A kind of composite organic special fertilizer for corn and preparation method thereof

Abstract

The invention relates to a composite organic special fertilizer for corn. The composite organic special fertilizer is prepared by the following steps: drying radix puerariae residues until the water content is 20%-30%, grinding to obtain powdery radix puerariae residues, uniformly mixing mushroom culture medium waste with the powdery radix puerariae residues to obtain a mixture I, uniformly spraying 1%-2% of enzyme microorganism water solution to the mixture I, standing at 55-65 DEG C for 7-10 days, so as to obtain a mixture II, wherein the weight ratio of the powdery radix puerariae residues to the mushroom culture medium waste to enzyme microorganism is (200-300) to (400-600) to 1; adding urea, calcium superphosphate, potassium dihydrogen phosphate, zinc humate and sodium silicate into the mixture II, and uniformly mixing to obtain a mixture III, wherein the weight ratio of urea to calcium superphosphate to potassium dihydrogen phosphate to zinc humate to sodium silicate to the powdery radix puerariae residues is (60-70) to (40-50) to (20-30) to (10-15) to (3-5) to (200-300); carrying out granulating and air drying on the mixture III, so as to obtain the composite organic special fertilizer for the corn. According to the composite organic special fertilizer, the reutilization of waste of agriculture product processing is solved; furthermore, compared with the existing fertilizers, the composite organic special fertilizer which is used as a crop fertilizer has the advantage that the crop yield can be relatively substantially increased.

Description

Technical field [0001] The invention relates to a special compound organic fertilizer for corn and a preparation method thereof. Background technique [0002] my country is already the largest fertilizer producer in the world. Although the arable land area is less than 10% of the world's total, my country's chemical fertilizer application is close to 1 / 3 of the world's total, ranking fourth in the world, but excessive use of chemical fertilizers has caused great harm to our country. [0003] Excessive use of chemical fertilizers not only rapidly reduces soil fertility and seriously affects crop quality, but also causes the loss of pollutants, destroys the ecological environment, and endangers human health due to chemical residues. At the same time, it further aggravates the problem of energy shortage in our country. [0004] With the popularization of modern agricultural technology, more and more people have realized that excessive application of chemical fertilizers will c...

AI Technical Summary

Problems solved by technology

However, the production of kudzu powder will produce a large amount of kudzu root residue, which is a kind of fibrous waste, which is difficult to degrade under natural conditions. If it is discarded, it will waste resources and cause environmental pollution.