CN111466388A - Compound herbicide for green Chinese onion fields - Google Patents

Compound herbicide for green Chinese onion fields Download PDF

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Publication number
CN111466388A
CN111466388A CN202010385002.2A CN202010385002A CN111466388A CN 111466388 A CN111466388 A CN 111466388A CN 202010385002 A CN202010385002 A CN 202010385002A CN 111466388 A CN111466388 A CN 111466388A
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component
green chinese
chinese onion
herbicide
weeds
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梅凤月
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Qiaochang Modern Agriculture Co ltd
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Qiaochang Modern Agriculture Co ltd
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
    • A01N37/26—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof containing the group; Thio analogues thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/82—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with three ring hetero atoms

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention belongs to the technical field of herbicide agriculture, and particularly relates to a method for preventing and controlling weeds in a green Chinese onion field, which adopts the following technical scheme: after the green Chinese onion seedlings grow to be more than 8cm, carrying out stem leaf spraying treatment by adopting a green Chinese onion field compound herbicide, wherein the green Chinese onion field herbicide comprises two or three of a component A, a component B and a component C which are used in combination. Wherein the component A comprises quizalofop-p-ethyl, clethodim, haloxyfop-R-methyl and fluazifop-p-butyl. The component B comprises acetochlor, pretilachlor and metolachlor. Component C comprises oxadiazon. The invention has the beneficial technical effects that: the compound herbicide for the green Chinese onion fields has good drug effect on refractory weeds such as gramineous weeds and broadleaf weeds which are commonly existing in the green Chinese onion fields, is safe for green Chinese onion seedlings, has no influence on growth, expands the weed control spectrum, reduces the dosage of effective components, and reduces the environmental pollution.

Description

Compound herbicide for green Chinese onion fields
Technical Field
The invention belongs to the technical field of pesticides, and particularly relates to a green Chinese onion field compound herbicide containing A, B, C components.
Background
The planting area of Chinese green onions is about 9 ten thousand mu, but the post-emergence herbicide for the green onion fields is lacked at present.
Quizalofop-p-ethyl, haloxyfop-R-methyl and fluazifop-p-butyl in the component A belong to aryloxy phenoxy propionate herbicides, and can be quickly absorbed by leaves of gramineous weeds after stem and leaf treatment, and the gramineous weeds are conducted to the whole plant and accumulated in plant meristem to inhibit acetyl coenzyme A carboxylase in the plant body, so that fatty acid synthesis is blocked to kill the weeds.
Clethodim is a cyclohexenone herbicide product developed in 1987 by Chevron chemical company, USA. The clethodim is a stem leaf herbicide, is an efficient, safe and high-selectivity ACCase inhibitor, has special effect on most annual and perennial gramineous weeds, and is safe to dicotyledonous crops.
Acetochlor, pretilachlor, metolachlor, propisochlor, napropamide and alachlor belong to amide herbicides, and are mainly used for soil treatment agents, wherein the monocotyledon mainly absorbs a part as a bud, and the dicotyledon mainly absorbs the part through a root and then the bud. The main mechanism of action of amide herbicides is to inhibit fat synthesis and thus to inhibit the growth of sprouts and roots.
Oxadiazon is used for preventing and killing various annual monocotyledon and dicotyledon weeds and is a contact-killing preemergence and postemergence herbicide. Mainly acts through the absorption of the young buds and the stems and leaves of the weeds, and can play a good role in killing weeds under the condition of light. Is particularly sensitive to weeds in the sprouting period, when the weeds sprout, the growth of coleoptiles is inhibited, tissues thereof are rapidly rotted, and the weeds die.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
In order to verify that the three effective components of haloxyfop-methyl, acetochlor and oxadiazon are compounded to have good synergistic effect, the applicant firstly performs experiments under the condition of a pot plant at room temperature, measures the weeding effect of the three effective components after mixing in different proportions and evaluates the combined effect. In the experiment, grass weeds such as brome and broadleaf weeds such as descurainia sophia are selected as target weeds.
Highly effective haloxyfop solution: 11.13g of 97 percent high-efficiency haloxyfop original medicine, 10g of emulsifier and the balance of dimethylbenzene are accurately weighed and evenly stirred to obtain 10.8 percent high-efficiency haloxyfop emulsifiable solution which is diluted to a certain concentration for later use.
Acetochlor solution: 51.02g of 98% of acetochlor original drug is accurately weighed, 10g of emulsifier is added, the rest is supplemented with dimethylbenzene, and the mixture is stirred uniformly to obtain 50% of acetochlor emulsifiable solution which is diluted into a certain concentration for later use.
Oxadiazon solution: accurately weighing 21.05g of 95% oxadiazon original drug, 10g of emulsifier and the balance of xylene, stirring the mixture evenly to obtain 20% oxadiazon emulsifiable solution, and diluting the oxadiazon emulsifiable solution to a certain concentration for later use.
Blank control solution: 10g of emulsifier and 100g of xylene.
The test method is as follows: the activity of the mixed pesticide on sparrow wheat and descurainia sophia is tested by a Colby method, quantitative soil is filled in a plastic pot with the height of 7cm and the diameter of 10cm, 20 seeds of the tested weed are uniformly sown in the plastic pot, fine sandy soil with the thickness of 0.5-1cm is covered, the plastic pot is placed at room temperature (about 7 ℃) for sunlight culture, the prepared raw pesticide solution is compounded and diluted into pesticide liquid with a certain concentration gradient, the spraying treatment of stems and leaves is carried out when the weed grows to the 3-5 leaf stage, 1ml of pesticide liquid is sprayed in each pot, each treatment is repeated for 4 times, and a blank solution is used as a control. After the treatment, the test material is placed in room temperature for culture, the growth condition of weeds is observed regularly, the damage symptom and the growth inhibition condition of target weeds are observed visually after 30 days, the fresh weight of the plant is weighed, and the fresh weight inhibition rate (%) is calculated.
The action evaluation method is used for evaluating the combined action mode of the herbicides according to a Colby method, and the formula is as follows:
e-fresh weight of weeds × 100 in treated area/fresh weight of weeds … … … … … … … … … … in control area (1)
The Colby method calculation formula:
E0＝X*Y*Z/10000
x is the survival rate of the weed of the herbicide A when the dosage is P;
y-the survival rate of the weeds when the herbicide B is used at the dosage of Q;
z-the survival rate of weeds when the dosage is W;
e0-theoretical weed survival rate of herbicide (A + B + C) at the dosage of (P + Q + W);
when the E-E0 is between-10 and 10, the addition effect is obtained, when the E-E0< -10, the synergy effect is obtained, and when the E-E0>10, the antagonism effect is obtained.
Figure BDA0002483491130000031
Figure BDA0002483491130000041
Figure BDA0002483491130000051
As can be seen from the table above, the three active ingredients are compounded, and E-E0 is less than-10, so that the compound pesticide has good synergistic effect on the control effects of brome and descurainia sophia.
The above results show that the combination of haloxyfop-methyl, acetochlor and oxadiazon has a good synergistic effect compared with the single agent, and has a good control effect on the common gramineous and broadleaf weeds in the green Chinese onion fields.
The present invention will be described in further detail below with reference to specific examples, but the present invention is by no means limited to these examples. The percentages in the formula are weight percentages, and the used raw medicines and the auxiliary agents are purchased by other manufacturers. Examples of formulations are as follows:
Figure BDA0002483491130000061
example 1
A green Chinese onion field compound herbicide comprises the following active ingredients in parts by weight: 3 parts of haloxyfop-R-methyl, wherein the herbicide is missible oil, and also comprises 10 parts of emulsifier and dimethylbenzene for supplement.
Example 2
A green Chinese onion field compound herbicide comprises the following active ingredients in parts by weight: 40 portions of acetochlor, which is missible oil, and also comprises 10 portions of emulsifier and xylene for supplement.
Example 3
A green Chinese onion field compound herbicide comprises the following active ingredients in parts by weight: 10 parts of oxadiazon, wherein the herbicide is missible oil, and also comprises 10 parts of emulsifier and xylene for supplementing.
Example 4
A green Chinese onion field compound herbicide comprises the following active ingredients in parts by weight: 3 portions of haloxyfop-R-methyl, 40 portions of acetochlor, and 10 portions of emulsifier and dimethylbenzene.
Example 5
A green Chinese onion field compound herbicide comprises the following active ingredients in parts by weight: 40 parts of acetochlor, 10 parts of oxadiazon, wherein the herbicide is missible oil and also comprises 10 parts of emulsifier and xylene for supplementing.
Example 6
A green Chinese onion field compound herbicide comprises the following active ingredients in parts by weight: 3 parts of haloxyfop-R-methyl, 10 parts of oxadiazon, wherein the herbicide is missible oil, and also comprises 10 parts of emulsifier and xylene for supplementing.
Example 7
A green Chinese onion field compound herbicide comprises the following active ingredients in parts by weight: 3 parts of haloxyfop-R-methyl, 40 parts of acetochlor and 10 parts of oxadiazon, wherein the herbicide is missible oil and also comprises 10 parts of emulsifier and xylene for supplementing.
Example 8
A green Chinese onion field compound herbicide comprises the following active ingredients in parts by weight: 10 parts of haloxyfop-R-methyl, 40 parts of acetochlor and 1 part of oxadiazon, wherein the herbicide is missible oil and also comprises 10 parts of emulsifier and xylene for supplementing.
Example 9
A green Chinese onion field compound herbicide comprises the following active ingredients in parts by weight: the herbicide consists of 3 parts of haloxyfop-methyl, 1 part of acetochlor and 20 parts of oxadiazon, and the herbicide is missible oil and also comprises 10 parts of emulsifier and xylene for supplementing.
Example 10
A green Chinese onion field compound herbicide comprises the following active ingredients in parts by weight: 0.25 portion of haloxyfop-methyl, 40 portions of acetochlor and 5 portions of oxadiazon, the herbicide is missible oil, and also comprises 10 portions of emulsifier and xylene for supplementing.
The above examples were selected to perform field efficacy experiments for controlling weeds in a green Chinese onion field to verify the effect of the formulation for controlling annual grassy weeds and broadleaf weeds in the green Chinese onion field, and simultaneously the synergistic effect after compounding was determined by comparing with the single dosage of haloxyfop, acetochlor and oxadiazon, and the specific implementation was as follows:
experiment: 60% high-efficiency haloxyfop-ethyl acetochlor oxadiazon missible oil (English formulation abbreviation: EC) and different agents for controlling weeds in green Chinese onion fields. The test site is Shandong province, Zhangqin county, the time is 3 months and 20 days in 2019, the field green Chinese onions are about 8cm high, the weeds are in 6-8 leaf stage, the test agents are prepared according to the above examples, 10% high-efficiency haloxyfop emulsifiable concentrate (English formulation abbreviation: EC), 40% acetochlor (English formulation abbreviation: EC) and 10% oxadiazon emulsifiable concentrate (English formulation abbreviation: EC) are compared, ten treatments are carried out in the test, each treatment is carried out for three times, the cells are randomly arranged, and the area of each cell is 60m & lt 2 & gt. Spraying stem and leaf once, and observing the plant control effect of each medicament 15 days and 30 days after the medicament is applied. Recording weather data of a week, which is as follows:
weather data during the test
Figure BDA0002483491130000081
The investigation objects are field descurainia sophia and brome, and the visual test shows that the pesticide has no phytotoxicity on field wheat. The control effect is calculated according to the following formula:
Figure BDA0002483491130000082
the test results are given in the following table:
the 60 percent high-efficiency haloxyfop-acetochlor-oxadiazon missible oil and different agents are used for controlling the weed in the green Chinese onion field:
Figure BDA0002483491130000083
from the data, it can be obviously seen that after the high-efficiency haloxyfop, the acetochlor and the oxadiazon are compounded in a ternary way, the control rate of a single agent and the control rate of a binary way are obviously improved, meanwhile, the control effect of all the ternary compounding examples on sparrow wheat and descurainia sophia exceeds 50%, when the effective component dosage of the high-efficiency haloxyfop reaches 3 g/mu, the effective component dosage of the acetochlor reaches 40 g/mu, and when the dosage of the oxadiazon reaches 10 g/mu, the control effect exceeds 85%, compared with three single agents, the compound preparation has much higher control effect on two weeds, the synergistic effect is obvious, and meanwhile, the control effect of the compound preparation in 30 days and the control effect in 15 days are improved to a certain extent, so that the compound preparation prolongs the lasting period. Meanwhile, acetochlor is a herbicide with a blocking effect which is recognized by people, and the acetochlor has a synergistic effect in the formula.
In conclusion, after the high-efficiency haloxyfop, the acetochlor and the oxadiazon are compounded, the composition has very obvious synergistic effect, has obvious control effect on gramineous weeds and broadleaf weeds, prolongs the duration while expanding the weeding spectrum, reduces the medication cost of farmers and improves the economic benefit.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (3)

1. A green Chinese onion field compound herbicide is characterized in that: the active ingredients comprise a component A, a component B and a component C, wherein the component A comprises quizalofop-p-ethyl, clethodim, haloxyfop-R-methyl and fluazifop-p-butyl. The component B comprises acetochlor, pretilachlor, metolachlor, propisochlor, alachlor and the like. The active ingredients of the composition comprise 0.5-10 parts by weight of component A, 0.1-80 parts by weight of component B and 0.5-20 parts by weight of component C.
2. The green Chinese onion field compound herbicide as claimed in claim 1, wherein: the active ingredients and the auxiliary materials are prepared into missible oil, water dispersible granules, aqueous emulsion and powder.
3. The green Chinese onion field compound herbicide as claimed in claim 1, which comprises two or three components contained therein, and a compound preparation containing the two or three components.
CN202010385002.2A 2020-05-09 2020-05-09 Compound herbicide for green Chinese onion fields Pending CN111466388A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105052931A (en) * 2015-08-13 2015-11-18 广东中迅农科股份有限公司 Synergistic water emulsion for weeding
CN106070329A (en) * 2016-06-20 2016-11-09 河南中天恒信生物化学科技有限公司 A kind of selective herbicide and synthesis technique thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105052931A (en) * 2015-08-13 2015-11-18 广东中迅农科股份有限公司 Synergistic water emulsion for weeding
CN106070329A (en) * 2016-06-20 2016-11-09 河南中天恒信生物化学科技有限公司 A kind of selective herbicide and synthesis technique thereof

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Application publication date: 20200731