Changes in the contents of some nutrients in pepper fruits and soil test levels due to phosphogypsum applications [electronic resource].

Includes references.

Phosphogypsum (PG), the by-product of wet acid production of phosphoric acid from rock phosphate, was found to be effective as a soil conditioner for sodic soils. The use of phosphogypsum has increased dramatically in recent years. The study was established on sandy loam soil;El-Salhiya soil. Four rates of phosphogypsum (PG) (0, 25, 50 and 100% gypsum requirement) were applied to plots to study the effect ofPG rate on either P, N, K, Fe, Mn, Zn and Cu in pepper fruit or their status in soil. The obtained data reveal that the concentration of available N, K. P, Fe, Mn, Zn and Cu in either soil or uptake by pepper fruits increased with increasing phosphogypsum rate up to the 906 kg fed-1.The coefficient transfer of N, P, K and Fe was decreased with increased PG rate, but that of Mn increased. The coefficient transfer of Zn and Cu showed no marked trend with increased PG rate

Summary in Arabic.

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