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Composite synergist containing polyglutamic acid and potassium fulvic acid and application of composite synergist

A technology of polyglutamic acid and potassium fulvic acid, which is applied in application, fertilizer mixture, fertilization equipment, etc., can solve the problems of less research on natural substances, achieve the effects of improving crop quality, reducing content, and enhancing stress resistance

Pending Publication Date: 2018-01-30
NANJING SHINEKING BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, the research on fertilizer synergists has gradually increased, but these studies are mainly on the research and application of chemical inhibitors, and the research on natural substances on fertilizer synergists is less

Method used

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  • Composite synergist containing polyglutamic acid and potassium fulvic acid and application of composite synergist
  • Composite synergist containing polyglutamic acid and potassium fulvic acid and application of composite synergist
  • Composite synergist containing polyglutamic acid and potassium fulvic acid and application of composite synergist

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Prepare the composite fertilizer synergist containing polyglutamic acid and potassium fulvic acid of the present invention according to the following method:

[0032] The polyglutamic acid used is a wettable powder containing polyglutamic acid, which is prepared by drying the polyglutamic acid fermentation broth, wherein the polyglutamic acid content is 30%, and the molecular weight is 700kDa; the potassium fulvic acid used is Commercially available potassium fulvate powder, wherein the content of potassium fulvate is ≥50%

[0033] The ingredients of polyglutamic acid powder, potassium fulvic acid powder and auxiliary materials (mixed by molasses powder and dolomite in a ratio of 1:1) are prepared according to the weight ratio of 1:0.2:0.4. Compound fertilizer synergist of potassium fulvic acid.

Embodiment 2

[0035] The coated fertilizer of the compound fertilizer synergist containing polyglutamic acid and potassium fulvic acid of the present invention is prepared according to the following steps.

[0036] Melt urea (140-145°C) and ammonium phosphate, potassium chloride, and auxiliary materials (bentonite) after preheating (preheating temperature is 60-70°C) according to the preset weight ratio of 25.4:33.3:25:16.3 Mix in the mixing tank. After the mixture reacts to form a fertilizer slurry with good fluidity, it is sprayed into the prilling tower through a rotary differential nozzle. At this time, the composite synergist (refer to Example 1) is dissolved in water and mixed. After atomization, it is sprayed into the granulation tower, and the spraying direction of the atomized liquid is perpendicular to the direction of the fertilizer falling. The total addition amount of the compound fertilizer synergist is 1‰ of the mass of the fertilizer granules, and then the fertilizer granule...

Embodiment 3

[0038] The additive fertilizer of the compound fertilizer synergist containing polyglutamic acid and potassium fulvic acid of the present invention is prepared according to the following steps.

[0039] After melting urea (130-140° C.) and preheated (preheating temperature is 60-70° C.), ammonium phosphate, potassium chloride, auxiliary material (bentonite) and compound fertilizer synergist (referring to Example 1) according to The ratio of parts by weight is 25.4:33.3:25:16.3:0.1 and mixed in the mixing tank. After the mixture reacts to form a fertilizer slurry with good fluidity, it is sprayed into the prilling tower through the rotary differential nozzle, cooled and solidified into granules in the air , and then transported into the cooling tower for further cooling to obtain the added fertilizer of the compound fertilizer synergist containing polyglutamic acid and potassium fulvic acid.

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Abstract

The present invention discloses a composite synergist containing polyglutamic acid and potassium fulvic acid. The composite synergist comprises the polyglutamic acid and the potassium fulvic acid, wherein the weight ratio of the polyglutamic acid to the potassium fulvic acid is 1:(0.001-0.5). The invention also discloses an application of the above composite synergist containing the polyglutamic acid and the potassium fulvic acid. The synergistic fertilizer prepared by using the composite fertilizer synergist provided by the invention effectively promotes the growth and development of crops, increases the yields of food crops, leafy vegetables and melon and fruit economic crops, and significantly improves the utilization rate of the fertilizer.

Description

technical field [0001] The invention relates to a composite fertilizer synergist containing polyglutamic acid and potassium fulvic acid and its application, belonging to the technical field of biological preparations. Background technique [0002] my country is a big country in the use of chemical fertilizers. The annual consumption of chemical fertilizers is as high as 50 million tons (converted to pure nitrogen, phosphorus and potassium), which has made outstanding contributions to agricultural development and grain production. However, the utilization rate of nitrogen fertilizer in the current season is only 35%, and the low fertilizer utilization rate has always been a problem in China's agricultural fertilization. The loss of a large amount of fertilizer not only causes huge economic losses, but also causes serious environmental pollution. Therefore, in order to meet the requirements of the development of modern agriculture and overcome the bottleneck of resource and e...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/00C05G3/80
Inventor 许宗奇梁金丰徐虹冯小海詹伊婧
Owner NANJING SHINEKING BIOTECH CO LTD
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