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Compound fertilizer

A technology of compound fertilizer and nutrient fertilizer, applied in the field of compound fertilizer, can solve the problems of late seaweed fertilizer, seaweed fertilizer not meeting market requirements, etc., and achieve the effects of reducing fertilizer damage, reducing waste, and improving yield and quality.

Inactive Publication Date: 2012-07-18
WUHAN ELITE CHEM FERTILIZER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country's seaweed production is the first in the world, accounting for 60% of the world's total production. Seaweed extracts have a variety of nutrients needed for plant growth, and have the effects of promoting plant growth, improving quality, and increasing production. It is very suitable for current agriculture. The need for sustainable development, but the research on seaweed fertilizer in my country started relatively late, and it was only in 2002 that there were related products about fresh seaweed as raw materials
So far, the production of seaweed fertilizer has not met the requirements of the market, and our country is in urgent need of a new type of green and environmentally friendly fertilizer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: The experiment of the compound fertilizer containing γ-polyglutamic acid and seaweed on potted wheat.

[0027] The basic nutrient fertilizer comprises the following components in mass percent: urea 32.1% (15% of nitrogen content in urea), 44.3% of double superphosphate (6.5% of phosphorus content in double superphosphate), potassium chloride 23.6% (the content of potassium element in potassium chloride is 12.5%).

[0028] The compound fertilizer containing gamma-polyglutamic acid and seaweed is based on the above-mentioned basic nutritional fertilizer, adding 0.3wt% of gamma-polyglutamic acid and 0.7wt% of seaweed extract, mixing evenly, granulating and drying.

[0029] The above-mentioned compound fertilizer containing γ-polyglutamic acid and seaweed was used for a pot experiment of wheat. The experiment was carried out in Jiangsu Academy of Agricultural Sciences from October 2010 to July 2011. The experiment was repeated three times with three treatments...

Embodiment 2

[0038] Example 2: Application effect of compound fertilizer containing γ-polyglutamic acid and seaweed on muskmelon.

[0039] The basic nutrient fertilizer comprises the following components in mass percent: urea 32.1% (the content of nitrogen element in urea is 15%), double superphosphate 37.8% (the content of phosphorus element in double superphosphate is 5.6%), calcium superphosphate 8.2% % (the content of phosphorus in superphosphate is 0.5%), potassium chloride 22.0% (the content of potassium in potassium chloride is 11.6%).

[0040] The compound fertilizer containing gamma-polyglutamic acid and seaweed is obtained by adding 1.0wt% of gamma-polyglutamic acid and 0.5wt% of seaweed extract on the basis of the above-mentioned basic nutrient fertilizer, and mixing evenly.

[0041] The compound fertilizer containing gamma-polyglutamic acid is obtained by adding 1.0 wt% of gamma-polyglutamic acid on the basis of the above-mentioned basic nutritional fertilizer, and mixing evenl...

Embodiment 3

[0054] Example 3: Effect of compound fertilizer containing γ-polyglutamic acid and seaweed on the quality of melon.

[0055] The compound fertilizer containing γ-polyglutamic acid and seaweed prepared in Example 1 was tested on field melons, and the test was carried out in Linda Ecological Garden, Pukou District, Nanjing City from March 2011 to June 2011. The test set 3 treatments, 3 repetitions, a total of 9 plots, each plot was 11m long, 1m wide, and the area of ​​the plot was 11m 2 , set up protective rows around, arrange in random blocks, and transplant 21 three-leaf one-hearted melon seedlings in each plot. The test process is as follows:

[0056] Treatment 1 basic nutrient fertilizer, base application;

[0057] Treat 2 compound fertilizers containing γ-polyglutamic acid and seaweed, base application;

[0058] Treat 3 minus 10wt% compound fertilizers containing γ-polyglutamic acid and seaweed, base application;

[0059] Treatment 1 and Treatment 2 correspond to the sa...

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Abstract

The invention disclosed a compound fertilizer which comprises basic nutrition fertilizer including nitrogen, phosphorus and potassium, and also comprises gamma-polyglutamic acid and seaweed extract, wherein the gamma-polyglutamic acid accounts for 0.1-2% of the basic nutrition fertilizer, and the seaweed extract accounts for 0.5-2% of the basic nutrition fertilizer. The compound fertilizer containing the gamma-polyglutamic acid and the seaweed extract has high activity biological function, and is capable of improving the yield and the resistance capability such as disease resistance, drought resistance, cold resistance, lodging resistance and the like of crops. Therefore, the compound fertilizer can be widely applied to grain crops such as wheat, rice, corn and the like, and cash crops such as tomatoes, melons, grapes and the like. One-off fertilization can be realized without topdressing, and the yield of the crops can be increased by 10-30%.

Description

technical field [0001] The invention relates to a compound fertilizer containing gamma-polyglutamic acid and seaweed, belonging to the technical field of biological fertilizers. Background technique [0002] my country is a large agricultural country in the world, and the use of chemical fertilizers is very large. The use of a large number of chemical fertilizers and pesticides has solved the problem of food supply and increased food production. However, the use of chemical fertilizers has brought about great environmental problems, such as low utilization rate of fertilizers, decline of land quality, water pollution, and decline of stress resistance of crops, etc., which greatly threaten the sustainable development of agriculture. [0003] γ-polyglutamic acid has many unique physical, chemical and biological properties such as excellent biodegradability, film-forming property, fibrillation property, plasticity, cohesiveness, moisture retention, etc. It can be used in cosme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 徐虹万传宝张扬冯小海许宗奇李莎欧阳平凯
Owner WUHAN ELITE CHEM FERTILIZER
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