Effect of organic and inorganic sources of nutrients on growth characters and yield of groundnut(Arachis hypogaeaL.)

Abstract

A field experiment was conducted during kharif seasons of two consecutive years 2011 and 2012 at S. K. N. College of Agriculture, Jobner to study the effect of integrated nutrient management levels on growth parameters and yield of groundnut (Arachis hypogaea L.). The eight levels of organic manures and fertilizer [(control (T0), RDF 25 kg N + 45 kg P2O5 kg/ha (T1), FYM @ 15 t/ha (T2) FYM @ 7.5 t/ha + ½ RDF (T3), poultry manure @ 6 t/ha (T4), poultry manure @ 3 t/ha + ½ RDF (T5), vermicompost @ 5 t/ha (T6), vermicompost @ 2.5 t/ha+½ RDF (T7)] and four levels of iron [(0.0 (Fe0), 5.0 (Fe5), 10.0 (Fe10) and 15.0 (Fe15)] were compared. Significant effect of manures and fertilizers was observed on pooled basis on plant height, dry matter accumulation, branches per plant, dry weight of nodules, pod and stover yield, whereas harvest index in groundnut remained unaffected during both the years on pooled basis. Application of poultry manure @ 3 t + ½ RDF (T5) produced significantly higher pod and stover yield of groundnut over rest of the treatments during both the years. Iron levels significantly increased the pod and stover yield of groundnut over control up to 10 kg/ha but was found at par with 15 kg Fe/ha during both the years as well as in pooled analysis.