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What is the difference between fast-dissolving, fast-spreading fertilizers and slow-dissolving, slow-spreading fertilizers?
At present, China has a great many types of controlled-release and slow-release fertilizers, and products with various materials and release mechanisms can be said to be flourishing in a hundred flowers. However, because farmers have a low level of knowledge, they are seriously lacking in understanding of such upgraded products. In particular, some unscrupulous manufacturers hype concepts and cut corners, which hurts consumers' feelings and causes them to...