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Fertilizer composition and use thereof

A composition and fertilizer technology, applied in the directions of fertilizer mixture, application, fertilization device, etc., can solve the problems of high cost, increased labor and production cost, inconvenient application, etc., to save production cost, improve chemical fertilizer utilization rate, and reduce chemical fertilizer. effect of dosage

Active Publication Date: 2009-03-25
秦皇岛领先康地农业技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is used at a high concentration, the cost is relatively expensive, and it is not suitable for agricultural production. In addition, the patent only involves seed coating and direct application, which is inconvenient to apply and increases labor and production costs.

Method used

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  • Fertilizer composition and use thereof
  • Fertilizer composition and use thereof
  • Fertilizer composition and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] 40 grams of γ-polyglutamic acid made by the inventors were added to 2667 ml of water at 80° C., stirred and dissolved for 1 hour to obtain an aqueous solution of γ-polyglutamic acid. Then take by weighing 25 kilograms of granular compound fertilizer (N-P 2 o 5 -K 2 O 15-15-15), added to the drum granulator sold by Siping Lishan Machinery Manufacturing Co., Ltd. under the brand name of "Lishan", when the drum speed of the drum granulator reaches 80 rpm, use 0.1MP a Compressed air sprays the prepared gamma-polyglutamic acid aqueous solution onto the granular compound fertilizer in the drum at a flow rate of 200 ml / min, and simultaneously feeds hot air at 80°C for drying, and obtains the granular fertilizer of the present invention after cooling.

[0055] 25 kg of the obtained granular fertilizer is directly used as a base fertilizer to plant corn, and the application amount is equivalent to 40 g of γ-polyglutamic acid / mu, and no topdressing is needed in the later stage....

Embodiment 2

[0057] 40 grams of γ-polyglutamic acid made by the inventor were added to 1333 milliliters of water at 60° C., stirred and dissolved for 1 hour to obtain an aqueous solution of γ-polyglutamic acid. Then weigh 15 kg of urea sold by Shandong Luxi Chemical Co., Ltd. under the brand name "Luxi", and add it to the drum granulator sold by Siping Lishan Machinery Manufacturing Co., Ltd. under the brand name "Lishan". When the drum speed reaches 70 rpm, use 0.1MP a Compressed air sprays the prepared gamma-polyglutamic acid aqueous solution onto the granular urea in the drum at a flow rate of 100 ml / min, and simultaneously feeds normal temperature wind for drying, and obtains the granular fertilizer of the present invention after cooling.

Embodiment 3

[0059] 50 grams of sodium γ-polyglutamate made by the inventors were added to 5000 ml of water at 40° C., stirred and dissolved for 1 hour to obtain an aqueous solution of γ-polyglutamate. Then weigh 50 kilograms of the bio-organic fertilizer sold by our company under the brand of "Fusid" and add it to the drum granulator sold by Siping Lishan Machinery Manufacturing Co., Ltd. under the brand "Lishan". When the drum speed reaches 100 rpm, use 0.1MP a Compressed air sprays the prepared gamma-polyglutamic acid aqueous solution onto the granular bio-organic fertilizer in the drum at a flow rate of 100 ml / min, while passing hot air at 40°C for drying, and cooling to obtain the granular fertilizer of the present invention.

[0060] 50 kg of the obtained granular fertilizer is directly used as a base fertilizer to plant roses, and the application rate is equivalent to 50 grams of γ-polyglutamic acid per mu. Simultaneously, use the same bio-organic fertilizer 55 kg / mu sold by the co...

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Abstract

The invention relates to a fertilizer prepared by utilizing Gamma-polyglutamic acid, fertilizers and adsorbents. The fertilizer can be used directly, reduce the fertilizer loss, reduce the fertilizer use level, improve the fertilizer utilization ratio, lower the production cost and reduce the environmental pollution. Compared with the normally used fertilizer with the same nutrient elements, the fertilizer use level can be reduced by 20 to 30 percent and the yield can be increased by 10 to 15 percent.

Description

【Technical field】 [0001] The invention relates to the technical field of fertilizers. More specifically, the present invention relates to a fertilizer prepared by using γ-polyglutamic acid, and also relates to the use of said fertilizer. 【Background technique】 [0002] Polyglutamic acid (γ-polyglutamic acid, γ-PGA) is a water-soluble polyamino acid produced by microbial fermentation. It is a high molecular polymer in which glutamic acid units form peptide bonds through α-amino and γ-carboxyl groups. The molecular weight distribution is 100kDa-10000kDa. γ-polyglutamic acid has excellent water absorption, super adsorption and biodegradability, and the degradation product is pollution-free glutamic acid. It is an excellent environment-friendly polymer material and can be used as a water-retaining agent, heavy metal Ionic adsorbents, flocculants, slow-release agents and drug carriers, etc., have great commercial and social value in cosmetics, environmental protection, food, me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 王永长徐志文孟永宏
Owner 秦皇岛领先康地农业技术有限公司
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