Corn-coated slow-release long-acting compound fertilizer with diatomite as carrier

A technology of coated slow-release and diatomite, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of few products and few slow-release long-acting fertilizers, and achieve low price, easy popularization and use, and improved The effect of fertilizer use efficiency

Inactive Publication Date: 2013-09-18
吉林省巨森肥业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The development and utilization of diatomite started in my country in the 1960s and has been widely used in light industry, chemical industry, building materials, petroleu

Method used

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  • Corn-coated slow-release long-acting compound fertilizer with diatomite as carrier
  • Corn-coated slow-release long-acting compound fertilizer with diatomite as carrier

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1

[0019] 1) First, use distilled water as the binder, put the nitrogen fertilizer and potassium fertilizer that can pass through the 80-mesh sieve in the above ratio and put them into a granulator for granulation. The basic parameters of the granulator are: the speed is 40 rpm, the temperature for 70 o C, the elevation angle is 50 0 ;

[0020] 2) Afterwards, spray about 50 ml of distilled water to moisten the surface of the granulated fertilizer so that the adhered diatomite can pass through a 100-mesh sieve;

[0021] 3) After the 10% diatomite wrapping granulation is completed, then use a high-pressure spray gun to evenly spray a small amount of polyvinyl alcohol, a coating curing material, onto the surface of the fertilizer granules;

[0022] 4) Finally, pour 3% rosin paraffin mixture (rosin: paraffin = 1:2) into the drum and keep the temperature at 70 oC , and wrap the coated fertilizer granules again after melting.

Example Embodiment

[0023] Example 2

[0024] 1 Materials and methods

[0025] 1.1 Corn variety: Zhengdan 958, purchased from the market;

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Abstract

The invention relates to a corn-coated slow-release long-acting compound fertilizer with diatomite as a carrier. The compound fertilizer is characterized in that the ratio of nutrients N, P2O5 and K2O is equal to 30:0:15, the total content of the nutrients is 45% and the use amount of the diatomite as a coating material accounts for 10% weight of the fertilizer. With the diatomite, soil can be separated from being directly contacted with the fertilizer and the release of the nutrients is controlled; the diatomite has effects of water retention, fertilizer retention, slow-release and prolonging of fertilizer efficiency, and soil improvement; and no pollution is caused by the compound fertilizer to the soil.

Description

technical field [0001] The invention relates to a corn-coated slow-release long-acting compound fertilizer with diatomaceous earth as a carrier, which is used for corn-coated slow-release and belongs to high-concentration nitrogen and potassium compound fertilizers. Background technique [0002] Statistics from the United Nations Food and Agriculture Organization show that chemical fertilizers account for 40%-60% of the increase in crop yield, but the fertilizer utilization rate is only 15%-55%. Commonly used ordinary fertilizers will cause nutrient loss due to volatilization and leaching, so it is often necessary to topdress the crops in the mid-growth period, resulting in a low fertilizer utilization rate, which not only causes a huge waste of resources, but also may cause serious environmental pollution, such as: ground surface Eutrophication of water bodies, nitrate nitrogen content in groundwater and vegetables seriously exceed the standard and other problems. Accordin...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 王志山闫飞曲占奎杨振明柳初一张玉彬曹宁
Owner 吉林省巨森肥业有限公司
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