1, farmyard fertilizer such as compost, manure, biogas fertilizer, green manure, crop straw, mud, cake fat and so on. Among them, high-temperature composting should be strongly promoted.
2. Biological bacterial fertilizers include humic acid fertilizers, rhizobia fertilizers, phosphorus bacterial fertilizers, and composite microbial fertilizers.
3, inorganic mineral fertilizers such as mineral potassium and potassium sulfate, mineral phosphate fertilizer.
4, trace element fertilizer that is copper, iron, boron, zinc, manganese, molybdenum and other trace elements and beneficial elements as the main fertilizer.
5, other fertilizers such as bone meal, amino acid residues, livestock processing waste, sugar factory waste.
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