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A kind of cotton topping agent and its preparation and application method

A technology for topping agent and cotton, which is applied to the cotton topping agent and the fields of its preparation and application, can solve the problems of labor and the like, save labor and input, increase the number of bolls per plant, and inhibit the formation of new main stems and fruit branches of cotton. Effect

Active Publication Date: 2022-02-22
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The planting method of direct-seeding cotton after wheat is aimed at the problems existing in seedling transplanting cotton. In addition to alleviating the contradiction between grain and cotton, it can fully realize mechanization and simplify production from sowing to harvest. However, due to the greatly increased planting density, this new planting method If manual topping is still used, it will cause more labor

Method used

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  • A kind of cotton topping agent and its preparation and application method
  • A kind of cotton topping agent and its preparation and application method
  • A kind of cotton topping agent and its preparation and application method

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preparation example Construction

[0023] The invention provides the preparation method of the cotton topping agent, which comprises the following steps: grinding and mixing the first component and the second component to obtain the cotton topping agent.

[0024] The invention provides the application of the cotton topping agent described in the above technical solution in cotton topping. In the present invention, the cotton is preferably direct seeded cotton in an area with high temperature, much rain, and high humidity. The temperature is preferably above 28° C., the precipitation is preferably above 180 mm per month, and the humidity is 80-90°C. %; For example, the cotton topping agent can be applied to the direct seeding cotton after harvesting wheat oil in the Yangtze River Basin.

[0025] The cotton topping agent of the present invention is suitable for topping cotton in areas with high planting density; the planting density of the cotton is preferably 6000-8000 plants / mu.

[0026] The cotton topping age...

Embodiment 1

[0035] The preparation of cotton topping agent: take by weighing 2-chloroethyltrimethylammonium chloride 3.5g, carbamoyl phosphate ethyl ammonium salt 6.5g and mix by preparing 10g (one mu of field consumption) cotton chemical topping agent, Grind and stir well.

[0036] Test site and planting method: Dafeng Rice and Wheat Original Seed Field Cotton Test Field, Dafeng District, Yancheng City, Jiangsu Province, with an area of ​​30 mu. The variety is Zhongmiansuo 50, which was sown after the barley harvest on May 25. The planting density is 6000 plants / mu.

[0037] Test time: August 5, 2019, spraying at 10:00 in the morning, with 11 fruit branches and 40 fruit nodes per plant, the plant height is 85cm, and the soil moisture content is 60% of the maximum field water holding capacity. After spraying, the average temperature in August was 28.7°C, the number of rainy days was 9 days, the rainfall reached 200.7mm, and the air humidity reached 85%.

[0038] Experimental design: Af...

Embodiment 2

[0046] The preparation of cotton topping agent: take by weighing 4.5g of 2-chloroethyltrimethylammonium chloride, 5.5g of carbamoyl phosphate ethyl ammonium salt and mix by preparing 10g (one mu of field consumption) cotton chemical topping agent, Grind and stir well.

[0047] Experimental design: use the cotton topping agent provided in Example 2 of the present invention to spray manually, and use manual topping and no topping (clear water) as controls, and repeat 3 groups of experiments.

[0048] Test site and planting method: Cotton test field in Dafeng Rice and Wheat Original Seed Farm, Dafeng District, Yancheng City, Jiangsu Province, with an area of ​​20 mu. The variety is Zhongmiansuo 50, which was sown after the rapeseed was harvested on May 25. The planting density is 7000 plants / mu.

[0049] Test time: August 5, 2018, spraying at 10:00 in the morning, with 10 fruit branches, 40 fruit nodes per plant, plant height of 75cm, and soil moisture content of 60% of the max...

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Abstract

The invention belongs to the technical field of cotton production, and in particular relates to a cotton topping agent and its preparation and application method. The cotton topping agent comprises the following components in mass percentage: 35-45% of the first component and 55-65% of the second component; the first component is 2-chloroethyl trimethyl chloride ammonium chloride and / or N,N-dimethylpiperidinium chloride; the second component is ethyl ammonium carbamoyl phosphate and / or N-(2-chloro-fluorobenzyl)-N- Ethyl-α, α, α-trifluoro-2,6-dinitro-p-toluidine, the results of the embodiment show that this chemical topping agent is suitable for high temperature, rainy, high-humidity environments, and can significantly Reduce the plant height of new main stems and fruiting branches of cotton, increase the number of bolls per plant; increase the chlorophyll content of leaves, and significantly enhance the photosynthetic intensity; reduce the shedding rate of buds and bolls, and increase the yield of seed cotton; more than 0.5 labor inputs can be saved per mu.

Description

technical field [0001] The invention belongs to the technical field of cotton production, and in particular relates to a cotton topping agent and its preparation and application method. Background technique [0002] With the improvement of urbanization and economic level in our country, the rural labor force structure has undergone significant changes. Agricultural production is mainly dominated by the elderly and women. It has become inevitable for modern production to simplify planting and harvesting. Therefore, the intensive cultivation and cotton planting technology of nutrient pot seedling transplanting in the Yangtze River Basin is unsustainable. With respect to its reason, mainly be that this planting method takes a lot of labor, labor intensity is big, and duration is long. The planting method of direct-seeding cotton after wheat is aimed at the problems existing in seedling transplanting cotton. In addition to alleviating the contradiction between grain and cotton,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N33/12A01N33/06A01N57/12A01P21/00A01G7/06A01G22/50
CPCA01N33/12A01N33/06A01N57/12A01G22/50A01G7/06
Inventor 张祥田巧凤陈源陈媛陈德华
Owner YANGZHOU UNIV
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