CN105076199A - Weeding composition and preparation method thereof - Google Patents
Weeding composition and preparation method thereof Download PDFInfo
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- CN105076199A CN105076199A CN201510540730.5A CN201510540730A CN105076199A CN 105076199 A CN105076199 A CN 105076199A CN 201510540730 A CN201510540730 A CN 201510540730A CN 105076199 A CN105076199 A CN 105076199A
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Abstract
The invention relates to a weeding composition and a preparation method thereof. The weeding composition consists of the following formulation constituents in percentage by weight: 30 to 80 percent of effective constituents, 7 to 25 percent of surface active agent, 3 to 8 percent of another annexing agent and 7 to 48 percent of water, wherein the effective constituents are a mixture of glufosinate-ammonium and glyphosate of which the weight ratio is 1 to (2.5 to 3.5), the another annexing agent is an anti-freezing agent or filler. Through improvement of the weeding composition, the controlling spectrum is expanded, the pesticide effect is improved, the lasting period is prolonged, the production of resistance to pesticide is postponed, and the weeding composition is safe to succession crops; moreover, the processing technology is simple and convenient, and the cost is low.
Description
Technical field
The invention belongs to agrochemical applications field, be specifically related to a kind of Herbicidal combinations and preparation method thereof.
Background technology
Two kinds of combinations of herbicides of different ratio, performance complement can be played drug effect better, be embodied in: (1) expanding prevention is composed, often kind of agricultural chemicals can prevent and treat one or more pests, can the kind of expanding prevention after composite, reduces times for spraying; (2) increase preventive effect, have composite through science of some agricultural chemicals, can preventive effect be provided, be alone several times, the usage amount of agricultural chemicals can be reduced like this; (3) reduce the generation of resistance, a kind of agricultural chemicals uses for a long time and is easy to develop immunity to drugs, the composite product effectively can alleviating resistance.So mixture of herbicides has become the important directions of current pesticide field technological development.
Grass ammonium phosphine chemical name is 2-amino-4-[hydroxyl (methyl) phosphono] butyric acid ammonium, molecular formula: C
5h
15n
2o
4p, belongs to phosphonic acid based weed killer herbicide, glutamine synthetase inhibitor, non-selective contact weedicide.Grass ammonium phosphine has certain systemic action, can be used for orchard, vineyard, uncultivated area weeding, also annual or perennial dicotyledonous and grassy weed and nutgrass flatsedge etc. is prevented and kill off with can be used for potato, as mouse tail amur foxtail, lady's-grass, barnyard grass, green foxtail, wild wheat, wild corn, orchardgrass, fescue grass etc.Grass ammonium phosphine usage amount regards as thing, weeds and different, and per hectare usage amount 1 ~ 2kg or more is a little, and as prevented and kill off raspberry and the fern crop of forest and alpine pasture, usage amount is 1.5 ~ 20kg/hm
2.
Glyphosate chemical name is N-(phosphine carboxymerhyl)-glycine ammonium salt, belongs to a kind of organophosphorus herbicide, is low toxicity herbicide.There is systemic action, broad weed-killing spectrum, the plant of the sections more than 40 such as unifacial leaf and dicotyledonous, annual and perennial, herbs and shrubs can be prevented and kill off.Very strong to the underground organization destructive power of perennial dark root weeds, general agricultural machinery can be reached and to be beyond one's reach the degree of depth.Be applicable to sugarcane, tea, mulberry, sisal hemp, rubber, forest, orchard carry out total weed control.It is a kind of non-selective inner sucting conduction type cauline leaf process weed killer herbicide, and early 1970s is developed by Monsanto Company, is generally made into isopropyl amine salt, sodium salt, sylvite and ammonium salt when usually using.Its isopropyl amine salt is the active component of famous weed killer herbicide trade mark " Roundup ".Former medicine is white or micro-yellow crystalline powder, and fusing point is 232 ~ 236 DEG C (decomposition), soluble in water, acetone, chlorobenzene, ethanol, kerosene and dimethylbenzene.This product is by dissolving the leaf branch stem surface wax coat of weeds, and drug effect enters rapidly plant conducting system generation effect, makes weeds exhausted dead.
Different weed killer herbicide biologically active is different, and herbicide ability has his own strong points, and some kind is applicable to composite use, can play good complementary synergistic effect.About glyphosate and careless ammonium phosphine mixture study general based on these points: (1) glyphosate is the chronic wide spectrum steriland herbicide of inner sucting conduction type, and careless ammonium phosphine is contact killing type weed killer herbicide.Both types of compounds, the mechanism of action are different, composite possible in theory.(2) glyphosate and careless ammonium phosphine composite can improve control of weeds effect, expand herbicide spectrum, make up the deficiency that glyphosate is composed in herbicide, as effective in eleusine indica, Horseweed Herb etc. to the part malignant weed of tolerate glyphosate.(3) careless ammonium phosphine excellent performance, but expensive, and at present, Glufosinate-ammonium price is about 10 times of glyphosate price, and its output can't be met the need of market, and both mixtures can reduce drug cost.(4) glyphosate needs just can play a role in Uptake and translocation to weeds body, and comparatively slow in weeding speed, manifest symptom appears in general about 7d, and when temperature is low, speed of action is slower; And careless ammonium phosphine belongs to contact killing type, weeding speed is fast, and manifest symptom appears in general about 2 ~ 3d, and temperature influence is less, and therefore, both mixtures improve weeding speed, meet traditional in-mind anticipation of agricultural producer.
Application publication number is CN103719077A, Shen Qing Publication day is a kind of amino acids of water baseization for low-gallonage spraying weed killer herbicide of 2014-4-16, this weed killer herbicide is made up of herbicide active active ingredients, surfactant, humectant, drift control agents and water, herbicide active active ingredients is one or more the combination in careless ammonium phosphine, careless ammonium phosphine-P sodium salt, glyphosate, ammonium glyphosate, glyphosate dimethylamine salt, glyphosate potassium, glyphosate isopropyl amine salt, and disclose glyphosate in specification: when careless ammonium phosphine is 5 ~ 20:1, synergy is especially remarkable.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of significant herbicidal composition of preventive effect to annual and perennial grass family, broad leaved weed and preparation method thereof.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of Herbicidal combinations, by weight percentage, it is made up of following recipe ingredient: the active ingredient of 30% ~ 80%, the surfactant of 7% ~ 25%, other additives of 3% ~ 8%, the water of 7% ~ 48%, wherein, described active ingredient is weight ratio is the careless ammonium phosphine of 1:2.5 ~ 3.5 and the mixture of glyphosate, and other described additives are antifreezing agent or filler.
Preferably, described careless ammonium phosphine and the weight ratio of described glyphosate are 1:3.
Preferably, described glyphosate is glyphosate isopropyl amine salt.
Preferably, described surfactant is APG and/or polycarboxylate surfactant.
Preferably, described antifreezing agent is glycerine, and described filler is kaolin.
Preferably, described Herbicidal combinations is soluble liquid or soluble granula.
Further preferably, when described Herbicidal combinations is soluble liquid, by weight percentage, it is made up of following recipe ingredient: the active ingredient of 30% ~ 40%, the surfactant of 18% ~ 24%, other additives of 4% ~ 6%, the water of 30% ~ 48%, wherein, described surfactant is APG, and other described additives are antifreezing agent.
Further preferably, when described Herbicidal combinations is soluble granula, by weight percentage, it is made up of following recipe ingredient: the active ingredient of 75% ~ 80%, the surfactant of 7.5% ~ 8%, other additives of 3% ~ 8%, the water of 7% ~ 9%, wherein, described surfactant is polycarboxylate surfactant, and other described additives are filler.
Wherein, described careless ammonium phosphine is purchased from Jiangsu Qizhou Green Chemical Co., Ltd, described glyphosate isopropyl amine salt is purchased from Lv Ba chemical inc, Shandong, described APG is purchased from Shanghai Fakai Chemical Co., Ltd., described polycarboxylate surfactant is purchased from the calm and peaceful water treatment Science and Technology Co., Ltd. in Shandong, described glycerine is purchased from Shanghai Fu Sheng Industrial Co., Ltd., and described kaolin grinds Industrial Co., Ltd. purchased from upper sea valley.
Preferably, described water is deionized water.
A kind of preparation method of described Herbicidal combinations, the stirring and dissolving at 55 DEG C ~ 65 DEG C by described active ingredient and described water, then add described surfactant and other described additives, stir the Herbicidal combinations obtained as soluble liquid.
A kind of preparation method of described Herbicidal combinations, by described active ingredient, described surfactant and other described additive stirring and evenly mixings, then after airslide disintegrating mill is pulverized, add described water, carry out kneading 15 ~ 25 minutes, after granulation, at 55 DEG C ~ 65 DEG C, carry out the Herbicidal combinations that drying obtains as soluble granula.
Owing to adopting above technical scheme, the present invention compared with prior art tool has the following advantages:
The present invention is by the improvement to Herbicidal combinations, and Herbicidal combinations expanding prevention can be composed, improves drug effect, and extend the lasting period, delay pesticide resistance and produce, to succession crop safety, and production and processing technology is simple and easy to do, and cost is low.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is further described, but the present invention should not be limited to these embodiments, below described content be mass content.
Embodiment one
Grass ammonium phosphine and glyphosate isopropyl amine salt mixture are reported weeds active determination test
Test objective: measure careless ammonium phosphine and glyphosate isopropyl amine salt mixture to the herbicidal effect of target weeds under greenhouse pot culture condition, and evaluate its synergy.
For examination target: grassy weed-green foxtail
Test method: adopt pot-culture method cauline leaf process (NY/T1155.4-2006): at high 10cm, the flowerpot dress soil decided at the higher level but not officially announced of diameter 10cm, will for the sowing of examination target weed seed 15-20 grain, hot-house culture is put after the fine earth that lid 0.5 ~ 1cm is thick, treat that weeds grow to the 2-4 leaf phase and carry out cauline leaf spraying process, often spray spraying 12mL, repeats 4 times, sets up blank.Process is placed in greenhouse and cultivates, the growing state of routine observation target weeds, 15d measurement target drone damage symptoms and the situation of suppression, and claims acrial part fresh weight or strain fresh weight, suppresses fresh weight rate to evaluate medicament to the toxicity action of target weeds.
Fresh weight inhibition P (%)=(contrast fresh weight-process fresh weight)/contrast fresh weight × 100
Synergy is evaluated and is evaluated weed killer herbicide synergy method (NY/T1155.7-2006) according to Gowing method,
Its formula is: E0=X+Y-XY/100
X is that careless ammonium phosphine is to weeds inhibiting rate; Y is that glyphosate isopropyl amine salt is to weeds inhibiting rate; E0 be the two mixture to the fresh weight inhibition theoretical value of target weeds, E is the fresh weight inhibition measured value of the two mixing to target weeds.
Evaluation criterion: when E-E0>10% is synergistic effect, be expressed as summation action as-10%<E-E0<10%, E-E0<-10% is expressed as antagonism.
Grass ammonium phosphine and glyphosate isopropyl amine salt mixture to grassy weed-green foxtail determination of activity result see table 1.
Table 1
As shown in Table 1, careless ammonium phosphine and glyphosate isopropyl amine salt are used alone, and only have and effectively could suppress weed growth at high doses.After composite, under different compound proportion, indoor pot drug effect is all significantly improved.
Embodiment two
Embodiment 1-9 is soluble liquid, and its recipe ingredient (following content all rolls over hundred) is see table 2.
Table 2
Collocation method is:
First according to the good required inventory of the stoichiometry of table 1, add water, active ingredient successively, be warming up to 60 DEG C of insulated and stirred and dissolve completely to active ingredient, add surfactant and antifreezing agent, stir.
Embodiment 10-18 is soluble granula, and its recipe ingredient (following content all rolls over hundred) is see table 3.
Table 3
Collocation method is:
First according to the good required inventory of table 3 stoichiometry, add successively former medicine, wetting and dispersing and, filler, stirring and evenly mixing, pulverizes through airslide disintegrating mill, adds 7%-9% water, mediate 20 minutes, granulation 60 DEG C of dryings.
Embodiment three
Grass ammonium phosphine and glyphosate isopropyl amine salt biocontrol of mango garden weeds field control effectiveness test
Pesticide control: careless ammonium phosphine and glyphosate isopropyl amine salt different ratio complex agent type, is specifically shown in embodiment two.
Contrast medicament 18% careless ammonium phosphine aqua (commercial), 41% glyphosate isopropylamine salt water solution.
Using method: every mu of ground is watered 35 liters of even spraying in each community.
Spraying time: in the weeds in field 1-4 leaf phase, carries out cauline leaf and sprays 1 time.
Investigation method and drug effect calculate
Respondent is annual and perennial grass family, broad leaved weed, 10 days, the 30 days strain preventive effects to weeds after medicine.
Preventive effect (%)=[clear water control group weeds strain number/fresh weight (strain/gram)-processed group weeds strain number/fresh weight (strain/gram)]/clear water control group weeds strain number/fresh weight (strain/gram).
Investigation result is see table 4.
Table 4
As shown in Table 4, careless ammonium phosphine and the composite different embodiment of glyphosate isopropyl amine salt are compared with contrast medicament, and field is improved annual and perennial weed drug effect, and the drug effect of its medium-height grass ammonium phosphine and glyphosate isopropyl amine salt compound proportion 1:3 significantly improves.
Above-described embodiment is just for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. a Herbicidal combinations, it is characterized in that: by weight percentage, it is made up of following recipe ingredient: the active ingredient of 30% ~ 80%, the surfactant of 7% ~ 25%, other additives of 3% ~ 8%, the water of 7% ~ 48%, wherein, described active ingredient is weight ratio is the careless ammonium phosphine of 1:2.5 ~ 3.5 and the mixture of glyphosate, and other described additives are antifreezing agent or filler.
2. Herbicidal combinations according to claim 1, is characterized in that: described careless ammonium phosphine and the weight ratio of described glyphosate are 1:3.
3. Herbicidal combinations according to claim 1, is characterized in that: described glyphosate is glyphosate isopropyl amine salt.
4. Herbicidal combinations according to claim 1, is characterized in that: described surfactant is APG and/or polycarboxylate surfactant.
5. Herbicidal combinations according to claim 1, is characterized in that: described antifreezing agent is glycerine, and described filler is kaolin.
6. Herbicidal combinations according to claim 1, is characterized in that: described Herbicidal combinations is soluble liquid or soluble granula.
7. Herbicidal combinations according to claim 6, it is characterized in that: when described Herbicidal combinations is soluble liquid, by weight percentage, it is made up of following recipe ingredient: the active ingredient of 30% ~ 40%, the surfactant of 18% ~ 24%, other additives of 4% ~ 6%, the water of 30% ~ 48%, wherein, described surfactant is APG, and other described additives are antifreezing agent.
8. Herbicidal combinations according to claim 6, it is characterized in that: when described Herbicidal combinations is soluble granula, by weight percentage, it is made up of following recipe ingredient: the active ingredient of 75% ~ 80%, the surfactant of 7.5% ~ 8%, other additives of 3% ~ 8%, the water of 7% ~ 9%, wherein, described surfactant is polycarboxylate surfactant, and other described additives are filler.
9. the preparation method of the Herbicidal combinations according to any one of claim 1 to 7, it is characterized in that: the stirring and dissolving at 55 DEG C ~ 65 DEG C by described active ingredient and described water, then add described surfactant and other described additives, stir the Herbicidal combinations obtained as soluble liquid.
10. the preparation method of the Herbicidal combinations according to any one of claim 1 to 6,8, it is characterized in that: by described active ingredient, described surfactant and other described additive stirring and evenly mixings, then after airslide disintegrating mill is pulverized, add described water, carry out kneading 15 ~ 25 minutes, after granulation, at 55 DEG C ~ 65 DEG C, carry out the Herbicidal combinations that drying obtains as soluble granula.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2016101700B4 (en) * | 2016-07-19 | 2017-06-01 | Shandong Weifang Rainbow Chemical Co., Ltd. | Water soluble granule of glufosinate-ammonium |
| CN107581201A (en) * | 2017-10-13 | 2018-01-16 | 南宁泰达丰生物科技有限公司 | A kind of herbicidal composition of glyphosate and glufosinate-ammonium compounding |
| CN108684704A (en) * | 2018-07-09 | 2018-10-23 | 南开大学 | A kind of ammonium glyphosate builder composition and its application |
| WO2019030102A1 (en) * | 2017-08-09 | 2019-02-14 | Basf Se | Herbicidal mixtures comprising l-glufosinate or its salt and glyphosate or its salts |
| CN111165509A (en) * | 2020-01-14 | 2020-05-19 | 安徽远景作物保护有限公司 | Composition and method for preventing and removing non-cultivated land weeds |
| CN111226975A (en) * | 2020-03-18 | 2020-06-05 | 华南农业大学 | Gibberellin-containing mikania micrantha control agent and application thereof |
| CN111226974A (en) * | 2020-01-16 | 2020-06-05 | 安徽远景作物保护有限公司 | Composition and method for preventing and removing non-cultivated land weeds |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111165509A (en) * | 2020-01-14 | 2020-05-19 | 安徽远景作物保护有限公司 | Composition and method for preventing and removing non-cultivated land weeds |
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| CN111226975A (en) * | 2020-03-18 | 2020-06-05 | 华南农业大学 | Gibberellin-containing mikania micrantha control agent and application thereof |
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