Soil phosphorus passivator with root promoting function

A technology of soil phosphorus and passivating agent, which is applied in application, fertilizer mixture, fertilization device, etc., can solve the problems of unconsidered effective phosphorus intensity, crop phosphorus supply shortage, crop yield reduction, etc., and achieve resistance to root-knot nematode infestation, Achieve sustainable development and increase quality

Active Publication Date: 2017-11-07
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it does not take into account the available phosphorus intensity required by crops, which may cause insufficient phosphorus supply to crops after application, resulting in crop yield reduction

Method used

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  • Soil phosphorus passivator with root promoting function
  • Soil phosphorus passivator with root promoting function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A soil phosphorus passivator with a root-promoting effect, consisting of the following parts by weight: 16 parts of water, 30 parts of aluminum hydroxide, 30 parts of iron hydroxide, 18 parts of polyaspartic acid, hexametaphosphoric acid 3 parts of sodium, 4 parts of glycerol, 7 parts of abamectin.

[0018] The above-mentioned preparation method of the soil phosphorus passivator with root-stimulating effect is carried out according to the following steps:

[0019] (1) Add water, aluminum hydroxide, iron hydroxide, and polyaspartic acid to the reactor at 1500 rpm and a temperature of 60 degrees, and stir for 20 minutes to prepare 87% saturated mother liquor;

[0020] (2) Add sodium hexametaphosphate, glycerol and avermectin to the reaction kettle to disperse evenly into the water phase, and continue to stir at 3000 rpm for 20 minutes, then grind for 30 minutes with an ultrafine grinder Minutes, made.

Embodiment 2

[0022] A soil phosphorus passivator with a root-promoting effect, consisting of the following parts by weight: 15 parts of water, 27 parts of aluminum hydroxide, 27 parts of iron hydroxide, 15 parts of alginic acid, 2 parts of Morwet D-500 , Pull open powder BX 2 parts, tributyl phosphate 2 parts, Shenzimycin 3 parts, lauric acid 3 parts.

[0023] The above-mentioned preparation method of the soil phosphorus passivator with root-stimulating effect is carried out according to the following steps:

[0024] (1) Add water, aluminum hydroxide, iron hydroxide and alginic acid to the reaction kettle at 1000 rpm and a temperature of 60 degrees, and stir for 10 minutes to prepare 85% saturated mother liquor;

[0025] (2) Add Morwet D-500, pull apart powder BX, tributyl phosphate, shenzamycin and lauric acid to the reaction kettle to disperse evenly into the water phase, and continue stirring at 1500 rpm for 30 Minutes, and then grind for 10 minutes with a superfine grinder to make.

Embodiment 3

[0027] A soil phosphorus passivator with a root-promoting effect, consisting of the following parts by weight: 18 parts of water, 32 parts of aluminum hydroxide, 32 parts of iron hydroxide, 20 parts of potassium fulvic acid, YUS-EP60P 2 2 parts, 2 parts of octanol, 2 parts of polyethylene glycol, 2 parts of magnesium aluminum silicate, 8 parts of linoleic acid.

[0028] The above-mentioned preparation method of the soil phosphorus passivator with root-stimulating effect is carried out according to the following steps:

[0029] (1) At 2000 rpm and a temperature of 60 degrees, add water, aluminum hydroxide, iron hydroxide, and potassium fulvic acid to the reactor, stir for 30 minutes, and prepare a 90% saturated mother liquor;

[0030] (2) Add compound emulsifier and anti-nematode agent to the reaction kettle to disperse evenly into the water phase, continue to stir at 6000 rpm for 30 minutes, and grind for 40 minutes with an ultrafine grinder to prepare.

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Abstract

The invention discloses a soil phosphorus passivator with a root promoting function and belongs to the technical field of agriculture. The soil phosphorus passivator comprises the following components in parts by weight: 15-18 parts of water, 25-30 parts of aluminum hydroxide, 25-30 parts of ferric hydroxide, 10-20 parts of root promoter, 5-8 parts of compound emulsifier and 5-8 parts of nematode resisting agent. The passivator is capable of reducing rapid available phosphorus in soil, reducing phosphorus cleaning risk, promoting the growth of plant root systems under the bio-stimulation effect of active substance and reducing the requirement of the crops for critical supply concentration of available phosphorus of soil in root zone; the passivator contains some nematode-resisting matters, is capable of resisting against nematode and guaranteeing the healthy growth of the root systems and belongs to an environment-friendly healthy soil regulator; and meanwhile, the technical processes of suspension additive, ultra-micro grinder and high-speed dispersion machine are adopted for researching, the process is simple, the grinding volume of the materials is reduced, the fertilizer is high in stability, uniformity and liquidity and the passivator will not layer or precipitate after long-term storage.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and specifically relates to a soil phosphorus passivator for promoting roots, resisting nematodes, regulating soil available phosphorus content, and reducing the risk of soil phosphorus leaching and a preparation method thereof. Background technique [0002] Vegetables have a shallow root layer and low root length and density, and the demand for nutrient supply intensity is significantly higher than that of field crops. Therefore, fertilizer application is very important in vegetable field production. Manure has the characteristics of wide sources, rapid improvement of soil fertility and low price. Manure application has become an indispensable measure in vegetable production. However, farmers still use a large amount of chemical fertilizers on the basis of a large amount of manure, resulting in nitrogen and phosphorus surpluses to varying degrees in almost all vegetable production systems. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/02C05G3/04C05G3/60C05G3/80
CPCC05G3/00C05G3/60C05G3/80
Inventor 陈清樊秉乾王祺严正娟陈硕郜斌斌周爽
Owner CHINA AGRI UNIV
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