Special lecithin-coated slow release fertilizer for cotton and production method of fertilizer

A coating slow-release and production method technology, which is applied in the field of cotton-specific lecithin coated slow-release fertilizer and its production, to achieve the effects of improving community structure, nutritional balance, and increasing fertilizer efficiency

Active Publication Date: 2013-05-15
新疆正易龙农资有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since it was discovered by Gohley in 1844, it has aroused the interest of many experts, and a large number of researches have been carried out mainly on animal nutrition. Protein and vitamins are the third largest nutrient, and soybean lecithin is the most widely used emulsifier in feed additives, but it is still blank in plant nutrition research

Method used

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  • Special lecithin-coated slow release fertilizer for cotton and production method of fertilizer
  • Special lecithin-coated slow release fertilizer for cotton and production method of fertilizer
  • Special lecithin-coated slow release fertilizer for cotton and production method of fertilizer

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Experimental program
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Effect test

Embodiment 1

[0024] Proportion (kg): urea 300, monoammonium phosphate 150, potassium chloride 300, ammonium chloride 100, calcium 100, zinc sulfate 10, borax 10, lecithin 20 and amidinothiourea 10.

[0025] The content of the main raw materials: monoammonium phosphate (N11-P 2 o 5 44), potassium chloride (K 2 O≥60%), urea (N≥46%), ammonium chloride (N≥25%), general calcium (P 2 o 5 18%), the lecithin purity is above 90%.

[0026] (1) Measuring, stirring, crushing

[0027] After the monoammonium phosphate, potassium chloride, ammonium chloride, zinc sulfate and borax are measured according to the formula, they are stirred and crushed, and then enter the drum granulator. The models of chain crusher and vertical mixer are: XW-100,

[0028] (2) Urea melting

[0029] After 280 kg of urea is melted by steam in the dissolving tank, it is pumped into the granulator through the slurry. The specification of urea dissolving tank is

[0030] (3) Granulation

[0031] The molten urea is co...

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Abstract

The invention discloses a special lecithin-coated slow release fertilizer for cotton. The slow release fertilizer is prepared from the following raw materials: urea, monoammonium phosphate, potassium chloride, ammonium chloride, superphosphate, zinc sulfate, borax, lecithin and amidinothiourea; and the production method of the slow release fertilizer comprises the steps of: firstly, granulating monoammonium phosphate, potassium chloride, ammonium chloride, superphosphate, zinc sulfate, borax and most part of urea (used after fusion) to form inner-layer particles; then spraying mixture of the rest of urea (used after fusion) and amidinothiourea on the inner-layer particles; and coating the outer layer with lecithin. As a sustained-release material (lecithin) and a controlled-release material which is amidinothiourea serving as a urease inhibitor and a nitrification inhibitor are selected and used in the slow release fertilizer, the effective period of a nitrogenous fertilizer is prolonged to 121 days from about 30 days, the effective period of the nitrogenous fertilizer is prolonged greatly, the utilization rate of the nitrogenous fertilizer for cotton is improved greatly, the utilization rate of the nitrogenous fertilizer in a cotton season is improved by 37%, the fixation and the loss of a phosphorus potassium fertilizer are reduced, and the utilization rate of the phosphorus potassium fertilizer in a cotton season is improved by 13% and 5% respectively.

Description

technical field [0001] The invention relates to a lecithin-coated slow-release fertilizer special for cotton and a production method thereof, belonging to the technical field of fertilizers. Background technique [0002] Aiming at the problems of short fertilizer effect period, high application cost, low utilization efficiency and the series of harms to the environment and agricultural products in the current use of chemical fertilizers, the research on slow / controlled release fertilizers is becoming a hot spot in the research of plant nutrition and fertilizers. one of the problems. [0003] At present, the research on coated slow-release fertilizers mainly focuses on the selection of film materials. An ideal coated sustained-release material must have the following characteristics: First, it is non-toxic and harmless. During the production and use of coated slow-release fertilizers, it must be safe to the human body and the surrounding environment; after the coated fertil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/08C05G3/90
CPCY02P60/21
Inventor 孟庆华
Owner 新疆正易龙农资有限公司
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