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مطيع-hamarsha-30119454
Question added by مطيع حمارشه, agricultural engineer, صندوق درء المخاطر والتامينات الزراعية (Padrrif) - 9 years ago

ما نسبة النيتروجين في زبل البقر بفرشة و بدون فرشة في الزراعة العضوية؟ شكرا.

Membership Management

Sustainable Agriculture

Science

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