اعلانات هامة

The objectives of the work can be summarized by study the effect of gypsum ,zeolite and organic matter on the characters of saline-alkaline soils, Sorghum planted in two soils with different salinity at GCSAR's Al-Mreiya Research Station in Deir-Ezzor province in the Eastern part of Syria.

The results at the end of the season shows decreasing in soil ECe under the effect of  adding ameliorative materials, and the most ECe decreased the most rate of applying gypsum, zeolite and organic matter decreased. The treatment of organic matter (40 Tha) achieves superiority on the other treatments  in decreasing soil salinity by 22.3 and 24.8% compared to control in both soils ( middle and high salinity) in addition to the decrease in pH and soil content of ions.

As aresult of  high CEC (Exchangeable capacity )  to the zeolite and organic matter. And gypsum rich in calcium that led to exchange Ca with Na on soil and lose Na . Subsequently, the decreased in ESP reach to 28.4% in zeolite treatment (30 Tha) in middle salinity soil, and 20.6 % to gypsum treatment (30 Tha) and organic matter treatment (40 Tha) comparative the control in high salinity soil.

And observed increased on wet and dry fodder production of sorghum plants under the effect of ameliorative additive. And the yield increased with the increased of additive ratio of  ameliorative materials. And in the middle salinity soil the yield is double in high salinity soil. Because of the observed amelioration in some soil characters. Where organic matter treatment (40 Tha) record incorporeity superlative comparative with the other treatments reached the weight of wet fodder production 24.7 and 25.3 % in both soils ( middle and high salinity) comparative with control.

The static analysis shows incorporeity superlative to organic matter treatment (40 Tha) in all plant and soil indicators comparative with zeolite and gypsum treatments adding in two ratio. And there is no incorporeity difference between zeolite and gypsum treatments  additive in same ratio.

Key words: Sorghum, saline-alkaline soils, gypsum, zeolite, organic matter.

بهدف دراسة تأثير الجبس والزيوليت والسماد العضوي (البلدي) على خصائص الترب المتأثرة بالملوحة والقلوية تمت زراعة الذرة البيضاء في تربتين منفصلتين ومختلفتين في الملوحة ( متوسطة الملوحة وعالية الملوحة ) في موقع المريعية الثالث التابع لمركز البحوث العلمية الزراعية بحوض الفرات الأدنى.