SOIL SITE SUITABILITY EVALUATION FOR RICE IN SOILS OF TIRUPATI DIVISION OF CHITTOOR DISTRICT, ANDHRA PRADESH

M.M. MOHAN¹*, T. GIRIDHARAKRISHNA², M.V.S. NAIDU³, G. PRABHAKARA REDDY⁴, K.V. RAMANA^5
1S.V Agricultural College, Tirupati, 517502, Acharya N. G. Ranga Agricultural University, Guntur, 522101, Andhra Pradesh, India
²Director of Research, Acharya N. G. Ranga Agricultural University, Guntur, 522101, Andhra Pradesh, India
³Professor and Head, Department of Soil Science, S.V. Agricultural College Tirupati, 517502, Acharya N. G. Ranga Agricultural University, Guntur, 522101, Andhra Pradesh, India
⁴Associate Dean, College of Agriculture, Mahanandi, Acharya N. G. Ranga Agricultural University, Guntur, 522101, Andhra Pradesh, India
⁵Acharya N. G. Ranga Agricultural University, Guntur, 522101, Andhra Pradesh, India
* Corresponding Author : its_madan@yahoo.co.in

Received : 01-10-2020     Accepted : 26-10-2020     Published : 30-10-2020
Volume : 12     Issue : 20       Pages : 10298 - 10300
Int J Agr Sci 12.20 (2020):10298-10300

Academic Editor : Geographic information system, Moderately suitability, Soil-site characteristics
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Acharya N. G. Ranga Agricultural University, Guntur, 522101, Andhra Pradesh, India
Author Contribution : All authors equally contributed

The weighted averages of soil-site characteristics viz.,climate, wetness, topography, physical soil characteristics (texture, depth), fertility characteristics (CEC, base saturation and pH), salinity and alkalinity were summarized and correlated with optimum soil-site requirements for rice cultivation and assessed based on degree of limitations. The soils of pedon 1, 2, 3, 4, 5, 6, 7 and 10were grouped under moderately suitable (S2f), pedon 7 and 9 were grouped under S2sf and S2csf, respectively. Based on spatial assessment using Geographic information system (GIS) tolls indicated that the 80.9 percent soils representing 26831 ha were under S2f and 8.5 and 10.6 percent of study area representing 2806 and 3507 ha grouped under S2sf and S2csf, respectively.

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