تم الإجابة عليه: افترض انني اقوم بتجربة لتحديد دور المياه الجارية في انجراف التربة فيها المتغيرات التي سوف اغيرها في هذه التجربة

ج ـ المتغيرات هي ميلان التربة وسرعة تدفق المياه الجارية وزراعة النباتات قد تختلف تصاميم التجارب ولكنها يجب أن تشير إلى التقيل من انجراف التربة ـ

أخر المواضيع من قسم : ejabty

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تم الإجابة عليه: افترض انني اقوم بتجربة لتحديد دور المياه الجارية في انجراف التربة فيها المتغيرات التي سوف اغيرها في هذه التجربة

أخر المواضيع من قسم : ejabty