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Friday, March 22, 2013
Sumber Unsur Hara Makro Nitrogen (N)
SumberN
Beberapa sumber N adalah: perombakan bahan organik: daur N; penyematan biologis: simbiotik dan non simbiotik; deposisi atmosfir: karena muatan listrik dan kegiatan industri; pupuk N dan rabuk, kompos dan bio solid.
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