CN112715571A

CN112715571A - Ternary weeding composition and application thereof

Info

Publication number: CN112715571A
Application number: CN202110012537.XA
Authority: CN
Inventors: 李冬兵; 王霞; 郑秀
Original assignee: Hefei Shangbang Plant Protection Technology Co ltd
Current assignee: Hefei Shangbang Plant Protection Technology Co ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-04-30

Abstract

The invention provides a ternary weeding composition, which comprises an active ingredient A, an active ingredient B and an active ingredient C, wherein the active ingredient A is glyphosate or glufosinate-ammonium, the active ingredient B is flumioxazin, and the active ingredient C is oxyfluorfen; the mass ratio of the active component A, the active component B and the active component C is 1-100:0.1-30: 0.1-20. The weeding composition can be used for preventing and removing non-cultivated land weeds and has obvious synergistic effect.

Description

Ternary weeding composition and application thereof

Technical Field

The invention belongs to the field of herbicides, and particularly relates to a weeding composition containing glyphosate or glufosinate-ammonium, flumioxazin and oxyfluorfen and application thereof.

Background

The glyphosate is a systemic conductive type sterilant herbicide, has good systemic and conductive performance, is mainly absorbed by green parts of weeds and quickly transmitted to each part of plants, and can kill the weeds with roots.

Glufosinate is a phosphonic acid herbicide, is a glutamine synthesis inhibitor, is a non-selective contact herbicide with partial systemic action, ammonium metabolism in plants is disturbed within a short time after application, and a cell poison ammonium ion is accumulated in plants, so that photosynthesis is seriously inhibited, and the aim of weeding is fulfilled; has better control effect on non-cultivated land weeds

Flumioxazin is a contact-type selective herbicide researched and developed by Sumitomo chemical Co., Ltd, can be absorbed by the sprouts and leaves of plants, and can effectively prevent and kill annual broadleaf weeds and annual gramineous weeds.

The oxyfluorfen is a diphenyl ether contact herbicide and plays a role in killing weeds under the condition of light; enters the plant body mainly through a coleoptile and a mesocotyl, is absorbed less by roots, and is transported upwards to leaves slightly through the roots; the pre-emergence and post-emergence application effects are best, the weeding spectrum for the germination of the seeds is wide, and the weeding composition has excellent control effects on broad-leaved weeds, sedges and barnyard grass, monochoria vaginalis, mirabilis jalapa and sedges with abnormal shapes.

After the herbicides are mixed for use, three different combined actions of synergism, addition and antagonism occur, the weeding composition with synergism can effectively reduce the using dosage of active ingredients, slow down the generation of drug resistance of weeds and reduce environmental pollution, and a plurality of domestic pesticide enterprises pay attention to the compounding of medicaments to screen out the weeding composition with excellent synergism for registration. The previous research finds that no report is provided in the prior art about the use of glyphosate or glufosinate-ammonium, flumioxazin and oxyfluorfen in a compounding way.

Disclosure of Invention

The weeding composition comprises glyphosate or glufosinate-ammonium, flumioxazin and oxyfluorfen and application thereof. The specific technical scheme is as follows:

a ternary weeding composition comprises an active ingredient A, an active ingredient B and an active ingredient C, wherein the active ingredient A is glyphosate or glufosinate-ammonium, the active ingredient B is flumioxazin, and the active ingredient C is oxyfluorfen; the mass ratio of the active component A, the active component B and the active component C is 1-100:0.1-30: 0.1-20. The preferable mass ratio of the active component A, the active component B and the active component C is 1-40:0.5-3: 0.1-2. More preferably, the mass ratio of the glyphosate to the flumioxazin to the oxyfluorfen is 7.0:1.5:0.5, and the mass ratio of the glyphosate to the flumioxazin to the oxyfluorfen is 30.5:1.5: 1.0; the mass ratio of the glyphosate to the flumioxazin to the oxyfluorfen is 22.5:1.5:1.0, and 35.0:3.0: 1.5.

The weeding composition is mixed with common auxiliary materials on pesticides to prepare any preparation suitable for agriculture, and the active ingredients of the weeding composition are 1-95% by mass. The preparation is dispersible oil suspending agent, suspending emulsion, water dispersible granule, large granule, wettable powder, suspending agent and missible oil.

The weeding composition is used for preventing and removing weeds in non-cultivated land. The weeds are annual grassy, broad-leaved and sedge weeds.

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

1. the composition of the invention has obvious synergistic effect: the synergistic effect is shown when the mass ratio of the glyphosate or the glufosinate-ammonium, the flumioxazin and the oxyfluorfen is 7.0:1.5:0.5, and 30.5:1.5: 1.0; the synergistic effect is shown when the mass ratio of the glufosinate to the flumioxazin to the oxyfluorfen is 22.5:1.5:1.0, and the mass ratio of the glufosinate to the flumioxazin to the oxyfluorfen is 35.0:3.0: 1.5.

2. The composition of the invention can effectively reduce the dosage of active ingredients, slow down the generation of drug resistance of weeds and reduce environmental pollution.

Detailed Description

Example 1: indoor bioassay of barnyard grass by using compound medicament

Testing weeds: barnyard grass.

The test method comprises the following steps: a greenhouse potting method is adopted. The test soil is special soil for the test, and no medicament is applied to the collected soil plots. Filling soil special for the test into a flowerpot; the flowerpot is placed in a basin for containing water, and soil is kept moist by adopting an infiltrating irrigation mode at the bottom of the basin. Sowing 35 barnyard grass seeds in a flowerpot, covering soil of 0.5cm after sowing, and carrying out seedling and plant setting in a 2-leaf period, wherein 20 barnyard grass with consistent growth potential are reserved in each pot, and treating when the barnyard grass grows to a 3-leaf period. Preparing series of single agents with different concentrations and different mixture ratios, and spraying stem and leaf with a potter spraying device, wherein the treatment is repeated for 4 times. After treatment, the barnyard grass is placed in a greenhouse for normal management, the growth condition of the barnyard grass is regularly observed, the fresh weight of the overground part of the barnyard grass is weighed after 21 days, and the fresh weight inhibition rate is calculated. The combined effect of the herbicidal compositions was evaluated using the Gowing method.

And (3) testing results:

TABLE 1 results of indoor bioassay of cockspur grass with glyphosate-containing compounded agent

As can be seen from Table 1, the glyphosate, flumioxazin and oxyfluorfen compound composition shows different combined effects on barnyard grass. The glyphosate or glufosinate-ammonium, flumioxazin and oxyfluorfen are synergistic when the mass ratio of the glyphosate or glufosinate-ammonium, the flumioxazin and the oxyfluorfen is 7.0:1.5:0.5 and 30.5:1.5:1.0, and the rest ratios are additive.

TABLE 2 indoor assay results for barnyard grass with glufosinate-containing compounded agent

As can be seen from Table 2, the combination of glufosinate-ammonium, flumioxazin and oxyfluorfen showed different combined effects on the monochoria vaginalis. When the mass ratio of the glufosinate-ammonium to the flumioxazin to the oxyfluorfen is 22.5:1.5:1.0 and 35.0:3.0:1.5, the synergistic effect is shown, and the other ratio is shown as additive effect.

Example 3

33% glyphosate-flumioxazin-oxyfluorfen dispersible oil suspending agent

30.5% of glyphosate, 1.5% of flumioxazin, 1% of oxyfluorfen, 5004% of agricultural milk, 1601# 5% of agricultural milk, 3% of anhydrous block T, 4% of NNO, 3% of organic bentonite and the balance of methyl oleate, wherein the total content is 100%.

Dispersible oil suspension agent containing 18% of glyphosate, flumioxazin and oxyfluorfen

Glyphosate 14%, flumioxazin 3%, oxyfluorfen 1%, agricultural emulsion 5003%, agricultural emulsion 1601# 7%, anhydrous fast T5%, NNO 2%, organobentonite 2%, and methyl oleate, wherein the total amount is 100%.

25% glufosinate-flumioxazin-oxyfluorfen dispersible oil suspending agent

Glufosinate-ammonium 22.5%, flumioxazin 1.5%, oxyfluorfen 1%, Nongru 5005%, Nongru 1601# 7%, Anhydrous Kuaiji T4%, NNO 5%, organic bentonite 3%, and soybean oil to make up 100%.

39.5% glufosinate-flumioxazin-oxyfluorfen dispersible oil suspending agent

35% of glufosinate-ammonium, 3% of flumioxazin, 1.5% of oxyfluorfen, 5008% of agricultural milk, 1601# 6% of agricultural milk, 5% of anhydrous block T, 4% of NNO, 2% of organic bentonite and 100% of soybean oil supplement.

Example 4 efficacy of the combination formulation on weeds between non-cultivated lands

Weeds: barnyard grass, moleplant seed, monochoria vaginalis and cyperus rotundus.

The application method comprises the following steps: setting 2 medicament treatments, 1 blank control and repeating for 3 times; the area per cell was 25m2, randomly arranged. Spraying stem and leaf with sprayer. And (5) investigating the weed fresh weight control effect 14d after the application.

And (4) analyzing results: the glyphosate or glufosinate-ammonium, flumioxazin and oxyfluorfen compound composition has good control effect on weeds in non-cultivated land.

TABLE 3 herbicidal Effect of the compounded preparations on uncultivated land

The foregoing is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that modifications may be made without departing from the invention as claimed in the invention and these modifications are within the scope of the invention.

Claims

1. A ternary weeding composition is characterized by comprising an active ingredient A, an active ingredient B and an active ingredient C, wherein the active ingredient A is glyphosate or glufosinate-ammonium, the active ingredient B is flumioxazin, and the active ingredient C is oxyfluorfen; the mass ratio of the active component A, the active component B and the active component C is 1-100:0.1-30: 0.1-20.

2. The herbicidal composition according to claim 1, wherein the mass ratio of the active ingredient a, the active ingredient B and the active ingredient C is 1-40:0.5-3: 0.1-2.

3. The weeding composition according to claim 1, wherein the mass ratio of the glyphosate to the flumioxazin to the oxyfluorfen is 7.0:1.5:0.5, 30.5:1.5: 1.0; the mass ratio of the glyphosate to the flumioxazin to the oxyfluorfen is 22.5:1.5:1.0, and 35.0:3.0: 1.5.

4. A herbicidal composition according to any one of claims 1 to 3, characterized in that the active ingredient is present in an amount of 1 to 95% by weight.

5. The weeding composition according to claim 4, wherein the weeding composition is mixed with the common auxiliary materials on the pesticides to prepare any preparation suitable for agriculture.

6. A herbicidal composition according to claim 5, wherein said formulation is a dispersible oil suspension, suspoemulsion, water dispersible granule, macrogranule, wettable powder, suspension, emulsifiable concentrate.

7. Use of the herbicidal composition according to any one of claims 1 to 6 for controlling non-cultivated weeds.

8. Use of a herbicidal composition according to claim 7, characterized in that the weeds are grasses, broadleaves and sedge weeds.