一分鐘教你在家自製氮磷鉀肥，以後再也不用花錢買這些東西了 | 食品添加物合法業者資訊網

2018年6月21日—氮磷鉀肥的用處·1、氮肥·2、磷肥·3、鉀肥·自製氮磷鉀肥·1、自製氮肥·材料：日常生活中很多東西都是富含氮元素的原材料，例如壞掉的豆類、藥渣，剩下 ...

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