The invention discloses special pumpkin
fertilizer with high utilization efficiency. The
fertilizer is prepared from the following raw materials in parts by weight: 75-85 parts of microelement
fertilizer, 20-30 parts of oil tea cake, 6-12 parts of pine needle
meal, 5-15 parts of fermented
slaughter house residues, 10-20 parts of
mushroom residues, 0.5-1.2 parts of
ferrous sulfate, 1-2 parts of EDTA
manganese chelate, 1-2 parts of EDTA
zinc chelate, 1-2 parts of
calcium sulfate, 7-13 parts of an adsorption sustained release preparation, 2-6 parts of a compound
coating agent and 0.1-0.2 part ofa
bacillus subtilis preparation, wherein the compound
coating agent is prepared by the following steps: uniformly stirring
sodium carboxymethylcellulose and water, dropwise adding a
copper sulfate aqueous solution, uniformly mixing, adding lignite
wax,
humic acid and
talc powder, and uniformly mixing to obtain the compound
coating agent. The fertilizer has a good sustained release effect and extremely high fertilizer utilization, cannot easily cause environmental
pollution due to fertilizer loss, can be used for effectively improving
soil structure with good effect for preserving water and fertilizer, and has a remarkable effect for improving yield and quality of pumpkins.