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Multifunctional compound fertilizer

A compound fertilizer and multi-element technology, applied in the direction of magnesium fertilizer, inorganic fertilizer, fertilization equipment, etc., can solve the problems of increasing production and sales costs

Inactive Publication Date: 2009-04-22
INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no technical record in China that can increase magnesium nutrition without increasing production and sales costs, and has the function of improving soil properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Under normal temperature and pressure, select 342 kilograms of urea sold on the market with 46% (N), 55% (N+P) 2 o 5 ) of monoammonium phosphate 205 kg, 60% (K 2 (2) 300 kilograms of potassium chloride, 35 kilograms of sepiolite and biomass binder, and 118 kilograms of lightly burned powder that are crushed to 100 mesh fineness, and several materials are transported to the crusher for crushing and stirring by a metering belt, so that After fully mixing, add steam to transfer shares and granulate to make compound fertilizer. The total content of nitrogen, phosphorus and potassium nutrients in the compound fertilizer (N+P 2 o 5 +K 2 O) is 45%, and the magnesium oxide content is 10%.

Embodiment 2

[0018] Under normal temperature and pressure, select 150 kilograms of urea of ​​46% (N) sold on the market, 139 kilograms of ammonium chloride of 22.5% (N), 12% (P 2 o 5 ) of superphosphate 417 kg, 60% (K 2 (2) 167 kilograms of potassium chloride, 56 kilograms of zeolite and biomass binder and 71 kilograms of lightly burned powder that are crushed to 200 mesh fineness, and several materials are transported to the crusher for crushing and stirring by the metering belt, so that After fully mixing, add steam to transfer shares and granulate to make compound fertilizer. The total content of nitrogen, phosphorus and potassium nutrients in the compound fertilizer (N+P 2 o 5 +K 2 O) is 25%, and the magnesium oxide content is 6%.

Embodiment 3

[0020] Under normal temperature and pressure, select 304 kilograms of urea sold on the market with 46% (N), 55% (N+P 2 o 5 ) of monoammonium phosphate 182 kg, 50% (K 2 (2) 320 kilograms of potassium sulfate, 76 kilograms of sepiolite and biomass binder crushed to 100 mesh fineness, 118 kilograms of lightly burnt powder, and several materials are transported to the crusher for crushing and stirring by the metering belt, so that it is fully After mixing, add steam to transfer shares and granulate to make compound fertilizer. The total content of nitrogen, phosphorus and potassium nutrients in the compound fertilizer (N+P 2 o 5 +K 2 O) is 40%, and the magnesium oxide content is 10%.

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Abstract

The invention provides a multifunctional compound fertilizer which comprises nitrogen, phosphors, potassium and magnesia; and the content of the magnesia is between 6 and 10 percent. According to proportion, 11.8 percent of caustic magnesite powder and 3.5 to 7.6 percent of sepiolite and a biomass caking agent are mixed with the compound fertilizer; or the caustic magnesite powder, zeolite and the biomass caking agent are mixed to make the mixed product contain 7.1 percent of the caustic magnesite powder and 4.8 to 6.2 percent of the zeolite and the biomass caking agent. The multifunctional compound fertilizer can solve the problems that the red soil in South China lacks a magnesium element so as to cause the reduction of crop yield, can improve physicochemical property and micro-entironment of soil and remarkably increase the yield and quality of the crop.

Description

technical field [0001] The invention relates to a compound chemical fertilizer, and more specifically relates to a multi-functional compound chemical fertilizer containing nitrogen, phosphorus and potassium. Background technique [0002] The compound fertilizers commonly used in agricultural production contain two or three of the three elements of nitrogen, phosphorus, and potassium. Although this type of compound fertilizer is suitable for crops growing in various soils, it cannot or is difficult to meet special soil types. In particular, it is difficult to meet the needs of crop growth on low-fertility red soil dryland. Magnesium is one of the elements necessary for the growth of crops. It is the only mineral nutrient element in the composition of chlorophyll molecules. It is also an activator of many enzymes such as phosphokinase. It is listed as the fourth plant element after nitrogen, phosphorus, and potassium. Large required element. In the red soil area in southern ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05D5/00
Inventor 曾希柏罗尊长高菊生孙楠白玲玉
Owner INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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