Stabilized Fertilizer稳定性肥料

Key points

• The mechanism differs: a stabilised fertilizer uses chemical inhibitors to slow nitrogen transformation, whereas a slow or controlled release fertilizer uses physical coating or chemical combination to control release.
• The two therefore fall under different product standards and are judged on different criteria: inhibitor type and content for stabilised fertilizers, the nutrient release curve for slow and controlled release products.
• Because no coating is required, the cost increment of stabilisation is generally lower than that of coated products, giving a better cost per nutrient unit.
• The degradation rate of the inhibitor determines the effective period, and the declared period should match the persistence of the inhibitor.

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