Iyo organic fetereza yekuvirisa tangi inonyanya kusanganisa sludge yekurapa kwepamusoro-tembiricha aerobic kuvirisa kwezvipfuyo nehuku mupfudze, tsvina yemukicheni, tsvina yemumba uye mamwe tsvina, kuora kwebiological, uye kushandisa zviwanikwa.Zvimiro zve organic fertilizer...
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