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Effect of degree of base saturation and phosphate enrichment on the utilization of soil and fertilizer phosphorus in alluvial, black and red soils of India


, : Effect of degree of base saturation and phosphate enrichment on the utilization of soil and fertilizer phosphorus in alluvial, black and red soils of India. Technology 8(3-4): 272-276

Using Neubauer's technique the availability to rye of added and soil P in samples of surface soils was assessed in relation to the soil base saturation. The amount of added P utilized decreased in the order: K-soil > Ca-soil > 50% Ca-soil >50% K-soil > H-soil. Total P uptake increased with increasing degree of base saturation. A critical degree of P saturation is suggested below which the fixation of applied P is encouraged and above which the uptake of soil P is increased.

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