CN105613551A - Compound herbicide for corn field - Google Patents
Compound herbicide for corn field Download PDFInfo
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- CN105613551A CN105613551A CN201610076679.1A CN201610076679A CN105613551A CN 105613551 A CN105613551 A CN 105613551A CN 201610076679 A CN201610076679 A CN 201610076679A CN 105613551 A CN105613551 A CN 105613551A
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- Prior art keywords
- mesotrione
- atrazine
- formamido group
- sulfometuron methyl
- herbicide
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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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
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/10—Sulfones; Sulfoxides
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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
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
- A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
- A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
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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)
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- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to the field of herbicide and provides a compound herbicide for a corn field. The compound herbicide is compounded by foramsulfuron, mesotrione and atrazine, wherein the weight ratio of the foramsulfuron to the mesotrione to the atrazine is 1-10:1-30:1-80. The compound herbicide has the advantages that the herbicide has evident selectivity, the weeding effect of the herbicide is clearly increased along with the increasing of the use amount of the herbicide, the herbicide can control the weeds in the whole growing period when the herbicide is applied once, an evident weeding effect is achieved, and the herbicide is environmental friendly and good in safety to corn and does not affect next-stubble crops; compared with the prior art, the compound herbicide can prevent and kill gramineous weeds, broad-leaf weeds and cyperaceae weeds and is promising in application prospect.
Description
Technical field
The present invention relates to herbicide field, specifically a kind of corn field complex weedicide.
Background technology
Semen Maydis is not only the topmost cereal crops of China, one of Ye Shi world staple food crop. Beyond America, original producton location, China is one of area of popularizing the most of corn planting. Semen Maydis is also the cereal crops that whole world total output is the highest. According to statistics, american corn yield in 2012 is 272,432 kilotons, and Semen Maydis consumption figure is 254,444 kilotons, are the whole world maximum Semen Maydis production and marketing states, and China's volume of production and marketing in 2012 is only second to the U.S., Chinese maize yield 200 in 2012,000 kiloton, consumes 201,000 kilotons. Crop smothering is one of factor of restriction corn with high yield stable yields. The long-term occurring area of China's corn field weed, more than 3.5 hundred million mu times, can cause Semen Maydis to lose about 9,500,000,000 kilograms every year. Therefore, the usage ratio of domestic corn field herbicide nearly reaches 100%, and its dosage is very big.
In recent years, along with the fast development of glyphosate-resistant weeds, sulfonylurea herbicide obtains the bigger market space. Formamido group Sulfometuron Methyl is an important kind in sulfonylurea herbicide, Germany's Baeyer successfully develop, and has selectivity height, efficient, low toxicity, the feature to succession crop safety.
Mesotrione is effective inhibitor of HPPD (4 one hydroxyphenyl pyravate dual oxide enzyme), environmentally friendly, can quickly degrade widely, and final metabolite is carbon dioxide, half-life average out in soil 9 days, there is fast degradation in soil, and the feature such as consumption is low. Mesotrione soil treatment or stem and leaf process the selection number to Semen Maydis more than 4 (by biological activity and the known mesotrione of safety experiment result to each corn variety ED10>=600 or 800g/hm, the ED to weeds90It is 100��150g/hm), illustrate that it is good to the safety of Semen Maydis.
Atrazine is later developed into, by the Jia Ji company Development and Production of Switzerland, the herbicide that world wide production is maximum in 1958, and China started to produce in the seventies. Its herbicide spectrum is relatively wide, can prevent and kill off multiple annual gramineae and broad leaved weed. Herba Digitariae, barnyard grass, Herba Setariae Viridis, dried tuber, amur foxtail, knotweed, Herba chenopodii, Cruciferae, pulse family weeds are prevented and kill off suitable in dry crops such as Semen Maydis, Sorghum vulgare Pers., Caulis Sacchari sinensis, fruit tree, nursery, forest lands, especially Semen Maydis is had good selectivity (because there being detoxication mechanisms in Corn), some perennial weeds is also had certain inhibitory action.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of corn field complex weedicide, can prevent and kill off grassy weed, can prevent and kill off again broad leaved weed, and respond well.
The present invention is achieved by the following technical solutions:
A kind of corn field complex weedicide, it is characterized in that: described corn field complex weedicide includes formamido group Sulfometuron Methyl, mesotrione and three kinds of former recurrence due to taking drug of atrazine and joins, and wherein the weight ratio of formamido group Sulfometuron Methyl, mesotrione and atrazine is 1��10:1��30:1��80.
A kind of corn field complex weedicide of the present invention, the weight ratio of described formamido group Sulfometuron Methyl, mesotrione and atrazine is 1��5:8��12:30��50.
A kind of corn field complex weedicide of the present invention, described formamido group Sulfometuron Methyl, mesotrione and atrazine three's weight percentage sum are the 0.1��90% of corn field complex weedicide gross weight.
A kind of corn field complex weedicide of the present invention, it is characterised in that: described formamido group Sulfometuron Methyl, mesotrione and atrazine three's weight percentage sum are the 12��80% of corn field complex weedicide gross weight.
A kind of corn field complex weedicide of the present invention, also includes dispersant, safener and reagent carrier and the mixture of one or more in wetting agent, disintegrating agent, binding agent, thickening agent, preservative in described corn field complex weedicide.
A kind of corn field complex weedicide of the present invention, described dispersant, wetting agent, disintegrating agent, binding agent, thickening agent, preservative, safener percentage by weight be 0.1��20%, 0.1��10%, 0.1��20%, 0.1��20%, 0.1��10%, 0.1��5%, 0.1��5%, surplus is reagent carrier.
A kind of corn field complex weedicide of the present invention, the dosage form of described corn field complex weedicide is for dispersibling oil-suspending agent, granule, wettable powder, water dispersible granules or aqueous suspension agent.
The beneficial effects of the present invention is:
The Security test test of Semen Maydis is shown, formamido group Sulfometuron Methyl mesotrione atrazine stem and leaf processes, it is suppressed that the ED of corn growth 10%10=1968.0878mg/kg, it is suppressed that the ED of weed growth 90%90=253.2570mg/kg, selectivity factor is 1968.0878/253.2570=7.77 > 2, it is believed that this medicament has obvious selectivity, and Semen Maydis is had good safety by formamido group Sulfometuron Methyl mesotrione atrazine.
Complex weedicide of the present invention is shown by the field control effectiveness test of 2 years, and in the Semen Maydis 3 leaf phase, weeds 2��5 leaf does not wait the phase, and Semen Maydis has no symptom of chemical damage from dispenser to period of maturation, to corn safety. The preventive effect of weeds reaches more than 80% in 10 days, within 40 days, reaches more than 92%, along with the increase of dosage, preventive effect is remarkably reinforced, and a dispenser can control the weeds in the whole trophophase of crop, and not only herbicidal effect is notable, and environmentally friendly, on second stubble crop without impact.
Compared with prior art, complex weedicide of the present invention can prevent and kill off grassy weed, can prevent and kill off again broad leaved weed and sedge weed, to corn safety, and on succession crop without impact, have a good application prospect.
Detailed description of the invention
For being best understood from the present invention, below in conjunction with embodiment, the invention will be further described, and following example are only that the present invention will be described but not it is limited.
Embodiment 1
A kind of maize post-emergence compound herbicide, its dosage form is 0.1% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granule, and 0.1% refers to that formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight; It includes following components: 3g formamido group Sulfometuron Methyl, 19g mesotrione, 78g atrazine, 20kg dispersant D-425 (naphthalenesulfonate formaldehyde condensation compound), 10kg wetting agent EFW (mixture of alkylnaphthalene sulfonate and anion wetting agent), 20kg ammonium sulfate disintegrating agent, 20kgPVA (polyvinyl alcohol) binding agent, 5kg safener isoxadifen, carrier Kaolin 24.9kg. Said components is adequately mixed, comminution by gas stream, be mixed to get product.
Embodiment 2
A kind of maize post-emergence compound herbicide, its dosage form is 3% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granule, and 3% refers to that formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight; It includes following components: 1kg formamido group Sulfometuron Methyl, 1kg mesotrione, 1kg atrazine, 10kg dispersant D-425 (naphthalenesulfonate formaldehyde condensation compound), 5kg wetting agent EFW (mixture of alkylnaphthalene sulfonate and anion wetting agent), 20kg ammonium sulfate disintegrating agent, 5kgPVA (polyvinyl alcohol) binding agent, 1kg safener isoxadifen, carrier Kaolin 56kg. Said components is adequately mixed, comminution by gas stream, pelletize obtain product.
Embodiment 3
A kind of maize post-emergence compound herbicide, its dosage form is 12% formamido group Sulfometuron Methyl mesotrione atrazine aqueous suspension, and 12% refers to that formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight; It includes following components: 1kg formamido group Sulfometuron Methyl, 3kg mesotrione, 8kg atrazine, 10kg dispersant NNO (sodium methylene bis-naphthalene sulfonate), 8kg wetting agent K12 (sodium lauryl sulphate), 10kg thickening agent xanthan gum, 5kg Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination), 2kg safener isoxadifen, carrier water 53kg. Said components is adequately mixed, ball mill pulverizing, be mixed to get product.
Embodiment 4
A kind of maize post-emergence compound herbicide, its dosage form is 56% formamido group Sulfometuron Methyl mesotrione atrazine wettable powder, and 56% refers to that formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight; It includes following components: 2kg formamido group Sulfometuron Methyl, 6kg mesotrione, 48kg atrazine, 4kg dispersant NNO (sodium methylene bis-naphthalene sulfonate), 3kg wetting agent K12 (sodium lauryl sulphate), 1kg safener isoxadifen, carrier precipitated calcium carbonate 36kg. Said components is adequately mixed, comminution by gas stream, be mixed to get product.
Embodiment 5
A kind of maize post-emergence compound herbicide, its dosage form is 22% formamido group Sulfometuron Methyl mesotrione atrazine aqueous suspension, and 22% refers to that formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight; It includes following components: 2kg formamido group Sulfometuron Methyl, 4kg mesotrione, 16kg atrazine, 4kg dispersant NNO (sodium methylene bis-naphthalene sulfonate), 3kg wetting agent K12 (sodium lauryl sulphate), 0.3kg thickening agent xanthan gum, 0.1kg Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination), 1kg safener isoxadifen, carrier water 69.6kg. Said components is adequately mixed, ball mill pulverizing, be mixed to get product.
Embodiment 6
A kind of maize post-emergence compound herbicide, its dosage form is that 22% formamido group Sulfometuron Methyl mesotrione atrazine dispersibles oil-suspending agent, 22% refers to that formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight, include following components: 2kg formamido group Sulfometuron Methyl, 10kg mesotrione, 10kg atrazine, 15kg dispersant Pluronic125 (block polyether nonionic surfactant), 2kg thickening agent bentonite, 1kg safener isoxadifen, carrier methyl oleate 60kg. Said components is through being sufficiently mixed allotment, ball mill pulverizing, adjust, being packaged to be product.
Embodiment 7
A kind of maize post-emergence compound herbicide, its dosage form is 39% formamido group Sulfometuron Methyl mesotrione atrazine aqueous suspension, and 39% refers to that formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight; It includes following components: 1kg formamido group Sulfometuron Methyl, 8kg mesotrione, 30kg atrazine, 8kg dispersant NNO (sodium methylene bis-naphthalene sulfonate), 6kg wetting agent K12 (sodium lauryl sulphate), 2kg thickening agent xanthan gum, 1kg Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination), 2kg safener isoxadifen, carrier water 42kg. Said components is adequately mixed, ball mill pulverizing, be mixed to get product.
Embodiment 8
A kind of maize post-emergence compound herbicide, its dosage form is 43% formamido group Sulfometuron Methyl mesotrione atrazine aqueous suspension, and 43% refers to that formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight; It includes following components: 1kg formamido group Sulfometuron Methyl, 12kg mesotrione, 30kg atrazine, 5kg dispersant NNO (sodium methylene bis-naphthalene sulfonate), 7kg wetting agent K12 (sodium lauryl sulphate), 3kg thickening agent xanthan gum, 2kg Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination), 2kg safener isoxadifen, carrier water 38kg. Said components is adequately mixed, ball mill pulverizing, be mixed to get product.
Embodiment 9
A kind of maize post-emergence compound herbicide, its dosage form is 43% formamido group Sulfometuron Methyl mesotrione atrazine aqueous suspension, and 43% refers to that formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight; It includes following components: 5kg formamido group Sulfometuron Methyl, 8kg mesotrione, 30kg atrazine, 5kg dispersant NNO (sodium methylene bis-naphthalene sulfonate), 6kg wetting agent K12 (sodium lauryl sulphate), 3kg thickening agent xanthan gum, 2kg Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination), 1kg safener isoxadifen, carrier water 40kg. Said components is adequately mixed, ball mill pulverizing, be mixed to get product.
Embodiment 10
A kind of maize post-emergence compound herbicide, its dosage form is 47% formamido group Sulfometuron Methyl mesotrione atrazine aqueous suspension, and 47% refers to that formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight; It includes following components: 5kg formamido group Sulfometuron Methyl, 12kg mesotrione, 30kg atrazine, 8kg dispersant NNO (sodium methylene bis-naphthalene sulfonate), 6kg wetting agent K12 (sodium lauryl sulphate), 3kg thickening agent xanthan gum, 2kg Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination), 2kg safener isoxadifen, carrier water 32kg. Said components is adequately mixed, ball mill pulverizing, be mixed to get product.
Embodiment 11
A kind of maize post-emergence compound herbicide, its dosage form is 59% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granule, 59% refers to formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight, include following components: it includes following components: 1kg formamido group Sulfometuron Methyl, 8kg mesotrione, 50kg atrazine, 7kg dispersant D-425 (naphthalenesulfonate formaldehyde condensation compound), 2kg wetting agent EFW (mixture of alkylnaphthalene sulfonate and anion wetting agent), 8kg ammonium sulfate disintegrating agent, 3kgPVA (polyvinyl alcohol) binding agent, 1kg safener isoxadifen, carrier Kaolin 20kg. said components is adequately mixed, comminution by gas stream, mixing, pelletize, dry and screening obtain product.
Embodiment 12
A kind of maize post-emergence compound herbicide, its dosage form is 63% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granule, 63% refers to formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight, include following components: it includes following components: 1kg formamido group Sulfometuron Methyl, 12kg mesotrione, 50kg atrazine, 7kg dispersant D-425 (naphthalenesulfonate formaldehyde condensation compound), 3kg wetting agent EFW (mixture of alkylnaphthalene sulfonate and anion wetting agent), 7kg ammonium sulfate disintegrating agent, 2kgPVA (polyvinyl alcohol) binding agent, 1kg safener isoxadifen, carrier Kaolin 17kg. said components is adequately mixed, comminution by gas stream, mixing, pelletize, dry and screening obtain product.
Embodiment 13
A kind of maize post-emergence compound herbicide, its dosage form is 63% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granule, 63% refers to formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight, include following components: it includes following components: 5kg formamido group Sulfometuron Methyl, 8kg mesotrione, 50kg atrazine, 4kg dispersant D-425 (naphthalenesulfonate formaldehyde condensation compound), 5kg wetting agent EFW (mixture of alkylnaphthalene sulfonate and anion wetting agent), 10kg ammonium sulfate disintegrating agent, 2kgPVA (polyvinyl alcohol) binding agent, 1kg safener isoxadifen, carrier Kaolin 15kg. said components is adequately mixed, comminution by gas stream, mixing, pelletize, dry and screening obtain product.
Embodiment 14
A kind of maize post-emergence compound herbicide, its dosage form is 67% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granule, 67% refers to formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight, include following components: it includes following components: 5kg formamido group Sulfometuron Methyl, 12kg mesotrione, 50kg atrazine, 8kg dispersant D-425 (naphthalenesulfonate formaldehyde condensation compound), 8kg wetting agent EFW (mixture of alkylnaphthalene sulfonate and anion wetting agent), 5kg ammonium sulfate disintegrating agent, 5kgPVA (polyvinyl alcohol) binding agent, 1kg safener isoxadifen, carrier Kaolin 6kg. said components is adequately mixed, comminution by gas stream, mixing, pelletize, dry and screening obtain product.
Embodiment 15
A kind of maize post-emergence compound herbicide, its dosage form is 80% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granule, 80% refers to formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight, include following components: it includes following components: 2kg formamido group Sulfometuron Methyl, 6kg mesotrione, 72kg atrazine, 7kg dispersant D-425 (naphthalenesulfonate formaldehyde condensation compound), 1kg wetting agent EFW (mixture of alkylnaphthalene sulfonate and anion wetting agent), 5kg ammonium sulfate disintegrating agent, 2kgPVA (polyvinyl alcohol) binding agent, 1kg safener isoxadifen, carrier Kaolin 4kg. said components is adequately mixed, comminution by gas stream, mixing, pelletize, dry and screening obtain product.
Embodiment 16
A kind of maize post-emergence compound herbicide, its dosage form is 90% formamido group Sulfometuron Methyl mesotrione atrazine granule, and 90% refers to that formamido group Sulfometuron Methyl, mesotrione and three kinds of active components of atrazine account for the percentage ratio of gross weight; Including following components: 0.8kg formamido group Sulfometuron Methyl, 24.4kg mesotrione, 64.8kg atrazine, 6kg dispersant D-425 (naphthalenesulfonate formaldehyde condensation compound), 1kg wetting agent EFW (mixture of alkylnaphthalene sulfonate and anion wetting agent), 2kg safener isoxadifen, carrier Kaolin 1kg. Said components is adequately mixed, comminution by gas stream, be mixed to get product.
Raw survey experimental result:
One, the Security test of Semen Maydis is tested by the process of formamido group Sulfometuron Methyl mesotrione atrazine stem and leaf:
1, test objective: under greenhouse experiment, adopt pot-culture method, research formamido group Sulfometuron Methyl, mesotrione and atrazine ternary built stem and leaf process the safety to Semen Maydis, and the rational mixture for formamido group Sulfometuron Methyl, mesotrione and atrazine provides scientific basis.
2, for studying thing: corn variety Zheng Dan 958: Herba Digitariae (Digitariasanguinalis (Linn.) Scop.), Herba Setariae Viridis (Setariaviridis (L.) Beauv.), Herba Acalyphae (AcalyphaaustralisL.), Herba chenopodii (ChenopodiumalbumL.), Herba Cyperi Difformis (CyperusdifformisL.) (upper one year gathered seed in field, and germination percentage is more than 85%).
3, in illumination cultivation room, carry out the cultivation of test material, temperature 25��30 DEG C. Choosing diameter is 15cm, is highly the vinyon basin alms bowl of 15cm. During test, 20, every kind weed seed of corn seed 30��40 is uniformly put into earthing 0.5cm in basin, put into and the required moisture of growth during temperature indoor cultivation (25��30 DEG C), maize seedling and weeds are cultivated, should be supplemented. Staying the Seedling that 10 strains are healthy and strong after all sprouting, when maize seedling grows to 3��4 leaves and weeds grow to 2��5, dispenser processes. By moisturizing regular in the way of top-watered (not watering in 2 days after medicine), keep soil moisture.
4, reagent agent: the former medicine of 98% formamido group Sulfometuron Methyl (Anhui Fengle Agricultural Co., Ltd provides for oneself); The 97% former medicine of mesotrione (Anhui Zhong Shan Chemical Co., Ltd.); 97% atrazine (Shandong Binnong Technology Co., Ltd.). Weigh quantitative former medicine with electronic balance, add appropriate emulsifying agent, with acetone solution, finally with the Tween 80 aqueous solution of 0.1%, above-mentioned former medicine is diluted to desired concn.
5, application method: process in Semen Maydis 3 leaf phase, the stem and leaf spraying of weeds 2��4 leaf phase. Spray medicine adopts the indoor crown-block type atomizing tester of adjustable speed, simulation field conventional spraying methods. Shower nozzle is Fan spray head, and model is Teejer8002E type, spray value 40 kgs/acre. Spray height 0.5 meter, spraying swath 0.7 meter, leg speed 0.224 meter per second. Atomisation pressure 2.0 MPas, flow 697 liters/min. Test and carry out reagent spray process, dispenser 1 time in the Semen Maydis 3 leaf phase.
6, investigation and computational methods:
After dispenser, investigate each process Semen Maydis with or without symptom of chemical damage, if having, itemized record symptom of chemical damage, grade, after medicine 20 days, measure each process Semen Maydis fresh weight, calculate fresh weight inhibition, with the safety to Semen Maydis of the clear and definite test medicine.
The damage symptoms (such as growth inhibited, chlorosis, deformity etc.) of itemized record weeds after dispenser, after medicine 20 days, weighs each process weeds aerial parts fresh weight, calculates the fresh weight preventive effect of weeds.
With DPS software, the logarithm value of drug dose and the probability value of Semen Maydis fresh weight inhibition are carried out regression analysis, dosage ED when calculating correlation coefficient and suppress crop 10%10, and dosage ED during suppression weeds 90%90, obtain selectivity index. Wherein, selectivity index=ED10/ED90��
7, result and analysis:
60% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granule stem and leaf processes the impact on Semen Maydis:
Safety evaluatio standard is shown inTable 1, within after dispenser 3 days, observing, 60% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granule high concentration 1600mg/kg processes indivedual Semen Maydis lobus cardiacuses slight jaundice, and growth is subject to slight suppression, and it is normal that other concentration processes corn growth; After dispenser 7��12 days, it is normal that low concentration processes Semen Maydis growing way, and 1600mg/kg processes Semen Maydis and also slowly recovers. After dispenser 20 days, the inhibitory action of Semen Maydis was shown in by 60% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granuleTable 2��Table 3For after dispenser 20 days, 60% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granule was to weedsPoisoningOperative condition and preventive effect.
Table 1Activity of weeding and crop safety ocular estimate evaluation criterion
Table 2The 60% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granule inhibitory action to Semen Maydis
Table 3The 60% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granule fresh weight preventive effect to weeds
ByTable 3This medicament known is to weedsPoisoningOperative condition and preventive effect, calculate its virulence regression equation, LD by formula50, it is listed inTable 4��
Table 4Virulence regression equation and LD50
| Process | Regression equation | Correlation coefficient | LD50 | 95% confidence interval |
| A | Y=0.5743+2.3745x | 0.9927 | 73.0885 | 63.4344��84.2118 |
ByTable 4Known: the LD of 60% formamido group Sulfometuron Methyl mesotrione atrazine water dispersible granule50For: 73.0885mg/kg, 95% confidence interval is 63.4344 84.2118mg/kg.
Formamido group Sulfometuron Methyl mesotrione atrazine stem and leaf processes the selectivity index to Semen Maydis and weeds: byTable 2��Table 3, the ED suppressing corn growth 10% is tried to achieve by DPS software10=1968.0878mg/kg, it is suppressed that the ED of weed growth 90%90=253.2570mg/kg, selectivity factor is 1968.0878/253.2570=7.77 > 2, it is believed that this medicament has obvious selectivity, it is possible to carry out field control effectiveness test.
8, overall merit: this result of the test shows, formamido group Sulfometuron Methyl mesotrione atrazine stem and leaf processes high concentration (4 times of recommended dose high dose) process can cause Semen Maydis yellow to Semen Maydis, and it is normal that other concentration processes (recommended dose high dose and times amount thereof) corn growth. By Toxicity Determination it can be seen that formamido group Sulfometuron Methyl mesotrione atrazine Semen Maydis has good safety, weeds are had good prevention effect.
Two, the field control effectiveness test of 22% formamido group Sulfometuron Methyl mesotrione atrazine herbicide and single herbicide:
By the field control effectiveness test of 2 years, in the Semen Maydis 3 leaf phase, weeds 2-5 leaf does not wait the phase, the 22% formamido group Sulfometuron Methyl mesotrione atrazine (2% formamido group Sulfometuron Methyl+10% mesotrione+10% atrazine) utilizing the embodiment of the present invention 6 dispersibles oil-suspending agent (OD), dosage 80, 100, 120, 200 milliliters/mu, it is watered 40 kgs/acre to spray, 10, 30 days and period of maturation range estimation corn safety and Weed-control effect, 10, within 30 days, survey all preventive effects, and dispersible oil-suspending agent with single sprinkling 150 milliliter/mu 2.5% formamido group Sulfometuron Methyl, 80 milliliter/mu 15% mesotrione suspending agents compare, result asTable 5 below:
Table 5
Note:Table 5In, each data of blank are weeds strain number (strain), and other each data are strain preventive effect (%).
By estimating, Semen Maydis has no symptom of chemical damage from dispenser to period of maturation, to corn safety. 12% formamido group Sulfometuron Methyl mesotrione OD80 milliliter/mu preventive effect to weeds, within 10 days, reach more than 80%, within 40 days, reach more than 92%, increase along with dosage, preventive effect is remarkably reinforced, and at corn field 80 milliliter/mu, weeds can have good herbicidal effect, compare with being used alone one of which effective ingredient, expand herbicide spectrum, grassy weed and broad leaved weed are had obvious potentiation.
Three, the field control effectiveness test of other different ratio formamido group Sulfometuron Methyl mesotrione atrazine herbicide:
By other different ratio formamido group Sulfometuron Methyl mesotrione field control effectiveness test in 2 years of atrazine herbicide is shown, in the Semen Maydis 3 leaf phase, weeds 2-5 leaf does not wait the phase, utilize 0.1% formamido group Sulfometuron Methyl mesotrione atrazine (0.03% formamido group Sulfometuron Methyl+0.019% mesotrione+0.078% atrazine) water dispersible granules (WG) of the embodiment of the present invention 1, 3% formamido group Sulfometuron Methyl mesotrione atrazine (1% formamido group Sulfometuron Methyl+1% mesotrione+1% atrazine) WG of embodiment 2, 12% formamido group Sulfometuron Methyl mesotrione atrazine (1% formamido group Sulfometuron Methyl+3% mesotrione+8% atrazine) aqueous suspension (SC) of embodiment 3, 80% formamido group Sulfometuron Methyl mesotrione atrazine (2% formamido group Sulfometuron Methyl+6% mesotrione+72% atrazine) WG of embodiment 15 and 90% formamido group Sulfometuron Methyl mesotrione atrazine (0.8% formamido group Sulfometuron Methyl+24.4% mesotrione+64.8% atrazine) granule of embodiment 16, each plant demand, it is watered 40 kgs/acre to spray, 10, 30 days and period of maturation range estimation corn safety and Weed-control effect, 10, within 30 days, survey all preventive effects, result asTable 6 below:
Table 6The different ratio formamido group Sulfometuron Methyl mesotrione atrazine effect to weeds
Note:Table 6In, each data of blank are weeds strain number (strain), and other each data are strain preventive effect (%).
By estimating, Semen Maydis has no symptom of chemical damage from dispenser to period of maturation, to corn safety. All types of weeds are all had certain preventive effect by the complex weedicide made by embodiment 1,2,3,15 and 16, and along with the increase of effective ingredient ratio and dosage, preventive effect is remarkably reinforced, and normal usage can reach reasonable preventive effect.
The dispenser of the complex weedicide of the present invention can control the weeds in the whole trophophase of crop, and not only herbicidal effect is notable, and environmentally friendly, on second stubble crop without impact, the pollution of environment is little, to people, animal, birds and beneficial organism safety, be conducive to keeping ecological balance. It addition, the herbicide of the present invention adopts physical method processing, production technology is simple, and ecological environment is had no adverse effects by three-waste free discharge in production process. It it is the desirable complex weedicide of current prevention effect.
The above embodiment is only that the preferred embodiment of the present invention is described, not the scope of the present invention is defined, under the premise designing spirit without departing from the present invention, various deformation that technical scheme is made by those of ordinary skill in the art and improvement, all should fall into the present invention'sClaimIn the protection domain that book is determined.
Claims (7)
1. a corn field complex weedicide, it is characterized in that: described corn field complex weedicide includes formamido group Sulfometuron Methyl, mesotrione and three kinds of former recurrence due to taking drug of atrazine and joins, and wherein the weight ratio of formamido group Sulfometuron Methyl, mesotrione and atrazine is 1 ~ 10:1 ~ 30:1 ~ 80.
2. a kind of corn field complex weedicide according to claim 1, it is characterised in that: the weight ratio of described formamido group Sulfometuron Methyl, mesotrione and atrazine is 1 ~ 5:8 ~ 12:30 ~ 50.
3. a kind of corn field complex weedicide according to claim 1, it is characterised in that: described formamido group Sulfometuron Methyl, mesotrione and atrazine three's weight percentage sum are the 0.1 ~ 90% of corn field complex weedicide gross weight.
4. a kind of corn field complex weedicide according to claim 1, it is characterised in that: described formamido group Sulfometuron Methyl, mesotrione and atrazine three's weight percentage sum are the 12 ~ 80% of corn field complex weedicide gross weight.
5. a kind of corn field complex weedicide according to claim 1, it is characterized in that: described corn field complex weedicide also includes dispersant, safener and reagent carrier and the mixture of one or more in wetting agent, disintegrating agent, binding agent, thickening agent and preservative.
6. a kind of corn field complex weedicide according to claim 5, it is characterized in that: described dispersant, wetting agent, disintegrating agent, binding agent, thickening agent, preservative, safener percentage by weight be 0.1 ~ 20%, 0 ~ 10%, 0 ~ 20%, 0 ~ 20%, 0 ~ 10%, 0 ~ 5%, 0.1 ~ 5%, surplus is reagent carrier.
7. a kind of corn field complex weedicide according to any one of claim 1 ~ 6, it is characterised in that: the dosage form of described corn field complex weedicide is for dispersibling oil-suspending agent, granule, wettable powder, water dispersible granules or aqueous suspension agent.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1147252A (en) * | 1994-04-29 | 1997-04-09 | 赫彻斯特-舍林农业发展有限公司 | Acylated aminophenylsulphonylureas, process for their preparation and their use as herbicides and plant-growth regulators |
| CN1642427A (en) * | 2002-03-05 | 2005-07-20 | 拜尔作物科学有限公司 | Herbicide combination with acylated aminophenylsulfonylureas |
| CN105613550A (en) * | 2015-12-30 | 2016-06-01 | 北京明德立达农业科技有限公司 | Herbicide combination and application thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147252A (en) * | 1994-04-29 | 1997-04-09 | 赫彻斯特-舍林农业发展有限公司 | Acylated aminophenylsulphonylureas, process for their preparation and their use as herbicides and plant-growth regulators |
| US5922646A (en) * | 1994-04-29 | 1999-07-13 | Hoechst Schering Agrevo Gmbh | Acylated aminophenylsulfonylureas, processes for their preparation and their use as herbicides and plant growth regulators |
| US6498253B1 (en) * | 1994-04-29 | 2002-12-24 | Hoechst Schering Agrevo Gmbh | Acylated aminophenylsulfonylureas, processes for their preparation and their use as herbicides and plant growth regulators |
| CN1642427A (en) * | 2002-03-05 | 2005-07-20 | 拜尔作物科学有限公司 | Herbicide combination with acylated aminophenylsulfonylureas |
| CN105613550A (en) * | 2015-12-30 | 2016-06-01 | 北京明德立达农业科技有限公司 | Herbicide combination and application thereof |
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