Zinc-rich efficient slow release special corn fertilizer and preparation method thereof

A technology of special fertilizer and elements for corn, which is applied in the field of slow and controlled release fertilizer, to achieve the effects of enhanced drought resistance, long fertilizer effect period and improved stress resistance

Active Publication Date: 2012-06-13
STANLEY AGRI GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the production of domestic corn compound fertilizers generally has problems such as small scale, high energy consumption, serious pollution, and large investment, and the nutrient distribution of fertilizer particles produced by traditional techniques Uneven, insufficient product strength, and easy to cause serious environmental pollution

Method used

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  • Zinc-rich efficient slow release special corn fertilizer and preparation method thereof
  • Zinc-rich efficient slow release special corn fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Example 1: Prepare a special fertilizer for high-efficiency slow-release corn rich in zinc, wherein the contents of nitrogen, phosphorus pentoxide and potassium oxide are 28%, 6% and 6% respectively, which are percentages by mass.

[0071]Take 580kg of small granule urea, 140kg of monoammonium phosphate, 100kg of potassium chloride, 2kg of urease inhibitor, 10kg of zinc sulfate, and 168kg of bentonite as raw materials.

[0072] Accurately measure the above-mentioned raw materials, and use the tower melt granulation process for spray granulation production: use urea melt to mix with raw materials such as monoammonium phosphate and potassium chloride strictly measured according to the formula to form a low eutectic melt with good fluidity The solid suspension mixed slurry, and through the granulation nozzle, the mixed slurry is sprayed into the granulation tower, so that it exchanges heat with the rising air flow during the gravity fall process, cools and solidifies to for...

Embodiment 2

[0074] Example 2: Prepare a special fertilizer for high-efficiency slow-release corn rich in zinc, wherein the contents of nitrogen, phosphorus pentoxide, and potassium oxide are 30%, 5%, and 5% respectively, which are percentages by mass.

[0075] Get 630kg of small grain urea, 110kg of monoammonium phosphate, 100kg of potassium sulfate, 3kg of urease inhibitor, 8kg of medium and trace elements such as zinc sulfate, and 149kg of bentonite as raw materials; the preparation process is the same as in Example 1.

[0076] Comparative example: 54% ordinary potassium chloride compound fertilizer, the ratio of nitrogen, phosphorus and potassium is 18-18-18, and it is Sanan compound fertilizer produced by Stanley Fertilizer Co., Ltd.

[0077] The applicant set the test in Nangu Town, Linshu County, Shandong Province. The soil type is fluvo-aquic soil, and the soil nutrient content: organic matter 1.10%, available nitrogen 120ppm, available phosphorus 12.4ppm, and available potassium 80...

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Abstract

The invention discloses zinc-rich efficient slow release special corn fertilizer and a preparation method thereof, and relates to the technical field of slow release fertilizer. According to the special corn fertilizer, small particle urea, monoammonium phosphate, potassium chloride, a urease inhibitor, zinc sulfate and other medium and trace elements, and bentonite are adopted as raw materials, and the materials are prepared according to the specified preparation process and the specified ratio. According to the present invention, the special corn fertilizer and the preparation method have advantages of advanced production process, long effective fertilizer period, crop growth promoting, significant yield increasing, crop stress resistance improving, and prolongation of the functional period of leaves.

Description

technical field [0001] The invention relates to the technical field of slow-release fertilizers, in particular to a zinc-rich high-efficiency slow-release corn special fertilizer produced by a tower-type melt granulation compound fertilizer device and a preparation method thereof. Background technique [0002] The normal zinc content of plants is about 25-150mg / Kg (dry weight). Zinc is an important component or activator of some enzymes in plants. Zinc participates in the synthesis of auxin, promotes the diffusion of chlorophyll, and participates in CO in photosynthesis. 2 Zinc can also enhance the ability of plants to resist disease, cold and drought, and is an essential nutrient for the normal growth of crops. [0003] For a long time, farmers in our country generally have "three heavy and three light" in the fertilization habits of corn, that is, heavy chemical fertilizers light organic fertilizers, heavy nitrogen and phosphorus fertilizers light potassium fertilizers,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/08C05G5/00C05G3/90
Inventor 高进华周丽陈大印解学仕
Owner STANLEY AGRI GRP CO LTD
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