What are the fertilizers allowed to be applied in the production of pollution-free vegetables?

(1) Organic fertilizer is manure, compost, green manure, cake fertilizer, plant ash, humic acid fertilizer, straw, etc. after harmless treatment; (2) Inorganic fertilizer is ammonium sulfate and ammonium bicarbonate in nitrogen fertilizer. Urea, lime nitrogen, etc.; superphosphate, heavy superphosphate, calcium magnesium phosphate, monoammonium phosphate, diammonium phosphate, etc. in potassium phosphate; potassium sulfate, potassium magnesium fertilizer in potassium fertilizer, etc.; borax, boric acid in trace element fertilizer , manganese sulfate, ferrous sulfate, zinc sulfate, copper sulfate, ammonium molybdate, and the like. (3) Other fertilizers are organic and inorganic compound fertilizers made from the above-mentioned organic fertilizers and inorganic fertilizers, and the state-registered new fertilizers and biological fertilizers that do not contain chemical synthesis regulators.
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