Abstract

G. S. Kalwania* and Radhey Shyam

Geochemical processes are identified as controlling factors of groundwater chemistry, including chemical leaching and nitrate contaminations. These geochemical processes are analyzed using major physico-chemical parameters of ground water from Sikar district. The analysis indicated that nitrate, phosphorous and potassium concentrations in fertilizers consumed area (FCA) have been observed greater than none fertilizers consumed area (NCA). These increased level has been observed after fertilizers application in the FCA, thereby suggesting the need for prevent excessive fertilizer uses, soil conservation, balanced fertilization, uses of slow-release fertilizers and best management for manure storages. No appreciable changes in water quality parameters have been pointed out in NCA during same period of application.

variation; nitrate; fertilizer applications; graphical plots

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