Soil exchangeable cations: A geostatistical study from Russia

Abstract

In present study, geostatistical techniques was applied to assess the spatial variability of exchangeable cations such as; calcium (Ex-Ca²⁺), magnesium (Ex-Mg²⁺), potassium (Ex-K⁺) and sodium (Ex-Na⁺) in the tillaged layer in a Perm State Agricultural Academy Farm site in Perm region, West Urals, Russia. A 250x100 m plot (approximately 2.35 ha) was divided into grids with 25x25 m spacing that included 51 sampling points from 0-0.2 m in depth. Soil reaction (pH) was the least variable property while the Ex-K was the most variable. The greatest range of influence (237.6 m) occurred for Ex-Ca and the least range (49.7 m) for Ex-Mg.

Keywords

• exchangeable cations, spatial variability, site specific management

References

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