تم الإجابة عليه: اكتب ملخصا عن دورة النيتروجين

الاجابة هي
تقوم البكتيريا المتصلة بالعقد الجذرية بتحويل غاز النيتروجين في الجو إلى أمونيا ثم يحول نوع من البكتيريا التربة الأمونيا إلى نيتريت ويقوم نوع آخر من البكتيريا بتحويل النتريت إلى نترات يتم تخزيلها في أنسجة النباتات وتأكل الحيوانات النباتات المحتوية على النترات وتطرح الزائد على حاجتها فتتحلل النترات الزائدة وتعود إلى التربة على شكل أمونيا

أخر المواضيع من قسم : ejabty

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تم الإجابة عليه: اكتب ملخصا عن دورة النيتروجين

أخر المواضيع من قسم : ejabty