SILICON-BASED SLOW-RELEASE POTASSIUM FERTILIZER AND PREPARATION METHOD THEREFOR

摘要

The present invention relates to a silicon-based slow-release potassium fertilizer and a preparation method therefor, and more specifically relates to a silicon-based slow-release potassium fertilizer prepared from potassium-containing rock resources and a preparation method thereof, the silicon-based slow-release potassium fertilizer of the present invention is free of acid factors such as chlorine and sulfate radicals, is environmental-friendly, and after being fertilized into the soil, it can release nutrients such as K, Si, Ca, Mg, Fe and the like contained therein, can be absorbed and utilized by crops, and can also neutralize the acid substances in the soil, and improve cation exchange capacity and water retention and fertilizer retention capability of the soil.