Slow-release fertilizer is a general term for fertilizers that delay nutrient release. It can be further divided into Slow Release (Slow Release Fertilizer, SRF) and Controlled Release Fertilizer (CRF). Slow-release fertilizer refers to chemical fertilizer (GB/T23348-2009) that releases the effective nutrients of crops slowly over time through the chemical compounding or physical action of nutrients. Its nutrient release rate is much smaller than its normal dissolution release rate in soil, and nutrients are slowly converted into effective nutrients. This kind of fertilizer restricts the release process of fertilizer nutrients through technical measures, so that the nutrient release rate of chemical substances is much smaller than the natural release rate, but the rate of nutrient release rate is uncontrollable, and is affected by the characteristics of the fertilizer itself and environmental conditions. Mainly refers to the synthesis of urea formaldehyde and inorganic coated fertilizer and other product types. Controlled-release fertilizer refers to a fertilizer that pre-sets the release pattern (release time and rate) of the fertilizer during the crop growing season through various regulation mechanisms, so that the nutrient release is consistent with the crop fertilizer requirement. Its connotation means that through the processing control, the release rate of chemical nutrients can reach the set release mode. This nutrient release mode can correspond to the law of nutrient absorption of certain plants, mainly referring to polymer coated fertilizer. At present, the development of slow-release fertilizers, including polymer coated fertilizer, sulfur coated fertilizer, phosphate rock-coated fertilizer, urea formaldehyde and isobutylidine, is mainly developed by using fertilizer coating (wrap), urea and organic matter reaction. Diurea and other varieties. In practical applications, polymer coated fertilizers with good controlled release properties are often called controlled release fertilizers, and other fertilizers with less controlled release properties are called slow release fertilizers. This article URL: The difference between the concept of controlled release fertilizer, controlled release fertilizer and controlled release fertilizer Natural Plants Anti-Cancer Material We are a professional Chinese supplier of Natural Plants Anti-Cancer Material; we supply various products of Anti-Cancer Ingredients and Against Cancer Material; and we can providing product images and basic parameters with each Cancer Treat Material, such as Lupeol Powder,Taxifolin Powder,Brich Bark Extract,Hops Extract,Trametes Versicolor Extract. Look forward to your cooperation! Lupeol Powder,Taxifolin Powder,Brich Bark Extract,Hops Extract,Versicolor Extract Xi'an Quanao Biotech Co., Ltd. , https://www.quanaobiotech.com