The production standard of slow release fertilizer and its product advantages. The latest standard for slow release fertilizer is the “Slow Release Fertilizer†standard officially implemented by China on September 1, 2009. The standard requirements, test methods and inspections for slow release fertilizers. Rules, signs and other relevant aspects have been clearly defined. The core indicator, that is, the slow release fertilizer has a nutrient release rate of less than 15% at the beginning of 24 hours, and the cumulative nutrient release rate of 28 days does not exceed 80%. The purpose is to prolong the release cycle of nutrients, reduce the number of top dressings, and improve fertilizer utilization.
The advantages of slow-release fertilizer are mainly three aspects: First, the slow-release fertilizer is generally more than 30 days longer than the uncoated fertilizer, which can greatly improve the fertilizer utilization rate, and the fertilizer dosage is reduced by 10%-20% compared with conventional fertilization. The cost is relatively economical; secondly, the slow-release fertilizer can be combined with the quick-acting fertilizer as a base fertilizer for one-time application, reducing the number of top dressings and reducing the application of fertilization by about one-third; again, the application of slow-release fertilizer is better, and the yield of high-quality slow-release fertilizer is increased. Up to 5% or more.
This article URL: Production standards for slow release fertilizers and their product advantages
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