The invention relates to the field of compound fertilizers, particularly a chinaure-containing high-efficiency slow-release compound
fertilizer. The
fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of 1250-2000-mesh kieselguhr, 12-15 parts of
calcium superphosphate, 20-22 parts of
urea, 12-14 parts of
plant ash, 15-18 parts of
sugar mill
lime sludge, 8-10 parts of rotten vegetable leaf, 4-6 parts of glycerophosphate
sodium, 5-8 parts of
xylanase, 20-22 parts of oil tea cake
powder, 28-30 parts of
poultry manure, 4-6 parts of
sodium isoascorbate, 10-12 parts of
glycidol ether epoxy resin, 3-5 parts of butyl
glycidyl ether, 1-2 parts of polyethyleneglycol, 1-2 parts of
ethylenediamine, 5-7 parts of pine needle
powder, 2-4 parts of chinaure, 4-5 parts of
borax, 2-3 parts of
sodium tripolyphosphate, 1-3 parts of
potassium permanganate, 2-4 parts of
zinc gluconate, 6-8 parts of table vinegar and 4-5 parts of assistant. The compound
fertilizer has multiple nutrients; the kieselguhr and
coating agent are utilized to implement dual slow-release coatings; and the
coating agent contains the chinaure, and can prevent the insects and ants from
biting. The fertilizer has the advantages of low tendency to
nutrient loss, long fertilizer efficiency, no
toxicity or harm to soil and favorable
crop root environment, has the functions of sterilization and
corrosion resistance, and enhances the yield and quality.