The invention provides a special
winter wheat base
fertilizer consisting of the following raw materials in parts by weight: 10-20 parts of tea-seed pancakes, 4-5 parts of
sulfur coated urea, 18-20 parts of enveloped
diammonium phosphate, 5-8 parts of
potassium chloride, 20-30 parts of
coal ashes, 1-2 parts of
ferrous sulfate, 0.1-0.5 part of
zinc sulfate, 0.1-0.3 part of
boric acid, 10-12 parts of
sepiolite, 5-7 parts of bamboo charcoals, 3-4 parts of
celastrus orbiculatus powders, 3-4 parts of oleander powders, 10-15 parts of
bagasse, 10-15 parts of iron ores, 18-22 parts of
cow dung, 3-4 parts of carboxymethylcellulose, 15-20 parts of 30% of
sulfuric acid, 5-10 parts of limes, 10-15 parts of bean pulps and 4-6 parts of
epoxidized soybean oil. The special
winter wheat base
fertilizer is prepared by a preparation method comprising the following steps: conducting acidolysis on hairs to generate
amino acid, then generating a micro element
fertilizer liquid and an intermediate element fertilizer liquid chelated with
amino acid, then
sintering the iron ores to prepare a fertilizer carrier, fermenting an
organic fertilizer, mixing
nitrogen-
phosphorus-
potassium fertilizer, the carrier, the
organic fertilizer and a vegetable insecticide, then spraying the micro element fertilizer liquid and the intermediate element fertilizer chelated with
amino acid, granulating, and finally adopting the
epoxidized soybean oil for enveloping. According to the special
winter wheat base fertilizer provided by the invention, the fertilizer utilization ratio is improved obviously, the slow release effect is achieved, the fertilizer application amount is lowered, the
pesticide residual is lowered, and the output and the quality of winter wheat are improved.