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Slow/controlled-release compound organic fertilizer and preparation method thereof

A technology for organic fertilizers and mixtures, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of low straw technology, straw efficiency and benefits to be improved, limited straw processing equipment and related processing facilities, etc. Provides the effect of corn yield

Inactive Publication Date: 2015-09-23
HUBEI HUAFENG BIOLOGICAL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the imperfection of the specific process of straw utilization, insufficient policy and capital investment, insufficient market operation, limited straw processing equipment and related processing facilities, relatively low straw utilization technology, the efficiency and benefits of comprehensive utilization of straw need to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The slow and controlled release compound organic fertilizer is prepared by the following method:

[0020] 1. Crush wheat straw to a particle size of 1-3 mm to obtain straw granules, mix evenly the waste material of mushroom culture medium and straw granules to obtain mixture I, and evenly spray 1% (weight percent) aqueous solution of enzyme bacteria on the mixture, place at 60°C Put it aside for 8 days to get mixture II; wherein the weight ratio of straw grains, mushroom culture medium waste and enzyme bacteria is: 580:280:1;

[0021] 2. Add urea, ammonium dihydrogen phosphate, potassium sulfate and zinc humate to mixture II and mix uniformly to obtain mixture III; the ratio of the amount of urea, ammonium dihydrogen phosphate, potassium sulfate and zinc humate to straw grains is the amount by weight The ratio is: 65:40:30:5:580;

[0022] 3. Spray mixture IV evenly on mixture III, granulate at 95°C, and air-dry to obtain slow and controlled release compound organic fer...

Embodiment 2

[0024] Embodiment 2: In the applicant's experimental base, adopt the slow-controlled release compound organic fertilizer of the present invention, the applicant's existing product corn compound fertilizer, and ordinary farmyard manure to carry out comparative tests on the planted Zhengdan 518 corn variety, and the fertilizer application rate is 60 kilograms / mu. Test results: the applicant's existing product corn compound fertilizer has a yield of 650 kg per mu, the nutrient release rate in the fertilizer is 25% in 24 hours, 90% in 28 days, and the incidence of large spot disease is 20%; the yield of ordinary farmyard manure is 600 kg per mu, and the fertilizer The nutrient release rate is 35% in 24 hours, 98% in 28 days, and the incidence of large spot disease is 30%; the slow-controlled release compound organic fertilizer of the present invention has a yield of 780 kg per mu, and the nutrient release rate in the fertilizer is 13% in 24 hours, 70% in 28 days , The incidence r...

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Abstract

The invention relates to slow / controlled-release compound organic fertilizer. A preparation method comprises steps as follows: crushing straw until the grain size ranges from 1 mm to 3 mm to obtain straw grains, evenly mixing shiitake culture medium waste with the straw grains to obtain a mixture I, evenly spraying 1%-2% of an enzyme bacterium aqueous solution onto the mixture, and leaving the mixture to stand at the temperature of 55-65 DEG C for 7-10 days to obtain a mixture II; adding urea, ammonium dihydrogen phosphate, potassium sulfate and zinc humate to the mixture II, and evenly mixing the mixture to obtain a mixture III; mixing chitosan oligosaccharide, chitosan, hydroxypropyl methyl cellulose, APEO (alkylphenol ethoxylates) and water until complete dissolution to obtain a mixture IV, evenly spraying the mixture IV onto the mixture III, and performing granulation and air drying to obtain the slow / controlled-release compound organic fertilizer. Agricultural product processing waste is reutilized, the fertilizer is used as corn fertilizer, and compared with existing fertilizer, the fertilizer has the advantages that the corn yield can be increased more substantially and the incidence of northern corn leaf blight is decreased; the fertilizer has the long-acting slow-release effect.

Description

Technical field [0001] The invention relates to a slow-controlled release compound organic fertilizer 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] According to relevant statistics, the input of chemical fertilizers accounts for about 50% of the total input of farmers in planting production,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 孙世军孙阳孙午阳李明刚
Owner HUBEI HUAFENG BIOLOGICAL CHEM
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