| Abstract |
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The invention discloses a special controlled release fertilizer for chitosan coated mangoes and a preparation method of the special controlled release fertilizer, and relates to the technical field of special slow controlled release fertilizer for fruits. Following the rule of mangoes to absorb nutrients, 4% chitosan coated urea, 6% chitosan coated urea, urea, ammonium sulfate, calcium superphosphate, calcium magnesium phosphate, potassium sulfate and sodium borate are compounded, blended by a blender, weighed, and packed to obtain the special contr |