Improvement of some Chemical Properties and Productivity of some Salt-affected Calcareous Soils [electronic resource].

Includes references.

Disturbes soil columns experiment using two salt-affected calcareous soils was conducted to evaluate the effect of elemental sulphur (S) and farmyard manure (FYM) amendments as well as intermittent leaching using waters of different salinities on the improvement some chemical properties ,yield and nutrient uptake of barley (Hordeum vulgare) plant. Results pertaining soil chemical properties indicated that. the salt removed by leaching the investigated soils was obviously pronounced. The electrical conductivity (ECe) values of the saturated extract of the untreated Maryout and Ras Sudr soils, after leaching with waters of different salinities were sharply reduced by 81 and 83%, respectively, indicating the high efficiency of leaching process. However, ECe val ues of the amended soils with Sand FYM were fairly lower than that of control treatment by about 22 and 24% for Maryout soil and 13 and 17% fOf Ras Sudr soil, respectively. More or less, similar trend was obtained for the soluble ions with the height reduction for CI- and Na+ ions on the other hand, an obvious reduction in the ESP value of the amended and leached Maryout soil turning it from saline sodic to non saline non sodic one.

Summary in Arabic.

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