Abstract
A revision was undertaken to draw correlation between nutrients available in soil and special indices in chickpea and cotton in the cram area of Kurnool revenue division in Kurnool district of Andhra Pradesh by means of remote sensing plus GIS techniques. A significant and positive correlation was observed between NDVI and available nitrogen during 2017-18 whereas both OC and nitrogen available had considerable positive correlation with NDVI during 2016-17 in chickpea. A significant and positive correspondence was recorded between the NDVI and organic carbon and nitrogen available in cotton during 2016-17. However, insignificant correlation was observed among NDVI and organic carbon or available nitrogen during 2017-18 under cotton cropping.
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