Effect of Integrated Use of Organic and Inorganic Sources of Nutrients and Biofertilizers on Drymatter Production, N, P, K , S and Micronutrient Uptake in Maize - Onion Cropping System

摘要

A field experiment was conducted in kharif (maize) and rabi (onion) during 2009-10 to study the effect of integrated use of organic and inorganic sources of nutrients and biofertilizers on yield and quality in maize-onion cropping system in Alfisols of Hyderabad. The results revealed that application of 75% RDF along with 25% N or P substituted through vermicompost or poultry manure with addition of azotobacter or phosphorus solubilising bacteria recorded the highest drymatter, N, P, K, S and micro nutrient uptake in maize grain during kharif season whereas experimental data on rabi onion grown in two different situations like fertilized and unfertilized to know the cumulative and residual effect of kharif maize treatments revealed that the fertilized onion produced highest drymatter, N, P, K, S and micronutrient uptake when compared to unfertilized one. With in fertilized and unfertilized onion INM treatments showed highest drymatter, N, P, K, S and micronutrient uptake compared to other treatments.