The invention discloses a special nutritive
fertilizer for apple trees. The special nutritive
fertilizer is prepared from the following raw materials in parts by weight: 140-160 parts of
edible mushroom residues, 100-120 parts of
sawdust, 100-120 parts of
rape seed cakes, 60-70 parts of
chaff, 30-34 parts of diatomite, 55-60 parts of
ammonium dihydrogen
phosphate, 16-19 parts of
potassium chloride, 3-4 parts of
zinc sulfate, 2-3 parts of
sodium selenite, 3-4 parts of
magnesium sulfate, 3-4 parts of
borax, 3-4 parts of
ferric chloride, 1-2 parts of
sodium diacetate, 6-9 parts of EM(
Effective Microorganism)
fungicide and 10-15 parts of
soil conditioner. The
fertilizer disclosed by the invention can be used for conditioning soil, overcoming the defect of soil hardening, improving the soil air permeability, reducing the loss and
evaporation of water, relieving the drought load, conserving
manure, increasing the
soil fertility and ensuring that the yield of applies is greatly increased. In addition, the added diatomite contains SiO2 as the main chemical component and also contains a small quantity of Al2O3, Fe2O3, CaO, MgO, K2O, Na2O, P2O5 and organic matters. The special nutritive fertilizer has the advantages of
fineness, looseness, light weight,
porosity, strong water absorption and permeability, no
toxicity, good suspension property, strong adsorption property and the like, and plays roles in preserving
moisture, loosening the soil, prolonging the
pesticide and fertilizer effect time and promoting the growth of crops in soil.