A pro-growth biologically active slow release compound fertilizer

The present invention relates to the field of compound fertilizers, growth-promoting particularly relates to a biologically active slow release compound fertilizer, the fertilizer prepared from starting materials the following parts by weight: 1250-2000 mesh diatomaceous earth 10-15, 13-15 potassium chloride, ammonium nitrate 18-20, 15-18 diammonium phosphate, urea, 20-22, 12-14 calcium magnesium phosphate, ammonium molybdate 2-3, 15-16 Flammulina mushroom residue, grapefruit peel 2-4, Broussonetia leaves powder 1-3, hydroxy ethylidene diphosphonic acid 4-6, 10-12 sheep, cotton seed hulls powder 6-8, 10-12 polyvinyl alcohol, tributyl phosphate, 3-5, 1-2 sodium polyphosphate, nanosilica 1-2, 1-2 linalool, herb 1-3, 2-4 zinc gluconate, vinegar 6-8, 4-5 aids; fertilizer wide sources of raw materials of the present invention, improved a single fixed phenomenon conventional nutrient fertilizer, using a diatomaceous earth, and in the process forming a double coating agent coated on the nutrient, such that nutrient loss is not easy, fertilizer is more durable, biologically active ingredient in the raw material can effectively promote crop growth to achieve a significant increase production effect.