Effect of soil amendments and anhydrous ammonia application and their interactions on some soil properties and wheat productivity under salt affected soil conditions [electronic resources].

Includes references.

Rehabilitation of saline-sodic soils is governed by a lot of management schemes which involve mainly addition of chemical ameliorates as gypsum and sulphuric acid "SA". The recent studies recommended the use of practices package that lead to improve soil health and reduce production costs besides increasing soilwater- fertilizer unit uses. Therefore, under saline-sadie soil conditions the current study was planned to compare the effect of gypsum application (75% of gypsum requirements) and sulphuric acid (20% of the applied gypsum) under three levels of N-fertilizer, 70, 90, 110 kg N/fed., in form of anhydrous ammonia "AA" on soil salinity- sodicity status and wheat (Triticum aestivum L., Sakha 93) production. A split block experimental design with three replications was used to evaluate the tested treatments and their interactions. Irrigation water amount during winter growing season was measured to assess water productivity (WP) of wheat crop under various soil treatments. Results showed almost significant effect of soil amendments application and different N-levels and their interactions on the studied soil parameters (ECe & SAR), wheat yield and its attributes, nitrogen use efficiency (NUE), as well as water productivity.

Summary in Arabic.

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