تعداد بعض طرائق المحافظة على التربة

تعداد بعض طرائق المحافظة على التربة . حل كتاب العلوم للصف السادس الفصل الدراسي الاول

الاجابة هي

طرق حفظ التربة :

* التسميد .

* الدورة الزراعية .

* الأشرطة المتبادلة .

* الحراثة الكنتورية .

* المصاطب .

* مصدات الرياح .

* القوانين .

* الجهود الفردية .

* التعليم .

أخر المواضيع من قسم : اسألني

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تعداد بعض طرائق المحافظة على التربة

أخر المواضيع من قسم : اسألني