دراسة تباين كفاءة استعمال و امتصاص عنصري الآزوت و الفوسفور و الغلة الحبية تحت ظروف الزراعة المطرية و الري التكميلي لدى بعض أصناف الشعري المحلية

العناوين الأخرى

Study of variation in the efficiency of the use and absorption of nitrogen and phosphorous elements and the grain yield under the conditions of rain-fed agriculture and supplementary irrigation for some local barley verities

المؤلفون المشاركون

العودة، أيمن الشحاذة
الإدلبي، ريم

المصدر

المجلة العربية للبيئات الجافة : مجلة دورية علمية محكمة

الناشر

المركز العربي لدراسات المناطق الجافة و الأراضي القاحلة

تاريخ النشر

2021-06-30

دولة النشر

سوريا

عدد الصفحات

12

التخصصات الرئيسية

العلوم الزراعية

الملخص الإنجليزي

The research was carried out at Abi Jarash Farm, Faculty of Agriculture, University of Damascus (Syria), over two growing seasons (2017/2018 and 2018/2019), to evaluate the performance of seven locally certified barley varieties under rainfed and supplementary irrigation conditions, to determine the most efficient varieties in utilization and absorption of nitrogen and Phosphorus elements which are available in the soil.

The experiment has been laid according to the design of the complete randomized blocks (RCBD), with three replications.

The results showed that average nitrogen use efficiency and the nitrogen uptake efficiency were significantly higher during the second growing season under rainfed conditions in the barley cultivar Fourat5 (78.16 kg grains.

Kg nitrogen available in soil'1 and 1.93 kg total nitrogen.

Kg nitrogen available in soil*1, ha*1 respectively).

The mean average of phosphorous use efficiency and the average of phosphorus absorption efficiency were significantly higher during the first growing season under supplemental irrigation conditions in the two barley varieties Fourat5 and Fourat4 with significant differences between them (76.89,68.02 kg grains.

Kg phosphorous available in soil-1; 28.50, 28.85 kg total phosphorus ha-1, kg Phosphorous available in soil-1, ha-1).

The grain yield was significantly higher during the first growing season under supplementary irrigation conditions in the barley variety Fourat5 (5905 kg.

ha-1).

In general, the barley varieties Fourat5 and Fourat4 are considered as the most adaptive varieties to rainfed conditions in the targeted environmental conditions, more responsive to supplementary irrigation, more efficient in use of nitrogen and phosphorus and could maintain significantly higher grain yields compared to the other studied varities.

نوع البيانات

أوراق مؤتمرات

رقم السجل

BIM-1435515

• APA
• MLA
• AMA