Effect of inorganic and bio-fertilizers on yield attributes, yield and economic of summer groundnut Arachis hypogaea L.

Abstract

A field experiment entitled, “Effect of inorganic and bio-fertilizers on yield attributes, yield and economic of summer groundnut (Arachis hypogaea L.)” was conducted at PG Research Farm, Agronomy Section, R.C.S.M. College of Agriculture, Kolhapur during summer, 2019. The experiment was laid out in factorial randomized block design (FRBD) with three replications and nine treatment combinations of three inorganic fertilizer levels viz., F1-75% RDF (18.75:37.5:0 kg ha-1), F2-100% RDF (25:50:0 kg ha-1), F3-125% RDF (31.25:62.5:0 kg ha-1) and three bio-fertilizers levels viz., B1- Control, B2- Rhizobium spp. + PSB (Lignite based), B3- Rhizobium spp. + PSB (Liquid based). The application of 100% of RDF ha-1 was at par with 125% of RDF ha-1 significantly over 75% RDF ha-1 in respect of recording higher value of yield attributes and yield viz., number of pods plant-1, weight of pods plant-1 (g), dry pod yield (q ha-1), dry haulm yield (q ha-1), biological yield (q ha-1), shelling (%), weight of 100 kernels (g), sound mature kernel (%) and harvest index (%). The dual seed inoculation of Rhizobium spp. + PSB (Lignite based) as well as Rhizobium spp. + PSB (Liquid based) in respect of recording higher value of yield attributes and yield viz., number of pods plant-1, weight of pods plant-1 (g), pod yield (q ha-1), dry haulm yield (q ha-1), biological yield (q ha-1), shelling (%), weight of 100 kernels (g), sound mature kernel (%) and harvest index (%). The gross monetary returns and net monetary returns were higher due to application of 125% of RDF ha-1 which was at par with 100% of RDF ha-1 and dual seed inoculation of Rhizobium spp. + PSB (Lignite based) significantly higher over control and at par with dual seed inoculation of Rhizobium spp. + PSB (Liquid based).