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Special compound fertilizer for corns

A special compound fertilizer technology for corn, applied in the direction of urea compound fertilizer, application, nitrogen fertilizer, etc., to achieve the effect of promoting growth and increasing yield

Inactive Publication Date: 2010-05-12
YUNNAN TIANTENG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a special compound fertilizer for corn in view of the lack of special low-concentration corn special fertilizer for various nutrients required for corn growth on the market at present.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: The special compound fertilizer production process of the present invention is the traditional drum granulation production process. The preparation method is: the powder containing P 2 o 5 27 kg of monoammonium phosphate with 45% N content and 10% N content, 370 kg of ammonium chloride with 25% N content, 23 kg of urea with 46% N content, and K 2 Potassium chloride 110 kg with 57% O ​​content, containing P 2 o 5 450 kg of calcium superphosphate with a content of 16% and 10 kg of zinc sulfate heptahydrate with a Zn content of 21% are mixed to form granules by means of the liquid phase cohesion of fertilizer salts, and then the agglomerated particles are moved by external force. Squeeze and roll each other to make them compact and shaped, and then dry, cool, and sieve to finally produce products with uniform nutrient distribution and good particle shape. The ratio of nitrogen:phosphorus:potassium:zinc in the prepared compound fertilizer is 11:8:6:0.2, wh...

Embodiment 2

[0012] Embodiment two: each raw material is mixed and prepared according to the following weight ratio: containing P 2 o 5 40 kg of monoammonium phosphate with 45% N content and 10% N content, 320 kg of ammonium chloride with 25% N content, 30 kg of urea with 46% N content, and K 2 Potassium chloride 90 kg with 57% O ​​content, containing P 2 o 5 Amount is 510 kilograms of calcium superphosphate of 16%, and containing Zn content is 10 kilograms of zinc sulfate heptahydrates of 21%. The compound fertilizer was prepared according to the method described in Example 1, and the ratio of nitrogen: phosphorus: potassium: zinc in the compound fertilizer was 10:10:5:0.2.

Embodiment 3

[0013] Embodiment three: each raw material is mixed and prepared according to the following weight ratio: 100 kilograms of ammonium sulfate containing 21% of N, 400 kilograms of ammonium chloride containing 25 percent of N, 10 kilograms of urea containing 46 percent of N, containing K 2 Potassium chloride 130 kg with 57% O ​​content, containing P 2 o 5 The amount is 350 kilograms of superphosphate of 16%, and the zinc sulfate heptahydrate of 21% containing Zn is 10 kilograms. The compound fertilizer was prepared according to the method described in Example 1, and the ratio of nitrogen: phosphorus: potassium: zinc in the compound fertilizer was 13:5:7:0.2.

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PUM

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Abstract

The invention relates to a special compound fertilizer for corns. The ratio of nitrogen to phosphorus to potassium to zinc in the compound fertilizer of the invention is 8-14:5-10:5-8:0.15-0.3. The special compound fertilizer for the corns can effectively promote the growth of corn crops, has an active promoting effect on the physiological and biochemical processes of the corn crops, improves the corn yield, and can solve the problems of growth retardation, decrescent plant leaves, dwarf plant, corn seed loss and bald tip and the like of the corns caused by zinc deficiency.

Description

technical field [0001] The invention relates to agricultural fertilizers, in particular to the technical field of low-concentration special compound fertilizers for corn. Background technique [0002] Corn is one of the most widely distributed food crops in the world. The planting area is second only to wheat and rice. China's annual corn production ranks second in the world. Corn is one of the main grains for people in the mountainous areas of northern and southwestern my country and other dry valley areas, and it is also an important industrial raw material. Due to the rising industrial value of corn, the demand for it has increased greatly, and the yield must be increased, so balanced fertilization is particularly important. There are many special-purpose compound fertilizers on the market at present, but there is no special-purpose low-concentration corn-specific fertilizer for the various nutrients required for corn growth. Contents of the invention [0003] The pur...

Claims

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Application Information

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IPC IPC(8): C05G1/00C05B7/00C05C3/00C05D1/02C05B1/02C05C9/00
Inventor 杨开祥王顺刚胡小平涂祖祥
Owner YUNNAN TIANTENG CHEM IND
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