Assessing the indigenous nutrient supplying capacity of soils to Soybean in Vertisols of Northern Karnataka

A study was undertaken in the farmer fields growing soybean in Northern Karnataka with the following objectives 1. To assess the fertility status of soils in soybean growing areas of Northern Karnataka and to study the response of soybean to major nutrients and response variability across spatial and temporal scale. 2. To study the nutrient uptake pattern, nutrient use efficiency and residual soil fertility through nutrient omission technique. 3. To create awareness among farmers for optimized nutrient use and best nutrient management practices for soybean

IPNI-2014-IND-531

Overview

The study was aimed at validating the Nutrient Expert® (NE) fertilizer decision support tool for soybean with the existing nutrient management practices, and determine soybean response to applied nutrients and seed inoculation in the Vertisols of northern Karnataka. Replicated on-station experiments were conducted at the Agricultural Research Station (ARS) of the University of Agricultural Sciences, Dharwad. Read more

Year of initiation:2014

Year of completion:2018

Interpretive Summary

2017

2016

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The study was initiated to determine the response of soybean to the application of major nutrients, and evaluate the performance of Nutrient Expert® (NE) Soybean over the existing state recommendation (SR) and the farmers' fertilizer practice (FFP). Two sets of on-station replicated experiments were conducted, one at the agricultural research station farm in Dharwad and the other at the university farm of UAS Dharwad.