阅读说明：本技术 一种含有唑嘧磺草胺的除草组合物 (Weeding composition containing flumetsulam ) 是由 席亚男 张俊 于 2021-07-30 设计创作，主要内容包括：本发明公开了一种含有唑嘧磺草胺的除草组合物,主要以唑嘧磺草胺、噻吩磺隆与乙草胺为主要有效成分其中唑嘧磺草胺的质量百分比为10～60％,噻吩磺隆的质量百分比为10～50％,乙草胺的质量百分比为10％～50％,其余为分散剂、成盐剂、崩解剂、润湿剂、填料和水。本发明提供的一种含有唑嘧磺草胺的除草组合物,经过一定比例复配后具有明显的增效作用,对于大豆、玉米、小麦、大麦和燕麦等作物中的阔叶杂草问荆(节骨草)、荠菜、小花糖芥、播娘蒿(麦蒿)、蓼、苍耳(老场子)、龙葵(野葡萄)、反枝苋(苋菜)、藜(灰菜)、猪殃殃(涩拉秧)、曼陀罗等均有较好的防效。(The invention discloses a weeding composition containing flumetsulam, which mainly takes flumetsulam, thifensulfuron methyl and acetochlor as main effective components, wherein the mass percent of the flumetsulam is 10-60%, the mass percent of the thifensulfuron methyl is 10-50%, the mass percent of the acetochlor is 10-50%, and the balance of dispersing agent, salt forming agent, disintegrating agent, wetting agent, filler and water. The weeding composition containing flumetsulam has an obvious synergistic effect after being compounded according to a certain proportion, and has a good prevention effect on broad-leaved weeds such as field horsetail (herba abri), shepherd's purse, small flower sugar mustard, descurainia (artemisia sieboldii), polygonum, cocklebur (field fruit), black nightshade (wild grape), amaranthus retroflexus (amaranthus), chenopodium album (chenopodium album), cleavers (taraxacum) and stramonium.)

1. A weeding composition containing flumetsulam is characterized in that: the weeding composition takes flumetsulam, thifensulfuron methyl and acetochlor as main effective components, wherein the mass percent of the flumetsulam is 10-60%, the mass percent of the thifensulfuron methyl is 10-50%, and the mass percent of the acetochlor is 10-50%.

2. The flumetsulam-containing herbicidal composition as claimed in claim 1, characterized in that the herbicidal composition is in the form of water dispersible granules, which comprises a dispersant, a salt former, a disintegrant, a wetting agent, a filler and water in addition to the main component.

3. The flumetsulam-containing weeding composition according to claim 2, characterized in that the dispersant is one or two of sodium alkylnaphthalenesulfonate and nekal; the salt forming agent is one or two of sodium methoxide and sodium ethoxide; the disintegrating agent is one or two of potassium carbonate and sodium carbonate; the wetting agent is one or two of sodium dodecyl benzene sulfonate and saponin; the filler is one or two of potassium chloride and urea.

4. A herbicidal composition containing flumetsulam according to claim 3, characterized in that the percentage of the dispersant is 2-10%; the percentage of the salt forming agent is 1-5%; the percentage of the disintegrating agent is 0.5-5%; the percentage of the wetting agent is 0.5-5%; the percentage of the filler is 5-60%; the percentage of water is 0.5-2%.

5. The flumetsulam-containing weeding composition as claimed in claim 1, is characterized in that the raw materials and auxiliary materials are prepared according to an extrusion granulation method to prepare water dispersible granules, and the water dispersible granules are tested to have the moisture content of less than or equal to 2.0%, the suspension rate of 99%, the disintegration time of less than or equal to 1min, the dispersibility of 99%, and the water solubility of 190g/L, so that the heat storage stability is accelerated to be qualified, and the quality technical indexes of the water dispersible granules are met.

6. The flumetsulam-containing herbicidal composition according to claim 1, characterized in that the herbicidal composition is suitable for weeding after sowing of plants or during seedling growth.

7. The flumetsulam-containing herbicidal composition according to claim 1, characterized in that it is used for the removal of weeds in soybean, corn, wheat, barley and oat crops.

Technical Field

The invention relates to the field of pesticide preparation, in particular to a weeding composition containing flumetsulam.

Background

Flumetsulam is a typical acetolactate synthase inhibitor, has strong systemic conductivity, and is a slow process from the time when a plant absorbs a medicament to the time when the plant suffers from a victim symptom until the plant dies. By inhibiting the synthesis of branched chain amino acids, protein synthesis is hindered, and the plant stops growing and eventually dies. Long residual effect period, broad weed-killing spectrum, and can be used for treating soil, stem and leaf. Thifensulfuron methyl is a systemic conduction type post-emergence herbicide with high efficiency, broad spectrum and selectivity. After post-emergence treatment, sensitive plants stopped growing almost immediately and died within 7-21 days. The surfactant is added to improve the activity of the thifensulfuron methyl on broadleaf weeds. Under the effective dose, crops such as soybean, corn, wheat, barley and oat have tolerance to the agent. Acetochlor belongs to amide selective preemergence herbicides, has the advantages of high herbicidal activity, wide application range, safety to crops, mild application conditions, stable product quality, low price and the like, and is widely used for preemergence control of dry field weeds. It is absorbed by coleoptile of monocotyledon or hypocotyl of dicotyledon, and then conducted upwards, and mainly inhibits the growth of cells by hindering protein synthesis, so that the growth of weed buds and roots is stopped, and the weed dies.

At present, no enterprise can prepare the flumetsulam, thifensulfuron methyl and acetochlor combined herbicide at home, and a production technology which can be directly applied cannot be found from the prior art data published at home. Therefore, through years of research and experiments, the applicant develops a weeding composition containing flumetsulam, aims to research a synergistic formula for compounding flumetsulam and other herbicides, and expands the weeding spectrum and the application range of weeding active ingredients of the flumetsulam combined herbicide.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a weeding composition containing flumetsulam.

A weeding composition containing flumetsulam is characterized in that: the weeding composition takes flumetsulam, thifensulfuron methyl and acetochlor as main effective components, wherein the mass percent of the flumetsulam is 10-60%, the mass percent of the thifensulfuron methyl is 10-50%, and the mass percent of the acetochlor is 10-50%.

Furthermore, the preparation is water dispersible granules, and comprises a dispersing agent, a salt forming agent, a disintegrating agent, a wetting agent, a filler and water besides the main component.

Further, the dispersant is one or two of alkyl sodium naphthalene sulfonate and nekal powder; the salt forming agent is one or two of sodium methoxide and sodium ethoxide; the disintegrating agent is one or two of potassium carbonate and sodium carbonate; the wetting agent is one or two of sodium dodecyl benzene sulfonate and saponin; the filler is one or two of potassium chloride and urea.

Further, the percentage of the dispersing agent is 2-10%; the percentage of the salt forming agent is 1-5%; the percentage of the disintegrating agent is 0.5-5%; the percentage of the wetting agent is 0.5-5%; the percentage of the filler is 5-60%; the percentage of water is 0.5-2%.

Furthermore, the raw materials and the auxiliary materials are prepared according to an extrusion granulation method to prepare the water dispersible granule, the water content is less than or equal to 2.0 percent, the suspension rate is 99 percent, the disintegration time is less than or equal to 1min, the dispersibility is 99 percent, the water solubility is 190g/L, the heat storage stability is qualified, and the quality technical index of the water dispersible granule is met.

Further, the weeding composition is suitable for weeding after sowing plants or weeding during seedling growth.

Furthermore, the weeding composition is used for removing weeds in crops such as soybean, corn, wheat, barley, oat and the like.

Compared with the prior art, the invention has the beneficial effects that:

(1) the weeding composition with synergistic effect, large weeding spectrum and high weeding activity of flumetsulam, thifensulfuron methyl and acetochlor can kill weeds in different ways, generates higher synergistic effect and can greatly improve the weeding activity of the herbicide;

(2) experiments on reducing the dosage, improving the control effect and improving the safety prove that the three components have obvious synergistic effect, can expand the weed control spectrum, reduce the dosage per mu and improve the control effect, and are safe to crops;

(3) the herbicide composition has long lasting period and delays weed resistance, and is applied once through the combination of three herbicides, so that the weeding period is longer, and the weed resistance is delayed.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

20% of flumetsulam, 10% of thifensulfuron methyl, 10% of acetochlor, 5% of sodium alkyl naphthalene sulfonate, 2% of sodium methoxide, 2% of sodium dodecyl benzene sulfonate, 3% of potassium carbonate, 1% of water and 47% of urea, and the raw materials and auxiliary materials are prepared into the water dispersible granule according to an extrusion granulation method.

Example 2:

20% of flumetsulam, 15% of thifensulfuron methyl, 10% of acetochlor, 5% of sodium alkyl naphthalene sulfonate, 2% of sodium methoxide, 2% of sodium dodecyl benzene sulfonate, 3% of potassium carbonate, 1% of water and 42% of urea, and the raw materials and auxiliary materials are prepared into the water dispersible granule according to an extrusion granulation method.

Example 3:

20% of flumetsulam, 10% of thifensulfuron methyl, 15% of acetochlor, 4% of sodium alkyl naphthalene sulfonate, 2% of sodium methoxide, 2% of sodium dodecyl benzene sulfonate, 3% of potassium carbonate, 1% of water and 43% of urea, and the raw materials and auxiliary materials are prepared into the water dispersible granule according to an extrusion granulation method.

Example 4

The flumetsulam is 15 percent, the thifensulfuron methyl is 15 percent, the acetochlor is 10 percent, the sodium alkyl naphthalene sulfonate is 5 percent, the sodium methoxide is 2 percent, the sodium dodecyl benzene sulfonate is 2 percent, the potassium carbonate is 3 percent, the water is 1 percent, and the urea is 47 percent, and the water dispersible granules are prepared by the raw materials and auxiliary materials according to an extrusion granulation method.

And (3) field test:

the experimental agent is prepared according to the examples 1 to 4, the contrast agent is 80% flumetsulam water dispersible granules (purchased in the market, the united states of china, the welfare and agriculture company), the control object and weeds in a wheat field are controlled, the average air temperature is 20 to 25 ℃ when the experimental agent is used, and the control rate data of the experimental agent on the weeds in the weather mainly from sunny to cloudy are as follows:

treatment agent	The dosage of effective component (g/mu)	Total control effect (%)
			80% flumetsulam water dispersible granule	12	80
Example 1	12	90
			Example 2	12	94
Example 3	12	92
			Example 4	12	93

The results of field experiments show that the mixed herbicide effect of flumetsulam, thifensulfuron methyl and acetochlor is higher than that of single flumetsulam. The flumetsulam-containing weeding composition provided by the invention has a good weeding effect.