CN102415388A - Environmentally friendly high efficiency paddy field herbicide and preparation method thereof - Google Patents
Environmentally friendly high efficiency paddy field herbicide and preparation method thereof Download PDFInfo
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- CN102415388A CN102415388A CN2011103468518A CN201110346851A CN102415388A CN 102415388 A CN102415388 A CN 102415388A CN 2011103468518 A CN2011103468518 A CN 2011103468518A CN 201110346851 A CN201110346851 A CN 201110346851A CN 102415388 A CN102415388 A CN 102415388A
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Abstract
The invention discloses an environmentally friendly high efficiency paddy field herbicide and a preparation method thereof. The active component of the herbicide is bispyribac-sodium. The herbicide comprises the following components, by weight, 5-60% of bispyribac-sodium, 1-5% of a wetting agent, 2-8% of a dispersant, 5-30% of a synergist, 1-10% of a disintegrant, 0.5-2% of a binder, and the balance filler. The preparation method comprises the following steps: mixing above raw materials except the binder, crushing, adding the binder, granulating, detecting and screening. The drug effect of the herbicide is 10-20% higher than the drug effect of herbicides prepared with the prior art, and the herbicide allows weed damage problems of the paddy field to be effectively solved and the drug consumption cost to be reduced. The herbicide completely uses no organic solvents, and the pollution of dusts and other harmful substances does not exist in the process of production, packaging and usage, so the herbicide is friendly to environment. The preparation method of the herbicide, which has the advantages of simple technology, low cost and convenient industrialization production, has a wide production application prospect.
Description
Technical field
The invention belongs to pesticidal preparations and preparation method thereof, be specifically related to a kind of environment-friendly high-efficiency herbicide for paddy field and preparation method thereof.
Background technology
In recent years, because high yield, the saving of labor, laborsaving of rice direct seeding field are able to successfully promote in China and a large amount of plantations.But also brought increasing the weight of of crop smothering simultaneously, live field because and weed germination early, the individual growth space is relatively large, grow vigorous, spread soon, will very easily form " farmland running to weeds ".Live by inquiry field grass amount generally is 3～6 times of transplant field, and serious field piece reaches more than 10 times the increase that increases the weight of directly to have caused the weed killer herbicide usage amount of crop smothering.
The herbicide for paddy field that uses at present mainly contains formulation missible oil and wetting powder.The missible oil drug effect is better, but because the poisonous organic solvent of a large amount of uses, environmental pollution is heavy, toxicity is big, serious waste of resources.The wetting powder drug effect is poor than missible oil, and dust waves, and harmful to producing with the user, environmental pollution is heavy, but owing to it is with low cost, still in occupation of the very big market share.The environmental protection of these two kinds of formulations and increasingly stringent seems incompatible with, will eliminate.Water dispersible granules is as a kind of environmental friendliness preparation; Fully without organic solvent; And no dust pollution in processing, transportation, use has that active constituent content height, wetting suspensibility are high, biologically active is high, safe and packaged convenience, convenient transportation, easy to use and low cost and other advantages.This formulation has become one of most popular formulation at home and abroad, is research, hot of research and development
.
Two careless ethers are pyrimidine salicylic acid weed killer herbicides, are acetolactic acid enzyme inhibitors efficiently, and the biosynthesis that ends branched-chain amino acid through the moon is worked.Be mainly used in paddy field and prevent and treat resistance barnyard grass grass, all effective to 1～7 leaf phase barnyard grass grass, 3～6 leaf phases prevented knowingly following the example of a wrongdoer good.And Asiatic plantain, junglerice, johnson grass, purple water amaranth, dayflower, Sagittaria pygmaea, difformed galingale herb, cyperus iria, big lady's-grass, firefly Lin, bacopa monnieri, carpet weed also there is good preventive effect.The resistance of killing barnyard grass agent dichloro quinolinic acid along with main flow rises year by year; Many peasants reflect that unit consumption that simple dependence increases dichloro quinolinic acid can not effectively control the barnyard grass grass and cause harm; Two careless ethers provide effective solution for this problem; Its efficient, safe, low consumption receives friend's peasant consistent favorable comment, is a kind of herbicide for paddy field that has development prospect.
At present, domestic existing document or product about two careless ether wetting powders and suspending agent also do not have the research of water dispersible granules and synergy aspect thereof in existing product and the document.
Summary of the invention
The purpose of this invention is to provide a kind of environment-friendly high-efficiency herbicide for paddy field and preparation method thereof, overcome environmental pollution that the existing formulations of pesticide exist, be detrimental to health, use cost is high and use shortcomings such as inconvenience, the wasting of resources.
Technical scheme of the present invention: a kind of environment-friendly high-efficiency herbicide for paddy field, herbicidal active component are two careless ethers, and each weight percentages of components is: two careless ethers 5～60%; Wetting agent 1～5%, dispersant 2～8%, synergist 5～30%; Disintegrant 1～10%, binding agent 0.5～2%, surplus is a filler.
Described wetting agent is one or more the combination in sodium alkyl sulfonate, sodium alkyl benzene sulfonate, sodium alkyl sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol, alkyl phenol polyethenoxy ether sodium sulfate, APES succinic acid monoester sodium sulfonate, AEO succinic acid monoester sodium sulfonate, sulfosuccinic monooctyl ester sodium salt, AEO, APES, the N methyl taurine sodium.
Described dispersant is one or more the combination in Tea Saponin, lignosulfonates, naphthalenesulfonate formaldehyde condensation compound, alkylnaphthalene sulfonate formaldehyde condensation products, N-methyl-fatty acyl group taurate, APES, APES formaldehyde condensation products sulphate, polymerization of carboxylic acid salt, the macromolecule EO-PO block copolymer.
Described synergist combines by gathering trisiloxanes, thiophene ketone and potassium dihydrogen phosphate, and the percentage by weight of three's combination is 1:2.5:7.
Described disintegrant is one or more the combination in sodium sulphate, urea, sodium carboxymethyl starch, starch, pregelatinized starch, sodium carbonate, ammonium sulfate, sodium chloride, calcium chloride, the sucrose.
Described binding agent is one or more combination of polyethylene glycol, glucose, sucrose, gum Arabic, water soluble starch.
Described filler is one or more the combination in calcined kaolin, diatomite, precipitated calcium carbonate, white carbon, the bentonite.
A kind of preparation method of environment-friendly high-efficiency herbicide for paddy field carries out as follows.
A, choose two careless ethers, wetting agent, dispersant, synergist, disintegrant, filler, mixer mixes before adding; After coarse crushing, carry out ultramicro grinding, mix in the mixer after adding again, after detection is qualified, carry out subsequent processing, the defective ultramicro grinding operation of returning is reprocessed.
B, the powder that a step is obtained join in the eddy flow fluidization granulation machine and carry out granulation, binding agent with deionized water dissolving after spraying add, obtain the irregular shape particle of particle diameter wider distribution after granulation finishes, detects qualified discharging afterwards.
C, particle that the b step is obtained obtain finished product through bolting.
The technical indicator of two careless ether water dispersible granules products provided by the invention is following.
Advantage of the present invention and good effect are following.
1, neither needs with an organic solvent, do not have dust pollution and bad smell to spread again, safety, environmental protection, economize on resources.
2, finished product is a fine particulate, is convenient to weighing and use, and can in packaging bag, not adhere to, and causes secondary pollution.And the fine particulate product density is big, and the used packing material of Unit Weight obviously is less than wetting powder, has reduced packing cost.
The enhancer composition of 3, adding science screening, drug effect is greatly improved, show through implementation result, the two careless ether water dispersible granules that the present invention makes to 2～5 leaf phase of paddy field barnyard grass grass finally preventive effect up to 90～100%.
4, implementation result shows, the two careless ether water dispersible granules that the present invention makes suspends high (more than 90%), store stable soon by (less than 1 minute), dispersiveness and good fluidity, heat for disintegration rate.
Description of drawings
Fig. 1 is preparation method's of the present invention process chart.
Embodiment
Essence is for a better understanding of the present invention explained technology contents of the present invention with instance below, but content of the present invention is not limited thereto.
In following examples, unless otherwise indicated, all percentages all are weight percentage.
Embodiment 1:Take by weighing two careless ethers 20%, wetting agent lauryl sodium sulfate 4%, dispersant polycarboxylate 2,700 4%, sodium lignin sulfonate 3%, disintegrant sodium sulphate 5%, synergist 11%, filler kaolin is supplemented to 100%.With above-mentioned mixing of materials evenly after, pulverize through airslide disintegrating mill and to obtain female powder, after female powder and binding agent sucrose 0.5%, water are mixed,, sieve through granulation, make 20% pair of careless ether water dispersible granules.Through the check active constituent content is 20.0%, moisture≤1%, and pH value 7.2, screening (through 325 mesh sieves)>=98%, suspensibility>=80%, lasting foaming characteristic (1min)≤10mL, wetability≤1min, the acceleration heat storage stability is qualified.
This embodiment is used to prevent and treat the rice direct-seeding field weed, in the 1 heart stage dispenser of weeds 3 leaves 1 heart stage to 6 leaf, and usage amount 30～45 grams (active ingredient)/hectare; Convert water spray; Preventive effect is 90～100%, and 20% pair of careless ether wetting powder of contrast medicament adopts with the quadrat method dispenser, and preventive effect is 80～90%.
Embodiment 2:Take by weighing two careless ethers 50%, wetting agent lauryl sodium sulfate 4%, dispersant polycarboxylate 2,700 2%, naphthalenesulfonate formaldehyde condensation compound 2%, sodium lignin sulfonate 4%, disintegrant urea 10%, synergist 11%, filler diatomite is supplemented to 100%.With above-mentioned mixing of materials evenly after, pulverize through airslide disintegrating mill and to obtain female powder, after female powder and binding agent sucrose 0.5%, water are mixed,, sieve through granulation, make 50% pair of careless ether water dispersible granules.Through the check active constituent content is 50.0%, moisture≤2.0%, and pH value 7.4, screening (through 325 mesh sieves)>=98%, suspensibility>=80%, lasting foaming characteristic (1min)≤10mL, wetability≤1min, dust≤3.0%, the acceleration heat storage stability is qualified.
This embodiment is used to prevent and treat the rice direct-seeding field weed, in the 1 heart stage dispenser of weeds 3 leaves 1 heart stage to 6 leaf, and usage amount 30～45 grams (active ingredient)/hectare; Convert water spray; Preventive effect is 90～100%, and 20% pair of careless ether wetting powder of contrast medicament adopts with the quadrat method dispenser, and preventive effect is 80～90%.
Embodiment 3:Take by weighing two careless ethers 30%, wetting agent APES 5%, dispersant macromolecule EO-PO block copolymer 4%, sodium lignin sulfonate 4%, disintegrant urea 5%, synergist 11%, filler kaolin is supplemented to 100%.With above-mentioned mixing of materials evenly after, pulverize through airslide disintegrating mill and to obtain female powder, after female powder and binding agent sucrose 0.5%, water are mixed,, sieve through granulation, make 30% pair of careless ether water dispersible granules.Through the check active constituent content is 30%, moisture≤1%, and pH value 7.2, screening (through 325 mesh sieves)>=98%, suspensibility>=80%, lasting foaming characteristic (1min)≤10mL, wetability≤1min, the acceleration heat storage stability is qualified.
This embodiment is used to prevent and treat the rice direct-seeding field weed, in the 1 heart stage dispenser of weeds 3 leaves 1 heart stage to 6 leaf, and usage amount 30～45 grams (active ingredient)/hectare; Convert water spray; Preventive effect is 90～100%, and 20% pair of careless ether wetting powder of contrast medicament adopts with the quadrat method dispenser, and preventive effect is 80～90%.
Claims (8)
1. environment-friendly high-efficiency herbicide for paddy field is characterized in that: herbicidal active component is two careless ethers, and each weight percentages of components is: two careless ethers 5～60%; Wetting agent 1～5%, dispersant 2～8%, synergist 5～30%; Disintegrant 1～10%, binding agent 0.5～2%, surplus is a filler.
2. a kind of environment-friendly high-efficiency herbicide for paddy field according to claim 1 is characterized in that: described wetting agent is one or more the combination in sodium alkyl sulfonate, sodium alkyl benzene sulfonate, sodium alkyl sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol, alkyl phenol polyethenoxy ether sodium sulfate, APES succinic acid monoester sodium sulfonate, AEO succinic acid monoester sodium sulfonate, sulfosuccinic monooctyl ester sodium salt, AEO, APES, the N methyl taurine sodium.
3. a kind of environment-friendly high-efficiency herbicide for paddy field according to claim 1 is characterized in that: described dispersant is one or more the combination in Tea Saponin, lignosulfonates, naphthalenesulfonate formaldehyde condensation compound, alkylnaphthalene sulfonate formaldehyde condensation products, N-methyl-fatty acyl group taurate, APES, APES formaldehyde condensation products sulphate, polymerization of carboxylic acid salt, the macromolecule EO-PO block copolymer.
4. a kind of environment-friendly high-efficiency herbicide for paddy field according to claim 1 is characterized in that: described synergist combines by gathering trisiloxanes, thiophene ketone and potassium dihydrogen phosphate, and the percentage by weight of three's combination is 1:2.5:7.
5. a kind of environment-friendly high-efficiency herbicide for paddy field according to claim 1 is characterized in that: described disintegrant is one or more the combination in sodium sulphate, urea, sodium carboxymethyl starch, starch, pregelatinized starch, sodium carbonate, ammonium sulfate, sodium chloride, calcium chloride, the sucrose.
6. a kind of environment-friendly high-efficiency herbicide for paddy field according to claim 1 is characterized in that: described binding agent is one or more combination of polyethylene glycol, glucose, sucrose, gum Arabic, water soluble starch.
7. a kind of environment-friendly high-efficiency herbicide for paddy field according to claim 1 is characterized in that: described filler is one or more the combination in calcined kaolin, diatomite, precipitated calcium carbonate, white carbon, the bentonite.
8. the preparation method of an environment-friendly high-efficiency herbicide for paddy field, step is following:
A, choose two careless ethers, wetting agent, dispersant, synergist, disintegrant, filler, mixer mixes before adding; After coarse crushing, carry out ultramicro grinding, mix in the mixer after adding again, after detection is qualified, carry out subsequent processing, the defective ultramicro grinding operation of returning is reprocessed;
B, the powder that a step is obtained join in the eddy flow fluidization granulation machine and carry out granulation, binding agent with deionized water dissolving after spraying add, obtain the irregular shape particle of particle diameter wider distribution after granulation finishes, detects qualified discharging afterwards;
C, particle that the b step is obtained obtain finished product through bolting.
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| CN2011103468518A CN102415388A (en) | 2011-11-07 | 2011-11-07 | Environmentally friendly high efficiency paddy field herbicide and preparation method thereof |
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| CN2011103468518A CN102415388A (en) | 2011-11-07 | 2011-11-07 | Environmentally friendly high efficiency paddy field herbicide and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274809A (en) * | 2013-04-27 | 2013-09-04 | 广东中迅农科股份有限公司 | Oxaziclomefone particles |
| CN110402924A (en) * | 2019-07-31 | 2019-11-05 | 淮安市植保植检站 | Transplanted rice field super large age barnyard grass control method |
| CN111034717A (en) * | 2019-12-19 | 2020-04-21 | 安阳全丰生物科技有限公司 | Synergistic method for liquid pesticide preparation and synergist adopted by same |
| CN112471147A (en) * | 2020-11-27 | 2021-03-12 | 南京博臣农化有限公司 | Synergist of bispyribac-sodium pesticide and bispyribac-sodium pesticide preparation |
| CN114920602A (en) * | 2022-06-14 | 2022-08-19 | 江苏剑牌农化股份有限公司 | Preparation method of environment-friendly nutritional wettable powder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4906285A (en) * | 1987-12-22 | 1990-03-06 | Kumiai Chemical Industry Co., Ltd. | Pyrimidine derivatives and herbicidal method and compositions |
| CN1957696A (en) * | 2006-10-20 | 2007-05-09 | 新沂市中港农用化工有限公司 | Water dispersion granules of pesticide, and preparation method |
-
2011
- 2011-11-07 CN CN2011103468518A patent/CN102415388A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4906285A (en) * | 1987-12-22 | 1990-03-06 | Kumiai Chemical Industry Co., Ltd. | Pyrimidine derivatives and herbicidal method and compositions |
| CN1072313A (en) * | 1987-12-22 | 1993-05-26 | 古米埃化学工业株式会社 | Method with pyrimidine derivatives or its herbicidal salt |
| CN1957696A (en) * | 2006-10-20 | 2007-05-09 | 新沂市中港农用化工有限公司 | Water dispersion granules of pesticide, and preparation method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274809A (en) * | 2013-04-27 | 2013-09-04 | 广东中迅农科股份有限公司 | Oxaziclomefone particles |
| CN103274809B (en) * | 2013-04-27 | 2016-05-11 | 广东中迅农科股份有限公司 | Oxazine humulone granule |
| CN110402924A (en) * | 2019-07-31 | 2019-11-05 | 淮安市植保植检站 | Transplanted rice field super large age barnyard grass control method |
| CN111034717A (en) * | 2019-12-19 | 2020-04-21 | 安阳全丰生物科技有限公司 | Synergistic method for liquid pesticide preparation and synergist adopted by same |
| CN111034717B (en) * | 2019-12-19 | 2021-06-08 | 安阳全丰生物科技有限公司 | Synergistic method for liquid pesticide preparation and synergist adopted by same |
| CN112471147A (en) * | 2020-11-27 | 2021-03-12 | 南京博臣农化有限公司 | Synergist of bispyribac-sodium pesticide and bispyribac-sodium pesticide preparation |
| CN114920602A (en) * | 2022-06-14 | 2022-08-19 | 江苏剑牌农化股份有限公司 | Preparation method of environment-friendly nutritional wettable powder |
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Application publication date: 20120418 |