The invention discloses a special
fertilizer for a cotton base
fertilizer. The special
fertilizer is prepared by silkworm excrement, wintergreen oil residue, decomposed
coal, diatomite, biological
bacteria,
urea, diammonium
hydrogen phosphate,
potassium sulfate,
goose feather bar, carboxymethylcellulose, 35% of
sulfuric acid,
lime,
zinc sulfate,
magnesium sulfate,
manganese sulfate, nanometer iron-ore tailing
powder, sweet
wormwood extract,
azadirachtin and wintergreen oil according to a certain weight ratio. According to the special fertilizer,
amino acid is generated by feathers after
acid hydrolysis, trace elements or secondary elements are cheated, and a chelate structure of the trace elements or the secondary elements is reinforced by the carboxymethylcellulose, so that the trace elements or the secondary elements can be effectively utilized and ineffective releases of the trace elements or the secondary elements can be reduced; an inorganic slow release component and a soil improvement component, namely the diatomite and the decomposed
coal, are added in a formula of the special fertilizer to improve the soil and to be beneficial to the effective release of fertilizer efficiency and full absorption of the fertilizer by the crops; biological insecticide components, namely the nanometer iron-ore tailing
powder, the sweet
wormwood extract and the
azadirachtin can effectively reduce pest and
disease damage of soil, are safe and
pollution-free, and do not pollute an environment or the crops; and the special fertilizer has the advantages that the formula is reasonable, the
nutrition is more comprehensive and balanced, the use effect is good, the
utilization rate of fertilizer efficiency can be remarkably increased, the yield and the quality of cotton are greatly improved, and the economic benefit of the cotton is increased.