Impact of integrated nutrient management on nutrient status and soil microbial population in chilli (Capsicum annuum L.)

Abstract

A field experiment was conducted on impact of INM on nutrient status and soil microbial population in chilli at College of Horticulture, Mudigere. The major nutrient availability in soil, nutrient content in chilli leaf and soil microbial population after the harvest of chilli was studied. The highest availability of major nutrients in soil N (307.67 kg /ha), P (60.17 kg /h) and K (118.55 kg/ ha), and the highest nutrient content in chilli leaf N (3.31%), P (0.65% and K (3.41%) were noticed with the application of Azospirillum + PSB + VAM + KSB + 50% RDF + MgSO4 + Micronutrient mixture (T12). Similarly the soil microbial population include were recorded maximum in the treatment T12. Thus integrated use of organic amandments (biofertilizers, FYM) along with chemical fertilizers not only produced highest and sustainable crop yield but also enhanced the efficiency of added fertilizers as well as fertility status of the soil.