RESIDUAL EFFECT OF ORGANIC SOURCES AND FERTILIZER LEVELS TO PRECEEDING MAIZE (Zea mays L.) ON THE PHYSIOLOGICAL PARAMETERS OF SUCCEEDING GROUNDNUT (Arachis hypogea L.)

Abstract

Direct and residual effect of integrated nutrient management in Maize-Groundnut crop sequence in Southern Telangana region†was conducted during kharif and rabi seasons of 2014-15 and 2015-16 at College Farm, College of Agriculture, Rajendranagar, Hyderabad, Southern Telangana.The soil of experimental site was sandy clay loam with pH of 7.6, Electrical conductivity 0.86 dSm-1, low in organic carbon (0.73 %), low in available nitrogen (217 kg ha-1) and medium in phosphorus (64 kg ha-1) and high in potassium (402 kg ha-1).The physiological parameters viz., leaf area index, leaf area duration and radiation use efficiency recorded significantly higher with integration of residual 50% RDF+50% RDN through urban compost (M5) and 100% RDF (S1) for succeeding groundnut on par with residual 50% RDF+50% RDN through FYM (M3) and 100% RDF (S1) for succeeding groundnut, while growth analysis viz., LAI, LAD and RUE were not significantly influenced at 30 days after sowing
during both the years.