阅读说明：本技术 棉花打顶用高效稳定的甲哌鎓打顶剂及制备方法和应用 (Efficient and stable mepiquat chloride topping agent for cotton topping and preparation method and application thereof ) 是由 张卫 李翠英 于 2021-09-10 设计创作，主要内容包括：本申请涉及棉花打顶技术领域,具体公开了一种棉花打顶用高效稳定的甲哌鎓打顶剂及制备方法和应用,甲哌鎓打顶剂由包含以下重量百分数的原料制备而成：甲哌鎓原药28-32.65%、异辛酸盐1-3%、助剂25-35%,余量为水；助剂包含以下原料制备而成：脂肪醇聚氧乙烯醚、牛脂胺聚氧乙烯醚磷酸酯缩聚物、苯乙烯基苯酚聚氧乙烯醚、十二烷基羟丙基磺基甜菜碱、烷基糖苷、十二烷基苯磺酸钙、十二烷基三甲基氯化铵、琥珀酸二辛酯磺酸钠。该甲哌鎓打顶剂,通过甲哌鎓、异辛酸盐、助剂之间的协同作用,在保持其具有良好存储稳定性的基础上,提高了甲哌鎓的质量浓度,使甲哌鎓打顶剂具有成本低、便于加工、使用简便、存储稳定、药效高的优点。(The application relates to the technical field of cotton topping, and particularly discloses a high-efficiency and stable mepiquat chloride topping agent for cotton topping, a preparation method and an application thereof, wherein the mepiquat chloride topping agent is prepared from the following raw materials in percentage by weight: 28-32.65% of mepiquat chloride technical, 1-3% of isooctanoate, 25-35% of auxiliary agent and the balance of water; the auxiliary agent is prepared from the following raw materials: fatty alcohol-polyoxyethylene ether, tallow amine polyoxyethylene ether phosphate polycondensate, styryl phenol polyoxyethylene ether, dodecyl hydroxypropyl sulphobetaine, alkyl glycoside, calcium dodecyl benzene sulfonate, dodecyl trimethyl ammonium chloride and dioctyl sodium sulfosuccinate. The mepiquat chloride topping agent improves the quality concentration of the mepiquat chloride on the basis of keeping good storage stability through the synergistic effect of the mepiquat chloride, the iso-octoate and the auxiliary agent, so that the mepiquat chloride topping agent has the advantages of low cost, convenience in processing, simplicity and convenience in use, stable storage and high drug effect.)

1. The efficient and stable mepiquat chloride topping agent for cotton topping is characterized in that: the mepiquat chloride topping agent is prepared from the following raw materials in percentage by weight: 28-32.65% of mepiquat chloride technical, 1-3% of isooctanoate, 25-35% of auxiliary agent and the balance of water;

the auxiliary agent is prepared from the following raw materials in percentage by weight: 3-5% of fatty alcohol-polyoxyethylene ether, 7-9% of tallow amine polyoxyethylene ether phosphate polycondensate, 10-15% of styryl phenol polyoxyethylene ether, 10-20% of dodecyl hydroxypropyl sulphobetaine, 25-35% of alkyl glycoside, 3-7% of calcium dodecyl benzene sulfonate, 20-25% of dodecyl trimethyl ammonium chloride and 2-4% of dioctyl sodium sulfosuccinate.

2. The highly effective stable mepiquat chloride topping for cotton topping according to claim 1, characterized in that: the auxiliary agent is prepared from the following raw materials in percentage by weight: 4% of fatty alcohol-polyoxyethylene ether, 8% of tallow amine polyoxyethylene ether phosphate polycondensate, 12% of styryl phenol polyoxyethylene ether, 15% of dodecyl hydroxypropyl sulfobetaine, 30% of alkyl glycoside, 5% of calcium dodecyl benzene sulfonate, 23% of dodecyl trimethyl ammonium chloride and 3% of dioctyl sodium sulfosuccinate.

3. The highly effective stable mepiquat chloride topping for cotton topping according to claim 1, characterized in that: the mepiquat chloride topping agent is prepared from the following raw materials in percentage by weight: 32.65% of mepiquat chloride technical, 2% of isooctanoate, 30% of auxiliary agent and the balance of water.

4. The highly effective stable mepiquat chloride topping for cotton topping according to claim 1, characterized in that: the isooctoate is one or more of zinc isooctanoate, calcium isooctanoate and cobalt isooctanoate.

5. The highly effective stable mepiquat chloride topping for cotton topping according to claim 1, characterized in that: the mass concentration of the mepiquat chloride in the mepiquat chloride raw medicine is 98%.

6. The highly effective stable mepiquat chloride topping for cotton topping according to claim 1, characterized in that: the auxiliary agent is prepared by the following method: fully stirring and uniformly mixing fatty alcohol-polyoxyethylene ether, a tallow amine polyoxyethylene ether phosphate polycondensate, styryl phenol polyoxyethylene ether, dodecyl hydroxypropyl sulphobetaine, alkyl glycoside, calcium dodecyl benzene sulfonate, dodecyl trimethyl ammonium chloride and dioctyl sodium sulfosuccinate to obtain the assistant.

7. The preparation method of the efficient and stable mepiquat chloride topping agent for cotton topping as claimed in any one of claims 1 to 6, characterized in that: the preparation method comprises the following steps:

stirring and uniformly mixing the mepiquat chloride original drug and water, then adding the auxiliary agent, continuously stirring and uniformly mixing, then adding the iso-octoate, and continuously stirring and uniformly mixing to obtain the mepiquat chloride topping agent.

8. Use of a highly potent and stable mepiquat chloride topping for cotton topping according to any one of claims 1 to 6, characterized in that: application of mepiquat chloride topping agent in cotton topping treatment.

9. The use of a highly potent and stable mepiquat chloride topping for cotton topping as claimed in claim 8 wherein: the topping treatment adopts the following method: stirring and uniformly mixing the mepiquat chloride topping agent and water to obtain a mixed solution, and then spraying the mixed solution on cotton balls in a mechanical pesticide application mode, wherein the spraying height is 25-50cm higher than the tops of the cotton balls;

the application amount of the mepiquat chloride topping agent is 15 g/mu, and 25-30kg of water is added to each 15g of the mepiquat chloride topping agent.

10. The use of a highly potent and stable mepiquat chloride topping for cotton topping as claimed in claim 8 wherein: the topping treatment adopts the following method: stirring and uniformly mixing the mepiquat chloride topping agent and water to obtain a mixed solution, and then spraying the mixed solution on cotton balls in an unmanned aerial vehicle pesticide application mode, wherein the flying height of an unmanned aerial vehicle is 2.5-3 m;

the application amount of the mepiquat chloride topping agent is 15 g/mu, and each 15g of the mepiquat chloride topping agent is added with 700-1200g of water.

Technical Field

The application relates to the technical field of cotton topping, in particular to a high-efficiency and stable mepiquat chloride topping agent for cotton topping, a preparation method and application thereof.

Background

Cotton is at the planting in-process, in order to avoid cotton pearl overgrowing, the indispensable needs are topped the processing to cotton pearl, and traditional artifical processing of topping is wasted time and energy, with high costs, inefficiency. With the development of science and technology, the chemical topping technology is mature continuously, and has the advantages of time and labor saving, low cost and high efficiency, and is widely applied.

The chemical topping technology is to apply a topping agent mixed with water on the top of the cotton beads by adopting a mechanical or inorganic drug application mode. The effective components of the existing topping agent are flumetralin, paclobutrazol, chlormequat chloride, mepiquat chloride and the like.

The flumetralin is one of plant growth regulators, can effectively reduce excessive growth of cotton balls, has the advantages of safety, no stimulation to the cotton balls and long time effect, but has higher cost and higher requirement on water and fertilizer. Chlormequat chloride is also one of plant growth regulators, and can block synthesis of protopectin in cotton beads and inhibit cell division, but the dosage of chlormequat chloride on the tops of the cotton beads is harsh, cotton bead topping cannot be realized when the dosage of chlormequat chloride is small, and the cotton beads are easily damaged when the dosage of chlormequat chloride is too large. Paclobutrazol can effectively control the excessive growth of cotton balls and has the advantage of long drug effect, but paclobutrazol is easy to remain in soil and can cause damage to the soil after being used for a long time.

The mepiquat chloride is also one of plant growth regulators, can inhibit the synthesis of kaurene in the cotton beads, and the kaurene is a precursor for gibberellin synthesis, namely the synthesis of kaurene which is a precursor for gibberellin synthesis in the cotton beads is inhibited to regulate and control the gibberellin level in the cotton beads, so that the elongation among cotton bead joints can be effectively inhibited, and the mepiquat chloride also has the advantage of mild temperament, has no side effect on the flowering phase when being used in the flowering phase of the cotton beads, is not easy to cause phytotoxicity and is widely applied.

The mepiquat chloride topping agent is mainly prepared by mixing mepiquat chloride serving as an effective component and water serving as a solvent. The mass concentration of the mepiquat chloride in the commercially available mepiquat chloride topping agent is up to 25%, and in order to improve the drug effect of the mepiquat chloride topping agent, if a mepiquat chloride raw drug is added into the mepiquat chloride topping agent to improve the mass concentration of the mepiquat chloride topping agent, the mepiquat chloride topping agent is easy to generate the conditions of turbidity and layering, and the storage stability of the mepiquat chloride topping agent is influenced. Therefore, there is an urgent need to develop a mepiquat chloride topping agent which is stable and efficient in storage to meet the market demand.

Disclosure of Invention

In order to improve the storage stability of the mepiquat chloride topping agent and improve the drug effect of the mepiquat chloride topping agent, the application provides the efficient and stable mepiquat chloride topping agent for cotton topping, the preparation method and the application.

In a first aspect, the application provides a high-efficiency and stable mepiquat chloride topping agent for cotton topping, which adopts the following technical scheme:

the efficient and stable mepiquat chloride topping agent for cotton topping is prepared from the following raw materials in percentage by weight: 28-32.65% of mepiquat chloride technical, 1-3% of isooctanoate, 25-35% of auxiliary agent and the balance of water;

the auxiliary agent is prepared from the following raw materials in percentage by weight: 3-5% of fatty alcohol-polyoxyethylene ether, 7-9% of tallow amine polyoxyethylene ether phosphate polycondensate, 10-15% of styryl phenol polyoxyethylene ether, 10-20% of dodecyl hydroxypropyl sulphobetaine, 25-35% of alkyl glycoside, 3-7% of calcium dodecyl benzene sulfonate, 20-25% of dodecyl trimethyl ammonium chloride and 2-4% of dioctyl sodium sulfosuccinate.

By adopting the technical scheme, the mepiquat chloride topping agent does not adopt the flumetralin, the chlormequat chloride and the paclobutrazol, but adopts single mepiquat chloride as an effective component, so that the negative effects caused by the use of the flumetralin, the chlormequat chloride and the paclobutrazol are avoided. The mepiquat chloride in the mepiquat chloride topping agent regulates and controls the level of gibberellin in a cotton bead body by inhibiting the synthesis of a precursor kaurene synthesized by the gibberellin in the cotton bead body, so that the elongation between cotton bead joints can be effectively inhibited, and the mepiquat chloride topping agent has the advantages of controlling plant types, promoting roots and strengthening seedlings, improving the chlorophyll content of leaves and being difficult to cause phytotoxicity. The cotton ball topping agent is matched with an iso-octoate accelerator, iso-octoate is an oil-soluble substance, the drug effect of catalyzing mepiquat chloride can be promoted, tender shoots at the top of the cotton ball are rapidly withered, the timeliness is accelerated, and the cotton ball topping agent not only realizes topping of the cotton ball, but also has the advantages of low cost, small side effect on the cotton ball, simplicity and convenience in use and processing by utilizing the synergistic effect between the mepiquat chloride and the iso-octoate.

Meanwhile, the applicant finds that after the oil-soluble iso-octoate is added into the raw material of the mepiquat chloride, the drug effect of the mepiquat chloride is improved, but the uniformity and the storage stability of the mepiquat chloride are affected, in the application, the auxiliary agent is added into the raw material of the mepiquat chloride, and the synergistic effect among fatty alcohol polyoxyethylene ether, tallow amine polyoxyethylene ether phosphate polycondensate, styryl phenol polyoxyethylene ether, dodecyl hydroxypropyl sulphobetaine, alkyl glycoside, calcium dodecyl benzene sulfonate, dodecyl trimethyl ammonium chloride and dioctyl sodium sulfosuccinate is utilized to improve the uniformity of the mepiquat chloride raw drug, iso-octoate and water and also improve the storage stability of the mepiquat chloride, more importantly, the mass concentration of the mepiquat chloride in the mepiquat chloride is improved on the basis of maintaining the good storage stability of the mepiquat chloride, the mass concentration of the mepiquat chloride can reach about 32%, so that the pesticide effect of the mepiquat chloride is improved, meanwhile, the auxiliary agent also improves the permeability of the mepiquat chloride on the leaf surface of the cotton bead, promotes the absorption of the leaf surface of the cotton bead, effectively improves the pesticide effect of the mepiquat chloride, and ensures that the mepiquat chloride has the advantages of low cost, convenience in processing, simplicity and convenience in use, stability in storage and high pesticide effect.

Meanwhile, the mepiquat chloride topping agent can achieve the effects of bud promotion, boll promotion, automatic topping and high yield only by spraying the foliage once, does not need to control water and fertilizer in the spraying process, does not lock the top of the cotton ball once, enables the cotton ball to continue to grow, has the growth height of less than 9.5cm, can grow more than two fruit branches, is compact in fruit branch, does not block the tower-shaped structure, and has more peaches at the middle lower part of the cotton ball, thereby achieving the effects of increasing the yield and the income.

Optionally, the auxiliary agent is prepared from the following raw materials in percentage by weight: 4% of fatty alcohol-polyoxyethylene ether, 8% of tallow amine polyoxyethylene ether phosphate polycondensate, 12% of styryl phenol polyoxyethylene ether, 15% of dodecyl hydroxypropyl sulfobetaine, 30% of alkyl glycoside, 5% of calcium dodecyl benzene sulfonate, 23% of dodecyl trimethyl ammonium chloride and 3% of dioctyl sodium sulfosuccinate.

By adopting the technical scheme, the raw material proportion of the auxiliary agent is further optimized, the using effect of the auxiliary agent is improved, and the stability of the mepiquat chloride topping agent is also improved.

Optionally, the mepiquat chloride topping agent is prepared from the following raw materials in percentage by weight: 32.65% of mepiquat chloride technical, 2% of isooctanoate, 30% of auxiliary agent and the balance of water.

By adopting the technical scheme, the raw material proportion of the mepiquat chloride topping agent is further optimized, and the stability and the drug effect of the mepiquat chloride topping agent are improved.

Optionally, the isooctoate is one or more of zinc isooctanoate, calcium isooctanoate and cobalt isooctanoate.

By adopting the technical scheme, the isooctoate is convenient to select, and is optimized, so that the practicability of the mepiquat chloride topping agent is improved.

Optionally, the mass concentration of mepiquat chloride in the mepiquat chloride bulk drug is 98%.

By adopting the technical scheme, the mass concentration of the mepiquat chloride in the mepiquat chloride raw medicine is optimized, and the preparation of the mepiquat chloride topping agent is facilitated.

Optionally, the auxiliary is prepared by the following method: fully stirring and uniformly mixing fatty alcohol-polyoxyethylene ether, a tallow amine polyoxyethylene ether phosphate polycondensate, styryl phenol polyoxyethylene ether, dodecyl hydroxypropyl sulphobetaine, alkyl glycoside, calcium dodecyl benzene sulfonate, dodecyl trimethyl ammonium chloride and dioctyl sodium sulfosuccinate to obtain the assistant.

By adopting the technical scheme, the preparation of the auxiliary agent is convenient.

In a second aspect, the present application provides a method for preparing the efficient and stable mepiquat chloride topping agent for cotton topping, which adopts the following technical scheme:

the preparation method of the efficient and stable mepiquat chloride topping agent for cotton topping comprises the following steps:

stirring and uniformly mixing the mepiquat chloride original drug and water, then adding the auxiliary agent, continuously stirring and uniformly mixing, then adding the iso-octoate, and continuously stirring and uniformly mixing to obtain the mepiquat chloride topping agent.

By adopting the technical scheme, the preparation of the mepiquat chloride topping agent is facilitated.

In a second aspect, the present application provides an application of the efficient and stable mepiquat chloride topping agent for cotton topping, which adopts the following technical scheme:

the application of the efficient and stable mepiquat chloride topping agent for cotton topping is disclosed.

By adopting the technical scheme, the mepiquat chloride topping agent is convenient to use.

Optionally, the topping treatment adopts the following method: stirring and uniformly mixing the mepiquat chloride topping agent and water to obtain a mixed solution, and then spraying the mixed solution on cotton balls in a mechanical pesticide application mode, wherein the spraying height is 25-50cm higher than the tops of the cotton balls;

the application amount of the mepiquat chloride topping agent is 15 g/mu, and 25-30kg of water is added to each 15g of the mepiquat chloride topping agent.

Through adopting above-mentioned technical scheme, add the water to mepiquat chloride topping agent, obtain mixed liquid, optimize the application amount of mepiquat chloride topping agent, mepiquat chloride topping agent water-adding volume, reduce the application amount of mepiquat chloride in the cotton-padded tyre and hang down and influence the result of use, also reduce the too high and waste that causes of application amount of mepiquat chloride in the cotton-padded tyre, still highly optimize spraying of mixed liquid simultaneously, be convenient for mechanical operation and application of medicine.

Optionally, the topping treatment adopts the following method: stirring and uniformly mixing the mepiquat chloride topping agent and water to obtain a mixed solution, and then spraying the mixed solution on cotton balls in an unmanned aerial vehicle pesticide application mode, wherein the flying height of an unmanned aerial vehicle is 2.5-3 m; the application amount of the mepiquat chloride topping agent is 15 g/mu, and each 15g of the mepiquat chloride topping agent is added with 700-1200g of water.

By adopting the technical scheme, the application amount of the mepiquat chloride topping agent and the water adding amount of the mepiquat chloride topping agent are optimized, the application effect is reduced due to the fact that the application amount of the mepiquat chloride in cotton beads is too low, waste caused by the fact that the application amount of the mepiquat chloride in the cotton beads is too high is also reduced, meanwhile, the spraying height of the mixed liquid is optimized, and the inorganic human operation and the pesticide application are facilitated.

In summary, the present application has the following beneficial effects:

1. the mepiquat chloride topping agent uses single mepiquat chloride as an effective component, is matched with the isooctanoate accelerator, is matched with the auxiliary agent, utilizes the synergistic effect among the mepiquat chloride, the isooctanoate and the auxiliary agent, and improves the mass concentration of the mepiquat chloride in the mepiquat chloride topping agent on the basis of keeping the good storage stability of the mepiquat chloride topping agent, and the mass concentration can reach about 32 percent, so that the mepiquat chloride topping agent has the advantages of low cost, convenience in processing, simplicity and convenience in use, stable storage and high drug effect.

2. The application of the efficient and stable mepiquat chloride topping agent for cotton topping disclosed by the application is characterized in that the mepiquat chloride topping agent is added with water to obtain a mixed solution, then the cotton topping treatment is carried out by adopting a mechanical pesticide application mode or an inorganic human pesticide application mode, the use of the mepiquat chloride topping agent is facilitated, the height of cotton balls is effectively controlled, roots and seedlings are promoted, the chlorophyll content of leaves is improved, and the yield of cotton ball seed cotton is improved.

3. Meanwhile, the mepiquat chloride topping agent can achieve the effects of bud promotion, boll promotion, automatic topping and high yield only by spraying the foliage once, does not need to control water and fertilizer in the spraying process, does not lock the top of the cotton ball once, enables the cotton ball to continue to grow, has the growth height of less than 9.5cm, can grow more than two fruit branches, is compact in fruit branch, does not block the tower-shaped structure, and has more peaches at the middle lower part of the cotton ball, thereby achieving the effects of increasing the yield and the income.

Detailed Description

The present application will be described in further detail with reference to examples.

Preparation example

TABLE 1 preparation examples content of each raw material (unit: g)

Raw materials	Preparation example 1	Preparation example 2	Preparation example 3
				Fatty alcohol polyoxyethylene ether	4	3	5
Polyoxyethylene tallow amine phosphate polycondensate	8	7	9
				Styrylphenol polyoxyethylene ether	12	15	10
Dodecyl hydroxypropyl sulfobetaine	15	20	10
				Alkyl glycosides	30	25	35
Calcium dodecyl benzene sulfonate	5	3	7
				Dodecyl trimethyl ammonium chloride	23	25	20
Sodium dioctyl sulfosuccinate	3	2	4
				Total up to	100	100	100

Preparation example 1

The raw material proportion of the assistant is shown in table 1.

Wherein the fatty alcohol polyoxyethylene ether is 2-ethylhexanol polyoxyethylene ether, specifically EH-158, and is selected from Haian petrochemical plants of Jiangsu province; the styryl phenol polyoxyethylene ether is tristyryl phenol polyoxyethylene ether and is selected from 600# of Haian petrochemical plant of Jiangsu province; the alkyl glycoside is APG0810 and is selected from new materials inc.

Wherein, the tallow amine polyoxyethylene ether phosphate polycondensate is prepared by the following method:

adding tallow amine polyoxyethylene ether into a reaction tank, heating to 70 ℃, and adding P₂O₅Continuously heating to 85 ℃, carrying out heat preservation treatment for 6h, then adjusting the pH value to 6.5 by using sodium hydroxide, and cooling to obtain the tallow amine polyoxyethylene ether phosphate polycondensate;

and, tallow amine polyoxyethylene ether and P₂O₅The molar ratio of the N-substituted polyoxyethylene tallow amine is 1:1, the tallow amine polyoxyethylene ether is NE-1805, and the N-substituted polyoxyethylene tallow amine is selected from Heian petrochemical plants in Jiangsu province.

A preparation method of an auxiliary agent comprises the following steps:

adding fatty alcohol-polyoxyethylene ether, tallow amine polyoxyethylene ether phosphate polycondensate, styryl phenol polyoxyethylene ether, dodecyl hydroxypropyl sulphobetaine, alkyl glycoside, calcium dodecyl benzene sulfonate, dodecyl trimethyl ammonium chloride and dioctyl sodium sulfosuccinate into a stirring tank, and fully stirring and uniformly mixing to obtain the assistant.

Preparation example 2

The auxiliary agent is different from the auxiliary agent in the preparation example 1 in the raw material ratio, the raw material of the tallow amine polyoxyethylene ether phosphate polycondensate is different, and the rest is the same as the preparation example 1.

The raw material ratio of the auxiliary agent is shown in table 1.

The tallow amine polyoxyethylene ether phosphate polycondensate is prepared by the following method:

adding tallow amine polyoxyethylene ether into a reaction tank, heating to 68 ℃, and adding P₂O₅Continuously heating to 80 ℃, carrying out heat preservation treatment for 8h, then adjusting the pH value to 6 by using sodium hydroxide, and cooling to obtain a tallow amine polyoxyethylene ether phosphate polycondensate;

and, tallow amine polyoxyethylene ether and P₂O₅In a molar ratio of 1:1The tallow amine polyoxyethylene ether is NE-1805, and is selected from Haian petrochemical plant of Jiangsu province.

Preparation example 3

The auxiliary agent is different from the auxiliary agent in the preparation example 1 in the raw material ratio, the raw material of the tallow amine polyoxyethylene ether phosphate polycondensate is different, and the rest is the same as the preparation example 1.

The raw material ratio of the auxiliary agent is shown in table 1.

Wherein, the tallow amine polyoxyethylene ether phosphate polycondensate is prepared by the following method:

adding tallow amine polyoxyethylene ether into a reaction tank, heating to 72 ℃, and adding P₂O₅Continuously heating to 90 ℃, carrying out heat preservation treatment for 4 hours, then adjusting the pH value to 7 by using sodium hydroxide, and cooling to obtain a tallow amine polyoxyethylene ether phosphate polycondensate;

and, tallow amine polyoxyethylene ether and P₂O₅The molar ratio of the N-substituted polyoxyethylene tallow amine is 1:1, the tallow amine polyoxyethylene ether is NE-1805, and the N-substituted polyoxyethylene tallow amine is selected from Heian petrochemical plants in Jiangsu province.

Examples

TABLE 2 examples content of each raw material (unit: g)

Raw materials	Example 1	Example 2	Example 3	Example 4	Example 5
						Mepighian original drug	32.65	32.65	32.65	32.65	32.65
Isocaprylic acid salt	2	2	2	1	3
						Auxiliary agent	30	25	35	30	30
Water (W)	35.35	40.35	30.35	36.35	34.35
						Total up to	100	100	100	100	100

Example 1

The efficient and stable mepiquat chloride topping agent for cotton topping comprises the raw materials in the proportion shown in table 2.

Wherein the mass concentration of the mepiquat chloride in the mepiquat chloride raw medicine is 98 percent, and the mepiquat chloride raw medicine is selected from the northriver euphoria group; the isooctanoic acid salt is zinc isooctanoate, and the auxiliary agent is prepared by the preparation example 1.

A preparation method of an efficient and stable mepiquat chloride topping agent for cotton topping comprises the following steps:

adding the mepiquat chloride technical material and water into a stirring tank, fully stirring and uniformly mixing, then adding the auxiliary agent, continuously stirring and uniformly mixing, then adding the iso-octoate, and continuously stirring and uniformly mixing to obtain the mepiquat chloride topping agent.

Examples 2 to 5

The efficient and stable mepiquat chloride topping agent for cotton topping is different from that in the embodiment 1 in the raw material ratio, the raw material ratio of the mepiquat chloride topping agent is shown in the table 2, and the rest is the same as that in the embodiment 1.

Example 6

An efficient and stable mepiquat chloride topping agent for cotton topping is different from that in example 1 in that the isooctanoate is cobalt iso-zincate, and the rest is the same as that in example 1.

Example 7

An efficient and stable mepiquat chloride topping agent for cotton topping is different from that in example 1 in that the isooctanoic acid salt is calcium isozincate, and the rest is the same as that in example 1.

Example 8

An efficient and stable mepiquat chloride topping agent for cotton topping is different from that in example 1 in that an auxiliary agent is prepared by using preparation example 2, and the rest is the same as that in example 1.

Example 9

An efficient and stable mepiquat chloride topping agent for cotton topping is different from that in example 1 in that an auxiliary agent is prepared by using preparation example 3, and the rest is the same as that in example 1.

Comparative example

Comparative example 1

An efficient and stable mepiquat chloride topping agent for cotton topping comprises a commercial cotton trypan and a mepiquat chloride raw material, wherein the mass concentration of the mepiquat chloride in the commercial cotton trypan is 25%, and the mepiquat chloride raw material is added and uniformly mixed to enable the mass concentration of the mepiquat chloride in the mepiquat chloride topping agent to be 32%.

Comparative example 2

A highly effective stable mepiquat chloride topping for cotton topping is distinguished from example 1 in that the isooctanoate is replaced with an equal amount of water, and the remainder is the same as in example 1.

Comparative example 3

An efficient and stable mepiquat chloride topping agent for cotton topping is different from that in example 1 in that the adjuvant is replaced by the same amount of water, and the rest is the same as that in example 1.

Comparative example 4

A high-efficiency stable mepiquat chloride topping agent for cotton topping is different from that in example 1 in that the dodecyl hydroxypropyl sulfobetaine is replaced by the same amount of water in the adjuvant, and the rest is the same as that in example 1.

Comparative example 5

An efficient and stable mepiquat chloride topping agent for cotton topping is different from the topping agent in example 1 in that the dodecyl trimethyl ammonium chloride is replaced by the same amount of water in the adjuvant, and the rest is the same as in example 1.

Comparative example 6

A highly effective and stable mepiquat chloride topping for cotton topping is characterized in that the same amount of water is used in the adjuvant to replace the calcium dodecylbenzene sulfonate and dioctyl sodium sulfosuccinate, and the rest is the same as in example 1.

Comparative example 7

A high-efficiency stable mepiquat chloride topping for cotton topping is different from that of example 1 in that the adjuvant is composed of dodecyl hydroxypropyl sulfobetaine, dodecyl trimethyl ammonium chloride, calcium dodecyl benzene sulfonate and dioctyl sodium sulfosuccinate, and the rest is the same as example 1.

Mepigtlat-chloride topping agent performance detection test

The mepiquat chloride topping agents obtained in examples 1 to 9 and comparative examples 1 to 7 were left to stand for 60 days at 30 ℃ under a relative humidity of 45% in a dark environment, and the following performance tests were carried out, and the test results are shown in table 3.

TABLE 3 detection results of mepiquat chloride topping agents

As can be seen from Table 3, compared with the case that the mepiquat chloride is added into the existing commercially available cotton trypan to enable the mass concentration of the mepiquat chloride to reach 32% (comparative example 1), the mepiquat chloride topping agent of the application is uniform and transparent after being placed for 60 days, does not generate the conditions of layering and turbidity, has good storage stability and meets the market demand.

Comparing example 1 with comparative example 3, it can be seen that the addition of an auxiliary agent to the raw materials of the mepiquat chloride enables the uniformity of the mepiquat chloride to be increased and the occurrence of delamination of the mepiquat chloride to be reduced.

Comparing example 1 with comparative examples 4 to 7, it can be seen that the addition of dodecylhydroxypropyl sulfobetaine, dodecyltrimethylammonium chloride, calcium dodecylbenzenesulfonate, dioctyl sodium sulfosuccinate to the raw materials of the adjuvant and the utilization of the synergistic effect therebetween can improve the uniformity and storage stability of the mepiquat chloride topping agent.

Application example

Application example 1

An application of efficient and stable mepiquat chloride topping agent for cotton topping, an application of the mepiquat chloride topping agent in cotton topping treatment.

The topping treatment adopts the following method: adding the mepiquat chloride topping agent and water into a stirring tank, fully stirring and uniformly mixing to obtain a mixed solution. Then, the mixed liquid is sprayed on the cotton balls in a mechanical pesticide application mode, the spraying height is 35cm higher than the tops of the cotton balls, and the spraying height can be set to be 25cm, 50cm and the like according to needs.

The application amount of the mepiquat chloride topping agent is 15 g/mu, and the amount of the mepiquat chloride topping agent added with water is 25kg per 15g of the mepiquat chloride topping agent, and can be set to be 27kg, 30kg and the like according to needs.

Application example 2

An application of efficient and stable mepiquat chloride topping agent for cotton topping, an application of the mepiquat chloride topping agent in cotton topping treatment.

The topping treatment adopts the following method: adding the mepiquat chloride topping agent and water into a stirring tank, fully stirring and uniformly mixing to obtain a mixed solution. Then adopt the mode that unmanned aerial vehicle gave medicine to, spray mixed liquid on the cotton pearl, and unmanned aerial vehicle flying height is 2.5m, and it also can set up as required to be 2.7m, 3m etc.

The application amount of the mepiquat chloride topping agent is 15 g/mu, and each 15g of the mepiquat chloride topping agent is mixed with 700g of water, and the amount can be set to 1000g, 1200g and the like according to needs.

Mepigtlat chloride topping agent drug effect detection test

The mepiquat chloride topping agents obtained in examples 1 to 9 and comparative examples 1 to 3 were subjected to the pesticide effect test in southern Xinjiang in 2020 by the topping treatment method of application example 2, and were used for cotton topping treatment, and the test results are shown in table 4.

The test field of southern Xinjiang is divided into 13 blocks, the number of the test field is 1-13, the test field is square, and the area of the test field is 0.5 mu. The test plots 1 to 9 were each applied with the mepiquat chloride obtained in examples 1 to 9, the test plots 10 to 12 were each applied with the mepiquat chloride obtained in comparative examples 1 to 3, and the test plot 13 was prepared by artificial cotton topping and served as a control group. And the application amount of the mepiquat chloride topping agent is 15 g/mu, and 700g of water is added to each 15g of the mepiquat chloride topping agent.

TABLE 4 detection results of the efficacy of mepiquat chloride topping agents

As can be seen from Table 4, compared with manual topping (comparative example), the height control of cotton beads of the mepiquat chloride topping agent is obviously reduced, and compared with a mepiquat chloride topping agent (comparative example 1) obtained by adding a mepiquat chloride raw drug to a commercially available cotton farmer, the height control of cotton beads is also better, and meanwhile, the yield of seed cotton is improved, is 454.86-461.91 kg/mu, and meets market requirements.

Comparing example 1 with comparative example 2, it can be seen that the addition of zinc isooctanoate to the raw material of mepiquat chloride topping significantly reduces the growth height of cotton balls and also increases the yield of seed cotton. In combination with comparative example 3, it can be seen that the addition of the adjuvant to the raw materials of the mepiquat chloride topping also significantly reduces the growth height of cotton balls and also increases the yield of seed cotton.

The difference between examples 1 and 4 to 5 was that the amount of zinc isooctanoate added in example 1 was 2%, the amount of zinc isooctanoate added in example 4 was 1%, and the amount of zinc isooctanoate added in example 5 was 3%. Therefore, the growth height of the cotton balls tends to decrease and then increase along with the increasing of the adding amount of the zinc isooctanoate, and the yield of the seed cotton tends to increase and then decrease, so that the height of the cotton balls can be well controlled within the adding amount of the zinc isooctanoate of 1-3 percent, and particularly the adding amount of the zinc isooctanoate is 2 percent.

Examples 6 to 7 were compared, except that zinc isooctanoate was added in example 6, cobalt isozincate was added in example 7, and calcium isozincate was added in example 8. Therefore, the control of the height of the cotton balls by adding the zinc isooctanoate is better than that of the cotton balls by adding the cobalt isooctanoate and the calcium isooctanoate.

Examples 1 to 3 were compared, except that the amount of the auxiliary added in example 1 was 30%, the amount of the auxiliary added in example 2 was 25%, and the amount of the auxiliary added in example 3 was 35%. Therefore, the growth height of cotton balls tends to decrease first and then increase along with the increasing of the addition amount of the auxiliary agent, and the yield of seed cotton tends to increase first and then decrease, which can also show that the auxiliary agent has influence on the height control of the cotton balls and the yield of the seed cotton, and can well control the height of the cotton balls within the range of 25-35% of the addition amount of the auxiliary agent, particularly the addition amount of the auxiliary agent is 30%.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.