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U. VEDADRI, M.V.S. NAIDU*, V. MUNASWAMY AND A.V. NAGAVANI
Department of Soil Science and Agricultural Chemistry, S.V. Agricultural College,Acharya N.G. Ranga Agricultural University, Tirupati, Andhra Pradesh – 517 502, India.
A survey was undertaken in Chillakur mandal of SPSR Nellore district to evaluate the suitability of soils for rice, groundnut, sunflower and sesame crops. These soils belongs to Entisols and Inceptisols. Pedons 1, 3 and 4 (Typic Ustorthent), showed texture, organic carbon and shallow depth as major limitations. Organic carbon and pH are the major limitations in pedon 2 (Typic Haplustept). Pedons 5 and 6 (Typic Haplustept) exhibited organic carbon as major limitation whereas pedon 7 (Typic Ustipsamment) had texture and organic carbon as major limitations. The limitation levels of the land characteristics varied from crop to crop. The soil-suitability classes can be improved if the correctable limitations (soil fertility characteristics) were altered through soil amelioration measures. On the basis of soil potentials and constraints, suitable management practices were suggested to achieve sustainable yields in these crops grown on these soils.
Crop suitability, Land Evaluation, Limitations, Potentials.