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Plant natural defoliant and preparation method thereof

A defoliant, a natural technology, applied in botany equipment and methods, plant growth regulators, plant growth regulators, etc., can solve the problem of affecting cotton yield and quality, plant leaves fall off quickly and dry, and the defoliation effect is not ideal, etc. problems, to achieve the effect of reducing soil environmental pollution and pesticide residues, simple preparation method, and saving agricultural production costs

Inactive Publication Date: 2016-04-20
SAAS BIOTECH & NUCLEAR TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The compound preparation containing the herbicide diuron is 540 g / liter Thidiuron · Diuron, which belongs to the chemical defoliation agent. The active ingredient dosage registered by the Ministry of Agriculture of my country is 72.9-97.2 g / ha. Currently, this type of product is in the It is widely used in production and has gradually replaced the use of thiadizuron single agent. Its purpose is to overcome the defect that the defoliation effect of thiadizuron is not ideal at low temperature when it is used alone
However, both thiadiuron and diuron are chemically synthesized agents, and they are usually mixed with ethephon and adjuvants when used. Due to the influence of the herbicide diuron and ethephon, the leaves of the plant may fall off while the cotton is falling. Dry faster, affecting cotton yield and quality

Method used

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  • Plant natural defoliant and preparation method thereof
  • Plant natural defoliant and preparation method thereof
  • Plant natural defoliant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 0.5% abscisic acid, 20% thiadizuron, 7% polyethoxylated alkylphenol, 4.8% magnesium aluminum silicate, 0.2% simethicone, 0.4% antioxidant 264, 0.7% propylene glycol, 66.4% water Sequentially add to the mixer for initial mixing, then soak for 24-30 hours, and then use a sand mill to circulate and grind until the particle diameter LD95 of the system is below 2 microns to obtain a plant natural defoliant.

Embodiment 2

[0036] 0.5% abscisic acid, 15% thiadizuron, 3% polyethoxylated alkylphenol, 6% polyethoxylated fatty amine, 0.2% xanthan gum, 4% magnesium aluminum silicate, 0.1% simethicone , 0.1% polyether modified silicone, 0.3% antioxidant BHT, 0.5% propylene glycol, 0.3% ethylene glycol, and 70% water were added to the mixer in turn for initial mixing, then soaked for 24-30 hours, and then sanded The mill performs circular grinding until the particle diameter LD95 of the system is below 2 microns to obtain the plant natural defoliant.

Embodiment 3

[0038] 1% abscisic acid, 10% thiadizuron, 3% polyethoxylated alkylphenol, 3% fatty alcohol polyglycol ether sulfate, 0.3% sodium alginate, 0.2% xanthan gum, 0.1% dimethyl Base silicone oil, 0.2% polyether modified silicone, 0.2% antioxidant 264, 0.1% antioxidant BHT, 0.6% ethylene glycol, and 81.3% water were added to the mixer in turn for initial mixing, and then soaked for 24-30 Hours, then use a sand mill to carry out circular grinding until the particle diameter LD95 of the system is below 2 microns to obtain the plant natural defoliant.

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Abstract

The invention discloses a natural plant defoliating agent, comprising the following components in percentage by mass: 0.5%-20% of abscisic acid, 0-20% of thidiazuron, 3%-7% of a wetting dispersant, 0.8%-5% of a thickening agent, 0.2%-0.4% of a defoaming agent, 0.2%-0.5% of a stabilizer, 0.3%-0.8% of an antifreezing agent and the balance of water. The invention also provides a preparation method of the natural plant defoliating agent. An abscisic acid existing in a natural plant is adopted as a main component; a herbicide component is not added; ethephon and an adjuvant are not added in use; and the content of an endogenous abscisic acid of the plant is induced to lastingly increase and keep in balance with hormone change by applying the abscisic acid, so that plant defoliation is achieved; the usage amount of a chemical defoliating agent and a chemical pesticide ethephon is reduced; the soil environmental pollution and residues caused by use of large quantity of the chemical pesticide are relieved; the cotton fiber quality is improved; and the agriculture production cost is reduced.

Description

Technical field: [0001] The invention relates to a plant growth regulator used in cotton defoliation and a preparation method thereof, in particular to a plant natural defoliant containing abscisic acid, a natural plant active ingredient, and a preparation method thereof. Background technique: [0002] The basic principle of the defoliant is to form a defoliation layer between the petiole and the stem and let the leaves fall naturally. Thidiazuron, also known as shedding treasure, can promote the formation of the defoliation layer and has been used as a defoliant for a long time, especially in Used in cotton crops (see, eg, "The Pesticide Manual", 11th Edition, British Crop Protection Council, Hampshire 2003). The use of mixtures containing thiadizuron in defoliants has been described, for example, in US Pat. Nos. 4,402,726A and 4,261,726A. [0003] The compound preparation containing the herbicide diuron is 540 g / liter Thidiuron · Diuron, which belongs to the chemical defo...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01P21/00A01N37/42
Inventor 王兰英曾显斌赵国正朱方军陈金春胡海燕曾芸侯勇夏中梅
Owner SAAS BIOTECH & NUCLEAR TECH RES INST