EVALUASI KUALITAS PUPUK ORGANIK YANG BEREDAR DI PULAU JAWA BERDASARKAN PERMENTAN NO. 70/SR.140/10 TAHUN 2011
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In the recent years, there are many commercial organic fertilizers sold in the free market. However, many of these organic fertilizers have not only low quality but some of them are also contain undesirable such as heavy metals...