ʻO ka mea mua, e nānā kākou i nā mea maka i hoʻohana ʻia i ka hana ʻana i ka mea hoʻohuihui: 1) Nitrogen fertilizer: ammonium chloride, ammonium sulfate, ammonium sulfide, urea, calcium nitrate, etc. 2) Potassium fertilizer: potassium sulfate, lehu mauʻu, etc. 3) Phospat...
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