Abstract

Based on detailed soil survey of the Tamil Nadu Agricultural University main campus farm, six series namely Palathurai (Pth). Somayanur (Smy), Peelamedu (Plm). Perianaickanpalayam (Pyk), Panaimarathupatti (Pmt) and Chavadiparai (Cvp) series were identified and mapped by the detailed soil survey. According to USDA system of soil taxonomy; the soils were classified as :.Pth and Smy Typic Haplustalfs, Plm Typic Pellusterts, Pyk Typic Chromusterts, Pmt Vertic Ustifluvents and Cvp Typic Rhodustalfs. Under the different interpretative groupings viz., land capability classification, storie index rating, soil and land irrigability, productivity rating and potential productivity rating of the soils of the farm, Smy and Pyk series were adjudged to be the best productive soils. The co-efficient of improvement values revealed that there was high scope to enhance the productivity of all these soils through extra investment.

Keywords: Detailed Soil survey, soil taxonomy, soil series, interpretative groupings, land capability, soil rating.