مدير المعهد الحالى

أ.د/ محمد إسماعيل

مدير معهد بحوث الأراضى والمياه والبيئة

إدارات المعهد المتعاقبة
من البداية حتى الآن

أ.د/ أحمد عيسى

مدير معهد بحوث الأراضى والمياه والبيئة الفترة: 3-2011 - 6-2011

مواقع صديقة

المكتبة القومية الزراعية
Egyptian National Agricultural Library
وزارة الزراعة وإستصلاح الأراضى
Ministry of Agriculture and Land Reclamation
مزيد من المواقع الصديقة

مواقع مفيدة

المركز القومى للبحوث
National Research Center
منظمة الأغذبة والزراعة بالأمم المتحدة
Food And Agriculture Organization OF The United Nations
كلية الزراعية جامعة عين شمس
Faculty of Agriculture Ain Shams University
مزيد من المواقع المفيدة

تابعونا على مواقع التواصل


أحدث البحوث المضافة

Azza. R. Ahmed and Shahien M.M( 2018). Improvement of Loamy Sand Soil and Potato Plant Productivity under Integrated Organic and Inorganic Nitrogen Fertilizers. Archives of agricultural sciences journal 1(1)11-26.
More about researches
Abd El-Naby, S. S. M.1 and M. A. Mahmoud 2( 2018). Enhancing Irrigation Water Productivity of Rice Using Irrigation Intervals, Transplanting Methods and Weed Control in North Nile DeltaJ.Soil Sci. and Agric. Eng., Mansoura Univ., Vol. 9 (1): 11- 20, 2018
More about researches

أحدث رسائل الماجستير
المضافة إلى الموقع

عبد الرحمن أمير عبده ( 2015).
الخمائر كاداه واعده لإنتاج الزيوت الميكروبيه.
Yeasts As Apromising Tool For Microbial Oil Production
More about researches
إيمان عبد المجيد زغلول( 2015).
كفــاءة الأســـمـدة النيتــروجينيــة فـي الأراضــي الملــوثــــة
Efficiency Of Nitrogen Fertilizers In Contaminated Soils
More about researches

أحدث رسائل الدكتوراه
المضافة إلى الموقع

محمد سعد عبد الستار رمضان( 2016).
علاج بعض الأراضي المصرية الملوثة بالعناصر الثقيلة باستخدام بعض النباتات المجمعة لهذه العناصر
Phytoremediation of Some Egyptian Soils Polluted with Heavy Metals
More about researches
أيمن حاكم سراج( 2015).
نمو ومحصول وامتصاص العناصر في الذرة متأثرة بالتسميد العضوي والحيوي تحت الظروف الملحية.
Growth, yield and nutrients uptake of maize as affected by organic and biofertilization under saline conditions
More about researches

El-Sherief, M.A.B.;E.M.S.Saad Man and S.M.S.El-Kalawy ( 2016). Critical level limitation of nitrogen for wheat plants cultivation in El-Gimmiza area.J. Soil Sci. and Agric. Eng., Mansoura Unv.,Vol 7 No.(7),July,487-492
Abstract: Wheat is an important Egyptian grain crop. Nitrogen have a major influence on wheat the productivity. The goal of N management program should be supplying enough N to achieve maximum profit from the crop. But any N not used by the wheat crop is potentially subjected to leaching, which pollutes groundwater and decreases the efficiency of N fertilization. The availability of Nitrogen affect by the soil properties, especially soil salinity, soil content of total calcium carbonate and particles size distribution of soil (soil texture). Also, some other important factors as soil-pH, soil organic matter content and cation exchange capacity of soil...etc. The aim of study to nitrogen critical level limitation of wheat crop under loamy soil through each of different nitrogen levels and obtained the maximum yield of production. Field experiment was carried out in El-Gimmiza Agricultural Researches Station Farm during winter season of 2012-2013 in Loamy soil. The experimental design was randomized complete blocks. Grain and straw yield for wheat crop were determined, soil available nitrogen was determined after harvesting. The obtained result observed that wheat grain plus straw yield was low at N1-treatment (5586 kg fed-1) and the highest one was at N3-treatment (7294 kg fed-1). Nitrogen critical level for wheat grain yield was N3-treatment (60 kg N fed-1). So, the nitrogen critical level for what grain yield is N3-treatment (60 kg fed-1). From the field experiment, the nitrogen critical level limitation for wheat crop yield is 60 kg N fed-1 under Egyptian environmental conditions for El-Gimmaza area such as soil moisture regime, soil temperature, biotic activity and soil pH.

Keywords: (Nitrogen Critical level, Loamy soil.)

The full text

Return to researches