He pararopi-kore ētahi whakahaumako, arā, kāore i hua mai i ngā matū pōpopo o te taiao, ko te nuinga kāore e whai waro ana, ā, he mea hanga e te tangata. Ka kīia he whakahaumako horihori (RP 2009:442). / Some fertilisers are inorganic waste, that is they are not made from natural decomposed material, the majority lacking carbon and are man-made. These are called artificial fertilisers.

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