مدير المعهد الحالى

أ.د/ علاء البابلى

مدير معهد بحوث الأراضى والمياه والبيئة

إدارات المعهد المتعاقبة
من البداية حتى الآن

أ.د/ حمدى خليفة

مدير معهد بحوث الأراضى والمياه والبيئة الفترة: 2007 - 2011

مواقع صديقة

مركز البحوث الزراعية
Agricultural Research Center
المكتبة القومية الزراعية
Egyptian National Agricultural Library
مزيد من المواقع الصديقة

مواقع مفيدة

كلية الزراعية جامعة عين شمس
Faculty of Agriculture Ain Shams University
الإدارة المركزية للأراضي والمياه والبيئة‎
Central Administration of Soils, Water and Environment
المركز الدولى للبحوث الزراعية بالمناطق الجافة
International Center for Agricultural Research in the Dry Areas
مزيد من المواقع المفيدة

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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.
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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
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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
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إيمان عبد المجيد زغلول( 2015).
كفــاءة الأســـمـدة النيتــروجينيــة فـي الأراضــي الملــوثــــة
Efficiency Of Nitrogen Fertilizers In Contaminated Soils
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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
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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
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Lamyaa A. Abd El-Rahman; Dalia A. Sayed and Magda A. Ewais( 2016). Seed yield and quality of sunflower (Helianthus annuus L.) as influenced by integrated mineral and organic nitrogen fertilization systemsJ.Soil Sci. and Agric. Eng., Mansoura Univ., Vol. 7 (1):53-63, 2016
Abstract: Two field experiments were conducted during the two successive seasons of 2013 and 2014 at El- Gemmeiza Research Station (30º 47 ״ 22.5 ׳ N, 31° 07 ״ 34 ׳ E, elev. 10 m), Agriculture Research Center, El-Gharbia Governorate, Egypt to study the effect of integrated fertilization of N- mineral and organic fertilizer combined with bio fertilizer (including the genera Azotobacter and Azospirillium) on sunflower (c.v. Sakha 53) seed yield and quality. The experiment was laid out in a randomized complete block design with three replicates. The experimental treatments comprised partial substitution of the recommended mineral N (MNRec.) rate (30kgN/fed.) with organic N fertilizer (ONF) as compost combined with bio fertilizer. Results revealed that application of T4 (50%MNRec. +25% ONF +Bio) significantly improved yield, as well as yield attributes and protein and oil yields as compared to 100%ONF(T8) or 100%MN(T1) only .The integrated MN with ONF(25-50%ONF)always gave higher values than those obtained with full N rate as mineral or organic only. However, maximum seed oil percentage was recorded, when crop was fertilized by T6 (100%ONF+Bio) followed by T5 (25%MNRec. +75% ONF) while maximum seed oil yield was recorded by T2 (50% MN Rec. +50% ONF) followed by T4 (50%MN Rec. +25% ONF +Bio). According to the results of this experiment, unsaturated fatty acids, mainly linoleic and oleic acids raised in response to the integrated fertilization system while the saturated fatty acid (palmitic and stearic acid) were reduced. High percentages of oleic acids (50.17%) and linoleic acid (45.29%) were observed in T4 and T9. So, bio- organic fertilizer could be considered as a suitable substitute (25-50%) for mineral nitrogen fertilizer in agricultural systems.

Keywords: (Fatty acid composition, Sunflower seeds, Mineral nitrogen, Bio-fertilizer, Organic fertilizer, Oil yield)

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