A kind of cotton defoliant auxiliary agent and its preparation and use method

A defoliant and cotton technology, applied in the agricultural field, can solve problems such as failure to achieve defoliation effect, lower yield and quality, cotton can not be opened normally, and achieve the effect of promoting adhesion and dispersion, and protecting a stable state

Active Publication Date: 2021-06-29
INST OF COTTON RES CHINESE ACAD OF AGRI SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, affected by the climate in the cotton area, the temperature in the cotton area in Xinjiang dropped rapidly after entering autumn, and the temperature in the cotton area in the Yellow River Basin also dropped rapidly. If the spraying of the defoliant is delayed, it will not be conducive to the absorption of the pesticide by the leaves and hinder the effect of the pesticide. to the ideal defoliation effect
However, the delayed spraying of defoliants in the Yangtze River Basin will cause the cotton to fail to open bolls before the next crop is planted, which will not only reduce the yield and quality, but also affect the arrangement of autumn crops.
[0004] In the prior art, in order to obtain a better defoliation effect, auxiliary agents are added when spraying cotton defoliants, but the existing cotton defoliant auxiliary agents reduce the surface tension of water, reduce the concentration of liquid medicine and biological The contact angle of the target can increase the coverage of the spray liquid, and promote the rapid absorption of the spray liquid. The spreader and penetrant that resist rain erosion are the main ones. Bolling, but still can not solve the problem of lower top boll weight and lower clothing content after cotton defoliation

Method used

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  • A kind of cotton defoliant auxiliary agent and its preparation and use method
  • A kind of cotton defoliant auxiliary agent and its preparation and use method
  • A kind of cotton defoliant auxiliary agent and its preparation and use method

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preparation example Construction

[0044] A preparation method of cotton defoliant auxiliary agent, is characterized in that, comprises the following steps:

[0045] A. Dissolve calcium chloride in the solvent at first, and stir while adding to form solution A;

[0046] B. After properly cooling to 35°C-45°C, dissolve urea phosphate in solution A to form solution B;

[0047] C. Finally, add glycerol and lauryl betaine to solution B, and use 25-30 kHz ultrasonic waves to fully emulsify and mix for 30-40 minutes to obtain a cotton defoliation agent.

[0048] A method for using a cotton defoliation agent, comprising the following steps: mixing the cotton defoliation agent and the cotton defoliation agent according to a mass ratio of 1 to 2:1 and then spraying them on cotton leaves, and the cotton The dosage of defoliant auxiliary agent is 50g-100g per mu.

[0049] Preferably, the cotton defoliant is Thidiazuron.

Embodiment 1

[0051] A kind of cotton defoliant auxiliary agent, its preparation method is as follows:

[0052] First, 21g of calcium chloride was dissolved in 53g of water, and stirred while adding to form solution A. After solution A was properly cooled, 18g of urea phosphate was dissolved in solution A to form solution B. Finally, 5.5g of glycerin and 2.5g of ten Dialkyl betaine is added to solution B, and fully emulsified and mixed for 30-40 minutes by 25-30 kHz ultrasonic waves to obtain a cotton defoliation aid.

Embodiment 2-8

[0054]A kind of cotton defoliant auxiliary agent, its raw material composition is as shown in table 1

[0055] Each raw material addition in table 1 embodiment 2-embodiment 8

[0056]

[0057] Its preparation steps are identical with embodiment 1.

[0058] For different densities, maturity varieties and leaf function levels, Example 2-Example 8 are different series of synergist formulations. The amount of each raw material in the formula is determined according to the actual growth of cotton in the cotton field, and the functions of the raw materials are fully exploited and utilized. Wherein, embodiments 2, 3, and 5 are suitable for defoliation of mid-early maturing cotton in northern Xinjiang, more specifically, embodiment 2 is suitable for cotton fields with more than 12,000 plants, and example 5 is suitable for cotton fields with a density of less than 10,000 plants. In addition, embodiment 4 is suitable for cotton defoliation in cotton fields in the Yellow River Basin...

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Abstract

The invention discloses a cotton defoliant auxiliary and its preparation and use method, belonging to the technical field of pesticides. The cotton defoliant auxiliary in the invention comprises the following raw materials in mass fraction: calcium chloride 8-40%, urea phosphate 8‑30%, glycerol 1.5‑10%, lauryl betaine 0.1‑5%, solvent 35‑75%. At the same time, the invention also discloses the preparation method and application method of the cotton defoliation aid. The cotton defoliant adjuvant provided by the invention can not only effectively promote the shedding of cotton plant green leaves and cotton boll opening, but also keep the boll weight at the top of the cotton and the clothing content from not significantly reducing after defoliation, thereby ensuring the production of seed cotton and Cotton fiber quality. Moreover, the preparation method provided by the invention is simple and easy to operate, and is suitable for industrial promotion.

Description

technical field [0001] The invention relates to the field of agricultural technology, and more specifically relates to a cotton defoliant auxiliary agent and a method for preparing and using the same. Background technique [0002] At present, Xinjiang cotton region is the largest cotton producing region in my country, with a high degree of intensification. Spraying defoliants during boll opening has become a necessary technical measure for mechanical harvesting of seed cotton. In the cotton area of ​​the Yellow River Basin, due to the low temperature in the early stage of cotton growth and the early onset of autumn frost, the cotton is late-maturing, and in the cotton area of ​​the Yangtze River Basin, interplanting after wheat, oil, and direct-seeding cotton fields will also cause late maturation in the early stage and excessive greening in the later stage. It is necessary to accelerate ripening and defoliation to accelerate the bolling of some autumn and late autumn peache...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/36A01N25/30A01N25/04A01P13/00C05G3/00C05G3/50C05G5/23C05G3/60
CPCA01N25/04A01N25/30A01N47/36C05B15/00C05G3/00C05G3/50C05G5/23C05D3/00
Inventor 郑苍松董合林李鹏程孙淼邵晶晶冯卫娜
Owner INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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