Journal of FARM SCIENCES, Vol 26, No 1 (2013)

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Productivity potentials of Timanhal micro-watershed soils

K.N. Sumithra, S.L. Budihal, S.G. Patil, M.A. Bellakki, B.K. Desai

Abstract


Productivity potentials of soils of Timanhal micro-watershed, Kushtagi Taluk of Karnataka state was carried out. Both red and black soils occur in the micro-watershed. The soils were shallow to deep in depth, reddish brown to grey in colour, sandy clay loam to clay in texture, neutral to moderately alkaline in reaction, low to medium in organic carbon, low to moderately high in cation exchange capacity. The productive potential indices were derived from the ratings assigned individually for each of the parameters. The soil moisture and drainage were the most deciding parameter for deriving the productivity potentials of the soils of the micro-watershed. Moderately deep red loamy soils, moderately deep calcareous red loamy soil, moderately deep calcareous red clayey soil and deep calcareous black soils had average productivity class. Deep red loamy soil with rock outcrops and moderately deep calcareous black soil with slightly salinity had poor productivity class. While, moderately deep calcareous black soil with saline-sodic and shallow calcareous black soil with saline-highly sodic had extremely poor category due to their inherent limiting physico-chemical properties.

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