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العنوان
Studies on the ecology and control of aquatic and canal bank weeds of the Nile Delta, Egypt /
المؤلف
Serag, Mamdouh Mohamed Salem.
هيئة الاعداد
باحث / Mamdouh Mohamed Salem Serag
مشرف / M.A. Zahran
مشرف / Sven Bjork
مشرف / S. M. El-Dohlob
الموضوع
Aquatic weeds Ecology. Aquatic weeds Control. Aquatic weeds Egypt. Nile Delta.
تاريخ النشر
1991.
عدد الصفحات
157 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
علوم النبات
تاريخ الإجازة
1/1/1991
مكان الإجازة
جامعة المنصورة - كلية العلوم - Botany
الفهرس
Only 14 pages are availabe for public view

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Abstract

Water is most important natural resource and life can not exist without it. Ecologists from all over the world are calling for the protection of fresh water against the uncontrolled use and pollution. In humid countries agriculture depends principally upon rainfall and rivers are rarelyused to irrigate the crops. In dry countries like egypt, rainfall is negligible and does not provide enough water necessary to meet the agricultural requlrements. In Egypt.