Status of major nutrients under arecanut based cropping systems in the coastal region of Udupi district

Abstract

A GPS based soil survey was carried out in the farmer’s field in three Taluks of Udupi district viz., Udupi, Kundapura and Karkala taluks during the period of 2019 to 2021 in order to knowthe “Status of major nutrients under arecanut based cropping systems in the coastal region of Udupi district” by using Arc GIS 10.4 software. Surface soil samples were collected from soils under arecanut based cropping systems in Udupi district and were analysed for electro-chemical and chemical properties. Study revealed that soils are extremely acidic to strongly acidic range with soil pH ranged from 4.03 to 6.60, organic carbon status is medium to high with normal electrical conductivity. Analytical results showed that available nitrogen and potassium status were found low to medium, whereas, available phosphorus status was medium to high. The exchangeable calcium and magnesium were found to deficient in soils under arecanut based cropping systems, whereas soils were low in available sulphur.