CN113287616A

CN113287616A - Weeding composition containing atrazine, mesotrione and bialaphos and application thereof

Info

Publication number: CN113287616A
Application number: CN202110683650.0A
Authority: CN
Inventors: 马永林; 王彦辉; 郭成林; 覃建林; 魏吉利; 高圆圆; 冯斌
Original assignee: Guangxi Zhuang Nationality Autonomous Region Academy of Agricultural Sciences
Current assignee: Guangxi Zhuang Nationality Autonomous Region Academy of Agricultural Sciences
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-08-24
Anticipated expiration: 2041-06-21
Also published as: CN113287616B

Abstract

The invention provides a weeding composition containing atrazine, mesotrione and bialaphos, wherein the active ingredients comprise atrazine, mesotrione and bialaphos, and the mass ratio of atrazine, mesotrione to bialaphos is 1-10:1-5: 0.1-5. The weeding composition has a remarkable synergistic effect, and can be used for preventing and controlling weeds in an unmanned aerial vehicle sugarcane field.

Description

Weeding composition containing atrazine, mesotrione and bialaphos and application thereof

Technical Field

The invention belongs to the field of pesticide herbicides, and particularly relates to a weeding composition containing atrazine, mesotrione and bialaphos and application thereof.

Background

The atrazine triazine compound is a systemic selective pre-emergence soil treating agent, can also be sprayed on post-emergence stems and leaves, is mainly absorbed by roots of plants and conducted upwards to inhibit photosynthesis of the plants, so that the plants die, have a wide herbicide controlling spectrum, and can prevent and kill various annual gramineous and broadleaf weeds.

Mesotrione is a pre-emergence and post-emergence broad-spectrum herbicide capable of inhibiting hydroxyphenylpyruvate dioxygenase, has contact killing effect and persistence, and can effectively prevent and treat main broad-leaved weeds and some gramineous weeds.

Bialaphos is a tripeptide natural product separated and purified from streptomyces fermentation liquor. The herbicide is a non-selective herbicide, has faster action than glyphosate and slower action than paraquat, is effective on perennial plants, has low toxicity to mammals, has short half-life period in soil, is easy to metabolize and biodegrade, and is safe to use.

Sugarcane is an important sugar crop in China, and weeds in sugarcane fields have important influence on the yield of the sugarcane. At present, sugarcane weeding apparatuses in China mainly use a knapsack sprayer, so that the operation efficiency is low, pesticide waste is serious, and the health and safety of operators are endangered. The plant protection unmanned aerial vehicle has been used for preventing and removing weeds in sugarcane fields, wheat fields, soybean fields and paddy fields in recent years, has the characteristics of time saving, labor saving, money saving and good spraying effect, can effectively control the growth of weeds, has good preventing and removing effect and is safe to crops.

The herbicide is low in weeding effect after being singly used for a long time, the drug resistance of weeds is easy to generate, the drug resistance of the weeds can be delayed by mixing different herbicide pesticides, the control effect is improved while the using amount of active ingredients is reduced, the control spectrum is expanded, and the pollution to the environment is reduced. Related reports of mixed use of atrazine, mesotrione and bialaphos are not seen in the prior art.

Disclosure of Invention

The invention relates to a weeding composition containing atrazine, mesotrione and bialaphos and application thereof. The specific technical scheme is as follows:

the atrazine-containing weeding composition is characterized in that active ingredients comprise atrazine, mesotrione and bialaphos, and the mass ratio of atrazine, mesotrione and bialaphos is 1-10:1-5: 0.1-5. The preferable mass ratio of atrazine, mesotrione and bialaphos is 5:2-4: 1-5.

The mass percentage of the active ingredients in the weeding composition is 10-70%. Preferably, the mass percentage of the active ingredients is 20-65%.

The weeding composition can be mixed with common auxiliary materials on pesticides to prepare any preparation suitable for agriculture. The preferable preparation formulation is suspending agent, aqueous emulsion, microemulsion, missible oil, water dispersible granule and wettable powder.

The invention further provides application of the weeding composition in preventing and controlling weeds in an unmanned aerial vehicle sugarcane field.

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

the atrazine, the mesotrione and the bialaphos are mixed and used in a certain proportion range to show a synergistic effect. The weeding composition can obviously improve the control effect while effectively reducing the application dosage of active ingredients, is safe to the growth of sugarcane under the application dosage, does not show obvious phytotoxicity, and is suitable for preventing and killing weeds in sugarcane fields by unmanned aerial vehicles.

Detailed Description

The invention will be better understood from the following examples. However, those skilled in the art will readily appreciate that the description of the embodiments is only for illustrating the present invention and should not be taken as limiting the invention as detailed in the claims.

Example 1: indoor toxicity determination of butachlor, clomazone and bensulfuron methyl compounded for large crabgrass and eleusine indica

The tested weeds: large crabgrass herb and goosegrass herb.

Reagent to be tested: atrazine technical, mesotrione technical and bialaphos technical; is commercially available.

The test method comprises the following steps: an indoor pot experiment method is adopted. The test soil is special test soil collected from land plots without medicines, the soil is filled to 3/4 height by a pot, a plurality of holes with the diameter of 0.3-0.5 cm are drilled at the bottom, the pot is placed into a plastic pot filled with a shallow water layer, after the soil is completely wet, weed seeds soaked for germination are respectively and uniformly scattered into the pot (20 seeds in each pot), sand-mixed fine soil with the thickness of 0.5-1.0 cm is covered, and water is periodically supplemented to keep the soil wet. And (5) fixing seedlings when seedlings of the weeds are regularly emerged.

Treatment and investigation methods: when weeds grow to 2-3 leaves, single-dose and mixed preparations are used for carrying out stem leaf spraying treatment respectively according to the experimental design dosage, the experiment is repeated for 4 times, and clear water is additionally used for comparison. The conditions of the treated weeds were regularly observed and recorded, the fresh weight of the aerial parts of each treated weed was investigated 21 days after the application, the percentage of fresh weight inhibition was calculated, and the combined action of the herbicides was evaluated by the Gowing method.

TABLE 1 measurement of the Combined action of atrazine, mesotrione and bialaphos on large crabgrass

And (4) analyzing results: as can be seen from Table 1, the atrazine, mesotrione and bialaphos exhibit synergistic and additive effects on large crabgrass after being compounded. Wherein, when the proportion of atrazine, mesotrione and bialaphos is 5:4:1 and 5:2:5, the atrazine, the mesotrione and the bialaphos have synergistic effect on the large crabgrass.

TABLE 2 measurement of the Combined action of atrazine, mesotrione and bialaphos on goosegrass

And (4) analyzing results: as can be seen from Table 2, the atrazine, mesotrione and bialaphos all show synergistic effects on goosegrass within the mixture ratio range of 5:4:1 and 5:4: 5; and the bialaphos can obviously improve the control effect of atrazine and mesotrione.

Example 2 formulation example

Preparation 1: 20% atrazine mesotrione bialaphos suspension

10% of atrazine, 8% of mesotrione, 2% of bialaphos, 8% of alkyl naphthalene sulfonate formaldehyde polycondensate, 6% of sodium dodecyl sulfate, 4% of xanthan gum, 3% of ethylene glycol, 2% of bentonite, 3% of organic silicon and the balance of water to 100%.

Preparation 2: 36% atrazine mesotrione bialaphos suspension

15% of atrazine, 6% of mesotrione, 15% of bialaphos, 5% of sodium lignosulfonate, 7% of dioctyl sodium sulfosuccinate, 3% of magnesium aluminum silicate, 4% of ethylene glycol, 4% of white carbon black, 3% of organosilicon and the balance of water to 100%.

Preparation 3: 28% atrazine mesotrione bialaphos suspension

10% of atrazine, 8% of mesotrione, 10% of bialaphos, 3% of sodium lignosulfonate, 6% of sodium dodecyl sulfate, 3% of xanthan gum, 2% of glycerol, 3% of bentonite, 3% of organic silicon and the balance of water to 100%

Example 3 field control Effect test

Test area: the base of the sugarcane field in the Subson county of the Fuseiul in Chongxi province, and the variety of the sugarcane is New Tatai No. 22. The field weeds comprise large crabgrass herb, eleusine indica, creeping oxalis, schizophyllum chinense, yellow grass and cylindracea.

The test method comprises the following steps: setting 3 medicament treatments, 1 blank control and repeating for 4 times; area of 50m per cell²And are randomly arranged. Spraying treatment is carried out on weeds at the 2-3 leaf stage. The fresh weight control effect of the weeds was investigated at 14d after the application, and the phytotoxicity of each treatment to sugarcane was visually observed at 7d and 14d after the application.

TABLE 3 field control of sugarcane field weeds with agents

TABLE 4 safety investigation of sugarcane by agent

And (5) carrying out safety investigation. The test is carried out 1-2 weeks after the application, and the safety of the sugarcane and the influence of non-target organisms are recorded by visual inspection, and the safety inspection records phytotoxicity symptoms (growth inhibition, green loss, deformity, withered spots and the like), grades and recovery conditions. Grading the phytotoxicity standard:

level 1: the sugarcane grows normally and has no any damage symptom;

and 2, stage: the sugarcane has slight phytotoxicity, and the phytotoxicity rate is less than 10 percent;

and 3, level: the sugarcane can be recovered later without influencing the yield due to medium phytotoxicity;

4, level: the sugarcane has serious phytotoxicity and is difficult to recover, so that the yield is reduced;

and 5, stage: the sugarcane has serious phytotoxicity and can not be recovered, thereby causing obvious yield reduction or no yield.

As can be seen from Table 3, the herbicidal composition of the invention can obviously improve the control effect while effectively reducing the application dosage of active ingredients, and the control effect on the sugarcane field weeds including digitaria sanguinalis, eleusine indica, creeping oxalis, petunia, salsa, and orchis virens is more than 90% when the dosage of the preparation 1-3 is 12 ga.i./mu. As can be seen from table 4, the herbicidal compositions of the present invention were safe for sugarcane growth at the application doses, and no significant phytotoxicity was found.

The preparation can be suitable for preventing and removing weeds in the sugarcane field of the unmanned aerial vehicle.

The above description is only a preferred embodiment of the present invention, and it is obvious to those skilled in the art that modifications may be made without departing from the scope of the present invention, and such modifications are also within the scope of the present invention.

Claims

1. The weeding composition containing atrazine, mesotrione and bialaphos is characterized in that active ingredients comprise atrazine, mesotrione and bialaphos, and the mass ratio of atrazine, mesotrione and bialaphos is 1-10:1-5: 0.1-5.

2. The weeding composition according to claim 1, wherein the mass ratio of atrazine, mesotrione and bialaphos is 5:2-4: 1-5; preferably 5:4:1, 5:2: 5.

3. A herbicidal composition according to claim 1 or 2, characterized in that the percentage of active ingredient is 10-70%.

4. A herbicidal composition according to claim 3, characterized in that the percentage of active ingredient is 20-65%.

5. The herbicidal composition as claimed in claim 1, wherein the dosage form of said herbicidal composition is selected from the group consisting of suspending agents, dispersible oil suspending agents, aqueous emulsions, microemulsions, emulsifiable concentrates, water dispersible granules and wettable powders.

6. Use of the herbicidal composition according to any one of claims 1 to 5 for controlling weeds in sugarcane fields.

7. Use according to claim 6, characterized in that unmanned aerial vehicle spray treatment is employed.

8. The use according to claim 6, wherein the weeds are large crabgrass, goosegrass herb, creeping oxalis, morning glory, yellow grass, and orchard grass.