertilizers).