Vol. 12, Issue 3 (2023)

Author(s):
Dileep R, Jayaprakash R, Dhananjaya BC, Chethan Babu RT, Vinay Kumar M, Akshay Kumar Kurdekar and Sahana

Abstract:
A field experiment was conducted during Kharif 2019 at ZAHRS, Brahmavar, Udupi to know the effect of integrated nutrient management practices on soil properties of paddy in coastal acid soil of Karnataka. The experiment had 11 treatments and was triple-replicated in a randomised complete block design. The treatment comprised of recommended dose of fertilizer and absolute control for comparison along with supplemental addition of 50 and 25 percent of recommended dose of nitrogen applied through poultry manure, vermicompost, FYM, gliricidia and eupatorium. Application of 50 percent RDN through fertilizer and 50 percent RDN through poultry manure recorded significantly higher available phosphorus, secondary and micronutrients in soil after harvest of paddy crop. However, higher available soil nitrogen recorded in treatment applied with 50 percent RDN through fertilizer and 50 percent RDN through gliricidia and higher available soil potassium recorded in treatment applied with 50 percent RDN through fertilizer and 50 percent RDN through eupatorium. Application of 50 percent RDN through fertilizer and 50 percent RDN through vermicompost recorded significantly higher microbial load. Significantly higher total nitrogen, phosphorus, potassium and sulphur uptake was observed in 50 percent RDN through fertilizer + 50 percent RDN through poultry manure.