CN111955457A

CN111955457A - Cotton topping agent containing effective components of flumetralin and mepiquat chloride

Info

Publication number: CN111955457A
Application number: CN202010764412.8A
Authority: CN
Inventors: 张黎明; 史军超
Original assignee: Zhong Mian Xiao Kang Biotechnology Co ltd
Current assignee: Zhong Mian Xiao Kang Biotechnology Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2020-11-20

Abstract

The invention belongs to the field of pesticides, researches and develops a plant growth regulator taking flumetralin, mepiquat chloride/chlormequat chloride and alachlor as active ingredients, is applied to chemical topping of cotton, and has the effects of inhibiting the growth of terminal buds and lateral buds, inhibiting the elongation of stem nodes of cotton plants, shaping high-yield plant types and promoting the photosynthesis of the cotton plants, so that the quality and the yield of the cotton can be improved, and the integral dosage is obviously reduced.

Description

Cotton topping agent containing effective components of flumetralin and mepiquat chloride

Technical Field

The invention belongs to the field of pesticides, and particularly relates to a plant growth regulator composition which takes flumetralin, mepiquat chloride/chlormequat chloride and alachlor as main active ingredients, and is applied to chemical topping of cotton by being supplemented with various auxiliaries.

Background

The cotton is a plant with infinite growth characteristic, has the characteristics of longitudinal and transverse infinite growth and development under the conditions of proper illumination, temperature, water and fertilizer and the like, and is often over-vigorous in vegetative growth caused by excessive rainwater and high temperature, so that vegetative growth and reproductive growth are not coordinated, and the cotton is premature senility, the bud bolls drop seriously, and the yield and the quality are reduced. Therefore, the relationship of coordinating the vegetative growth and reproductive growth of cotton is a crucial factor for the high quality, high yield and high efficiency of cotton. The continuous growth of the main stem is blocked by topping, so that the nutrition of the cotton is transferred to reproductive organs, and the conversion from the vegetative growth to the reproductive growth is a universal means in cotton planting.

Flumetralin is a dinitroaniline compound, and the physiological activity of the compound on plants is shown as follows: the mitosis of plant cells is inhibited by the influence on tubulin, so that the meristem with active cell division is strongly inhibited. The elongation effect on the plant cells is not obvious. The flumetralin is more used as a lateral bud inhibitor after tobacco topping. In recent years, the method is more used for application tests in the aspect of chemical topping of cotton.

Alachlor is a methoxyaniline compound, is usually used as a selective preemergence herbicide, is mainly absorbed by coleoptiles of weeds, and can be absorbed by roots and seeds in a small amount. Mainly kills weeds germinating in the soil before emergence of seedlings and has no effect on emerged weeds.

The mepiquat chloride is a dimethyl piperidinium compound and is also a quaternary ammonium salt plant growth regulator, and the synthesis of kaurene which is a precursor for synthesizing gibberellin in plants is inhibited to regulate and control the level of gibberellin in plants, so that the effects of inhibiting internode elongation, controlling plant types, promoting roots and strong seedlings, improving the chlorophyll content of leaves and the like are achieved. Is a necessary regulator for regulating and controlling the plant type of cotton. The chlormequat chloride with the chemical name of 2-chloroethyltrimethyl ammonium chloride is a quaternary ammonium salt compound, and the action mechanism of the chlormequat chloride is similar to that of mepiquat chloride, and the synthesis of a precursor kaurene synthesized by gibberellin in a plant is inhibited to regulate the level of gibberellin in the plant, so that the effects of inhibiting internode elongation, controlling the plant type, promoting the roots and the seedlings, improving the chlorophyll content of leaves and the like are achieved.

The quality of various modes of pinching compares, and traditional manual work is pinched and is accurate, nimble to getting rid of the apical bud, but can have the condition of neglected beating, and people's activity can produce the condition that rubs, involves and cause the drop bell or even injure the branch to bud bell or even bottom fruit branch, and along with the change of social manual work distribution, the recruitment cost increases by a wide margin. The machine is used for topping, the cost is low, but the topping is inaccurate and inflexible, the fluctuation of the ground can cause influence, and the conditions of ring falling and even branch damage caused by friction and dragging also exist. The chemical topping is low in cost, especially, the situation that the unmanned aerial vehicle flying in recent years arouses flies to prevent pesticide application and avoids falling bolls and injuring branches caused by friction drag, but the flumetralin has certain negative effect on cotton plants, reduces the photosynthetic rate of blades, has stronger stimulation to upper-layer younger bolls, and easily causes the situation that the upper-layer bolls fall off or even a plurality of upper-layer empty fruit branches. In conclusion, various topping schemes have advantages and disadvantages respectively, the lower layer of bud bell fruit branches are easy to be damaged by manual topping, and finally tests with different yield statistics also have advantages and disadvantages respectively. However, with the rising of labor cost, the cost of manual topping is rising, so that chemical topping is an inevitable choice for cotton planting.

The invention discloses a cotton pruning synergist (patent number: 201010131320.2), and discloses a cotton topping agent prepared by compounding flumetralin and mepiquat chloride. The invention patent application (application number: 2020102398818) of the company also discloses a cotton topping agent which is compounded by the ingredients of flumetralin and chlormequat chloride.

Through research, the alachlor has a good synergistic effect on the flumetralin + chlormequat/mepiquat cotton topping composition, and the overall dosage can be greatly reduced by adding the alachlor component, so that the aims of reducing pesticide and fertilizer application and ensuring yield and income of cotton are fulfilled.

Disclosure of Invention

The invention provides a plant growth regulator composition which takes flumetralin, mepiquat chloride/chlormequat chloride and alachlor as main active ingredients. Wherein, the pesticide comprises 5 to 30 parts of flumetralin, 0 to 25 parts of mepiquat chloride, 0 to 20 parts of chlormequat chloride and 0.5 to 5 parts of alachlor. Auxiliary agents and fillers make up 100 parts.

The parts of chlormequat chloride and mepiquat chloride in the composition are not zero at the same time.

Through the comprehensive action of the effective components, the invention has the effects of inhibiting the growth of terminal buds and lateral buds, inhibiting the elongation of the stem nodes of cotton plants, shaping high-yield plant types and promoting the photosynthesis of the cotton plants, not only can improve the quality and the yield of cotton, but also obviously reduce the integral dosage.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to specific embodiments. However, the present invention is not limited to the following examples.

Example 1

200g of fluvalinamide, 150g of mepiquat chloride, 20g of alachlor, 20g of a dispersing agent LT-766A, 10g of pectinate polycarboxylate, 15g of sodium sulfosuccinate sulfonate, 5g of xanthan gum, 20g of fumed silica, 20g of magnesium aluminum silicate, 5g of sodium benzoate and water for supplementing 1000 g. High speed dispersion for 30 minutes, and then sanding for 20 minutes in an RTSM0.5AD sand mill. Thus obtaining the product.

Example 2

200g of flumetralin, 100g of chlormequat chloride, 20g of alachlor, 20g of a dispersing agent LT-766A20g, 10g of pectinate polycarboxylate, 15g of sodium sulfosuccinate, 5g of xanthan gum, 20g of fumed silica, 20g of magnesium aluminum silicate, 5g of sodium benzoate and water for supplementing 1000 g. High speed dispersion for 30 minutes, and then sanding for 20 minutes in an RTSM0.5AD sand mill. Thus obtaining the product.

Test of field drug effect

Test time: 4 months in 2018 to 12 months in 2018.

Test site: the cotton research institute test base (Anyang city white town, Henan province).

And (3) test crops: cotton.

Test subjects: chemical topping and production increase.

The cotton variety used in the test is conventional cotton institute 60(CCRI 60), the field test is carried out in 2018 at the test base of cotton institute of agricultural sciences (white town of Anyang city) of Anyang city, Henan province, the soil type is light loam, the cotton is continuously planted for many years, and the growth vigor of the cotton is stable. The sowing date is 4 months and 20 days, a mulching film covering mode is adopted, 1 film and 2 lines are adopted, the line spacing is 80cm, and the conventional mode is adopted for fertilization and irrigation. The experiment is totally provided with 5 cells, the plant growth regulator combination prepared in the embodiment 1-2 is respectively used for treatment by using 35% of flumetralin-mepiquat chloride suspending agent, 250g/L of mepiquat chloride aqueous solution, 50% of chlormequat chloride aqueous solution and clear water for comparison, and the treatment is repeated for 3 times. The medicine is applied 2 times in 6 months, 21 days and 7 months, 10 days. And other fields are uniformly managed normally. Harvesting twice in 10 months and 15 days and 11 months and 13 days, manually picking, and examining species and investigating yield.

The test data are as follows:

therefore, the scheme of the invention forms a synergistic effect with other effective components by adding the preemergence herbicide alachlor into the regulator in a proper amount. The control degree of the terminal bud and the overall plant height are both obviously controlled, and the yield is also obviously increased. Provides an excellent scheme for cost saving and yield increase of cotton farmers.

Claims

1. A cotton topping agent comprises the following components: flumetralin, mepiquat chloride/chlormequat chloride and alachlor.

2. A cotton topping agent based on claim 1, which is characterized in that the effective components comprise flumetralin: mepiquat chloride: chlormequat chloride: 5-30% of alachlor: 0 to 25: 0 to 20: 0.5 to 5.

3. The cotton topping agent based on the claims 1-2 is mainly characterized in that the cotton topping agent can be prepared into a suspending agent by adding a certain auxiliary agent and processing through a certain process.

4. The cotton topping agent based on the claims 1-2 is mainly characterized in that the pre-emergence herbicide alachlor is added to play a synergistic role with other effective components, so that the application dosage of the topping agent is reduced under the condition of ensuring the topping effect.