A kind of organic-coated controlled-release compound fertilizer and preparation method thereof

A compound fertilizer and coating technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve problems such as a large number of organic solvents, cost problems, and less coating amount, and achieve the effects of improving soil quality, increasing yield, and not easy to run off

Active Publication Date: 2011-12-28
SHANDONG XIFENGTIAN ECOLOGY FERTILIZER IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many studies on the use of organic matter as coating materials. The advantage is that the amount of coating is small and the controlled release effect is good. However, a large amount of organic solvents need to be used. This is not only a cost problem, but also needs to be solved. Degradation of residues, otherwise its large accumulation in the soil will have a relatively large negative impact on the environment and agriculture

Method used

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  • A kind of organic-coated controlled-release compound fertilizer and preparation method thereof
  • A kind of organic-coated controlled-release compound fertilizer and preparation method thereof
  • A kind of organic-coated controlled-release compound fertilizer and preparation method thereof

Examples

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Embodiment

[0040] Example: Take urea 30-60, monoammonium phosphate 10-30, potassium salt 10-36, active organic matter 10, and trace elements 0.02-0.1.

[0041] A kind of preparation method of organic coating controlled-release compound fertilizer of the present invention is as follows:

[0042] 1. Manually feed the solid urea 30-60 into the material hopper, and the computer-controlled batching scale will carry out automatic batching and then enter the dissolving tank. The dissolving tank is controlled by the numerical control system, adding an appropriate amount of water and heating with the internal steam coil. The temperature of the dissolving tank Controlled at 95-110°C, the solid urea is dissolved into urine slurry by the dissolution tank, the concentration of the urine slurry is 85%-95%, and the urine slurry is sprayed into the drum granulator from several nozzles in the dissolution tank; at the same time, the monoammonium phosphate is manually 10-30, Potassium salt 10-36 is sent in...

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Abstract

The invention discloses an organic enveloped controlled-release compound fertilizer. The fertilizer comprises the following raw materials in parts by weight: 30-60 parts of urea, 10-30 parts of monoammonium phosphate, 10-36 parts of potassium salt, 10 parts of active organic matter and 0.02-0.1 part of trace elements. The organic enveloped controlled-release compound fertilizer has the advantagesof improving the quality of soil so that plants can more efficiently utilize the fertilizer, promoting the metabolization of various nutrient elements, improving the quality of agricultural products,increasing yield, reducing farmland investment cost, lightening labor intensity, increasing roots and strengthening seedlings, promoting growth of plants and enhancing stress resistance, and has quick-acting and long-acting dual effects.

Description

technical field [0001] The invention belongs to the technical field of agricultural chemical fertilizers, in particular to an organic-coated slow-controlled release compound fertilizer and a preparation method thereof. Background technique [0002] Nowadays, improving the utilization rate of chemical fertilizers, reducing its pollution to the environment, and developing sustainable and efficient agriculture have become a hot spot of common concern in all countries. Controlled-release fertilizers have opened up a new way to solve these problems. This kind of fertilizer can better control the release rate of fertilizer nutrients and increase the nitrogen utilization rate from 30%-35% to 60%-70%. It is not affected by complex factors such as soil type, and is called "the fertilizer of the 21st century", and the coated controlled-release fertilizer is one of them. [0003] The research on coated fertilizers mainly considers coating materials, which play a vital role in the rele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/08C05G3/90
Inventor 信书宝金保华李德福窦兴霞
Owner SHANDONG XIFENGTIAN ECOLOGY FERTILIZER IND
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