Organic-inorganic compound fertilizer and preparation method thereof

The invention relates to an organic-inorganic compound fertilizer, which is prepared from the following raw materials in parts by weight: monoammonium phosphate, potassium sulfate, coated urea, borax, zinc amino acid chelate, humic acid, 10-20 parts of an anti-blocking agent, 2-18 parts of attapulgite, 3-11 parts of straw, 2-15 parts of soybean meal, 2-12 parts of distillers' grains, 3-17 parts of a biological agent and 2-14 parts of a plant growth regulator. The fertilizer can effectively improve the physical and chemical properties of soil, regulate the pH value of the soil, promote the activity of soil microorganisms, increase the activity of soil enzymes, loosen the soil, effectively prevent soil hardening, desertification and environment pollution caused by the application of excessive inorganic fertilizer, and improve the yield and quality of crops. 本发明涉及一种有机无机复合肥，所述掺混肥由下列重量份的原料组成：磷酸一铵、硫酸钾、包膜尿素、硼砂、氨基酸螯合锌、腐殖酸、防结块剂10-20份、凹凸棒土2-18份、秸秆3-11份、豆粕2-15份、酒糟2-12份、生物菌剂3-17份、植物生长调节剂2-14份。本发明可以有效改善土壤理化性状，调节土壤酸碱度，促进土壤