اعلانات هامة

The research has been applied in tow year seasons 2005- 2007 in the 3rd Al-Mereia'a zone in the scientific agriculture research center in Dier Al-Zour aiming to study the effect of gypsum and agricultural sulphure in different rates for improving some chemical and fertilizations productivity of barley crop in Dier Al-Zour conditions The research has been applied using th design of total random sectors where they included for terins of chemical soil rates in addition of control as follows:

1- Adding gypsum in rate of(5) tons h 

2- Adding gypsum in rate of(10) tons h 

3- Adding agricultural sulphur in rate of (1) ton. and adding

manufactured sulphur in rate of (2) tones h in addition to the control benefit without adding chemical soil terms. The process

has been executed and following the growth of plants. At the end of May in every season the harvest of all the grop has been done for all experimental sectors of the studied procedures then samples of required soil and necessary studies of local barley plant have been taken in dealings. At the end of implementing our research we have come to these results: 

1 - Reduction of the soil PH moderation rate and the electric

transfer of the severe depths of soil(ECE)(0-20)C.M. the nitrogen of cereals in dealing of adding agricultural sulphur in

rate of(2) tones h compared with the sample control. 

2- Apparent increase in the values of gypsum and nitrogen,

phosphorate available and the potassiun interchangeable in

to depths(0-30) C.M. Add that the increase of phosophrate and potassium in cereals in the process of adding agricultural

sulphur in rate of(2) tones h compared with the control. 

3- High success in the productivity of cereals and the efficiency of

water consumption. Increase of the quantities of nitrogen, phosophorate and potassium absorbed in the barley productivity in one area by adding (2) tons of agricultural

sulphur compared with the control. 

4- There are meaningful differences among the studies processes

for all those studied remarks (soil and plant) except that remark of interchangeable cabability add that the rate of nitrogen in cereals resulting from the activity of adding the chemical soil traits such as gypsum and agricultural sulphur. 

Keywords: Soil chemical amendents, fertilization and chemical characteristics, barely crop yield.

نفذ البحث خلال موسمين متتاليتين (2005-2006) م في موقع المريعية الثالث في مركز البحوث العلمية الزراعية بدير الزور بهدف دراسة تأثير الجبس والكبريت الزراعي بمعدلات مختلفة على تحسين بعض الخواص الكيميائية والخصوبية للطبقة السطحية من التربة وإنتاجية محصول الشعير في ظروف محافظة دير الزور، ولقد نفذ البحث باستخدام تصميم القطاعات العشوائية الكاملة حيث تضمنت أربع مصلحات من معدلات التربة الكيميائية بالإضافة لمصلحة الشاهد و هي: