Fertilizer slow-release agent and preparation method thereof

The invention relates to a fertilizer slow-release agent and a preparation method thereof, and applied to the field of agriculture and forestry. The fertilizer is prepared from the following raw materials in parts by weight: 5-35 parts of a urease inhibitor, 5-30 parts of a nitrification inhibitor, 35-65 parts of high-purity alpha-pimacol, 40-74 parts of humic acid, 1-5.5 parts of citric acid, 0.2-0.6 part of ammonium molybdate and 3-25 parts of agricultural rare earth. The fertilizer can be matched with ammonium nitrogen fertilizer or urea to be applied to various types of soil at the same time, soil microbial activity and crop root activity can be stimulated, and drought resistance and disease resistance of crops are improved. 本发明涉及一种肥料缓释剂及其制备方法，应用于农林领域。它由以下原料按重量份数比构成：脲酶抑制剂5～35份、份硝化抑制剂5～30份、高纯度α-萘乙酸钠35～65份、腐植酸40～74份、柠檬酸1～5.5份、钼酸铵0.2～0.6份、农用稀土3～25份。本发明可搭配铵态氮肥或尿素同时施入各种类型的土壤，能刺激土壤微生物活性和作物根系活力，提高作物的抗旱、抗病能力。