CN1168386C - Compound berbicide - Google Patents

Compound berbicide Download PDF

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Publication number
CN1168386C
CN1168386C CNB981023983A CN98102398A CN1168386C CN 1168386 C CN1168386 C CN 1168386C CN B981023983 A CNB981023983 A CN B981023983A CN 98102398 A CN98102398 A CN 98102398A CN 1168386 C CN1168386 C CN 1168386C
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China
Prior art keywords
atrazine
present
weed killers
precious
grass
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CNB981023983A
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Chinese (zh)
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CN1202315A (en
Inventor
李正先
肖富生
魏镇
王海东
刘爱红
刘玉玖
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Hebei Xuanhua Yi'a Pesticides Co., Ltd.
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XUANHUA PESTICIDE FACTORY ZHANGJIAKOU CITY
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Priority claimed from CN98100247A external-priority patent/CN1187298A/en
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Priority to CNB981023983A priority Critical patent/CN1168386C/en
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Abstract

The present invention relates to a production method for composite weed killers and belongs to the processing field of agricultural chemical. The composite weed killers of the present invention comprise triazine weed killers and sulfonylurea weed killers, wherein the triazine weed killers of the present invention can be terbutylazine, atrazine, simazine and other triazine weed killers; the sulfonylurea weed killers of the present invention can be thifensulfuron(Harmony), Titus(rimsulfuron DPX-Z9636)and other sulfonylurea weed killers. Tests prove that the weed killers provided by the present invention has the characteristics of moderate residue period, broad weeding spectrum and low weeding cost per mu.

Description

A kind of compound herbicide
The invention belongs to pesticide field, specifically triazine and sulfonylurea herbicide composition.
Along with China's agricultural development, the extensive use of chemical herbicide, great changes have taken place in original weed community.Main weeds originally becomes less important weeds, and relative less important weeds rise to main weeds, so just requires the manufacturing enterprise of agricultural chemicals to produce and meets the weed killer herbicide that present control of weeds requires.The medicament of Ying Yonging has atrazine, Yu Nongle, gram not to have track etc. in the market, but because all there are some problems in they in application time and medicament price, so need a kind ofly both can handle by cauline leaf especially on the market, again can soil treatment and the low weed killer herbicide of price.
The objective of the invention is to practical problem, proposed a kind of new herbicidal composition at weed killer herbicide supply and demand in the agricultural production of present China.
Compound herbicide of the present invention contains triazine herbicide and sulfonylurea herbicide.The triazine herbicide of indication of the present invention can be bladex, atrazine (atrazine ATRAZINE), Garagard, Simanex and other triazine herbicide.The sulfonylurea herbicide of indication of the present invention can be thifensulfuron methyl (the precious receipts), precious one-tenth (rimsulfuron DPX--Z9636) and other sulfonylurea herbicide.Furtherly, compound herbicide of the present invention includes atrazine (atrazine ATRAZINE) and becomes (DPX--Z9636) with precious; Furtherly, compound herbicide of the present invention includes the atrazine of 0.1-99% and the treasured of 0.1-99% becomes.
Compound herbicide of the present invention can also be mixed with into preparation or primary and secondary packaged form with other agricultural chemicals such as weed killer herbicide, insecticide, bactericide and safener, fertilizer, growth regulator.
Utilize the said weed killer herbicide of the invention described above, be equipped with the known auxiliary agent of those skilled in that art (comprising solvent (filler) synergist etc.), can be made into the compound herbicide of the multiple formulation of the present invention.The precious content range that becomes is 0.1-99% in the formulation, and the content range of atrazine is 0.1-99%, and atrazine is with precious become can arbitrary proportion composite (precious one-tenth 0.1-99%+ atrazine 0.1-99%).
The formulation that may process is: a: wetting powder (WP)
B: dry suspending agent (DF)
C: missible oil (EC)
D: aqueous suspension agent
E: oily suspended emulsion (OF)
F: pulvis (DP)
A: wetting powder is can homodisperse preparation in water.Wetting powder of the present invention except adding just like thinners such as white carbon black, precipitated calcium carbonate, potter's clay, diatomite or the inert substance; It also contains ionic or nonionic surface active agent (wetting agent, dispersant), for example, fatty alcohol polyglycol ether sulphate, fatty acid amide N methyl taurine sodium salt, sodium sulfate of polyethenoxy ether of fatty alcohol, alkylphenol polyoxyethylene sulphate, alkylphenol polyoxyethylene, neopelex--calcium, sodium lignin sulfonate--calcium, one or more materials among the SP0A etc., content are 0.1-30%; Also include penetrant t, beneficial agricultural powder, one or more materials among the azone, content are 0.1-30%, make wetting powder through grinding and processing.
B: dry suspending agent is with former the effective elements of the medicine, wetting agent, disintegrant, dispersant and adhesive, by forming with the water mixing granulation.Be used for wetting agent of the present invention and can be among the anionic surfactant such as sodium alkyl sulfate, sodium alkyl benzene sulfonate and benzene sulfonic acid sodium salt one or more, its consumption is 0.1-10%.Be used for disintegrant of the present invention and can be among starch and derivative, alginic acid and salt and the clay etc. one or more, consumption is 0.1-20%.Be used for formaldehyde condensation products that dispersant of the present invention and adhesive are lignosulfonates, alkylbenzenesulfonate, alkylnaphthalene sulfonate and one or more goods and materials among the polycarboxylic acid surfactant.Common consumption 5-30%.
C: missible oil is by active ingredient is dissolved in one or more organic solvents.Being used for solvent of the present invention can be pentane, ether, methyl alcohol, ethyl acetate, chloroform, chloromethanes, dimethyl sulfoxide (DMSO), dimethylbenzene, one or more compositions among the toluene etc.; Be used for emulsifier of the present invention and be one or more materials among fatty alcohol polyglycol ether sulphate, fatty acid amide N methyl taurine sodium salt, the sodium sulfate of polyethenoxy ether of fatty alcohol; usually consumption is 0.1-30%; the present invention also includes penetrant t; common consumption 0.1-10%; benefit farming oil; azone, consumption 0.1-20% usually.
D: aqueous suspension agent is after precious Cheng Yuke La Tejin is passed through to add synergist, auxiliary agent, the preparation that process ball milling, sand milling are made.Auxiliary agent of the present invention can be one or more materials among fatty alcohol polyglycol ether sulphate, fatty acid amide N-methyl ox acid iodide sodium salt, sodium sulfate of polyethenoxy ether of fatty alcohol, alkylphenol polyoxyethylene sulphate, alkylphenol polyoxyethylene, the triphen ethyl-phenol polyoxyethylene, usually consumption 0.1-30%; The present invention also contains penetrant t, usually consumption 0.1-10%; Ethylene glycol, consumption 0.1-10% usually; CMC, consumption 0.1-10% usually; Xanthans, 0.1-10%; Tributyl phosphate, 0.1-20%.
E: finish is made by former medicine, surfactant adding mineral oil or vegetable oil.Surfactant of the present invention comprises dioctyl phthalate, alcohol, fatty acid, the liquid ester class of alicyclic ring alcohol, as repefral, butyl ester, diisobutyl ester, two laruyl alcohol esters, two cyclic esters, two cyclohexanols and two ring monooctyl esters etc., also available C6-C10 carboxylic acid such as positive acetate, capric acid, n-nonanoic acid, benzoic acid and ester are as benzylacetic acid ester, ethyl acetate, ethyl pelargonate, methyl benzoate or ethyl ester etc., consumption 0.1-30% usually.Can be as emulsifier: fatty alcohol polyglycol ether sulphate, fatty acid amide N methyl taurine sodium salt, sodium sulfate of polyethenoxy ether of fatty alcohol; alkylphenol polyoxyethylene sulphate, alkylphenol polyoxyethylene, sodium alkyl benzene sulfonate-; the calcium lignin sodium sulfonate-, the common consumption 0.1-30% of calcium.
F: pulvis is by with active ingredient and finely divided property solid matter such as talcum, and natural clay such as kaolin, nation's soil, precipitated calcium carbonate and pyrophyllite or diatomite, white carbon black grind together to be made, and supplies 100%.
The optimum ratio of compound herbicide of the present invention is (percentage by weight):
Atrazine: 1-80%;
Precious one-tenth: 0.2-90%;
Auxiliary agent is OP-10 0,201 0203, farming breast 500 1,600 16,011,602 2,201 0208, neopelex--calcium, sodium lignin sulfonate--any one or multiple composition: the 1-15% among calcium, the SOPA.
Synergist is penetrant t, beneficial agricultural bleeding agent A, B, C, any one in the azone or multiple material: 1-10%;
Filler is any one or multiple material: the 0.5-50% in CMC, xanthans, white carbon, potter's clay, the diatomite;
Stabilizing agent is any one or multiple material: the 0.1-10% in tributyl phosphate, sodium bicarbonate, the boric acid.
Take by weighing each component according to said ratio, can be made into wetting powder through grinding and processing.
The optimum formula of compound herbicide of the present invention is:
Ten dialkyl benzene sulfonic acid sodium salt 1-3
Sodium lignin sulfonate 2-4
SOP A 1-3
Potter's clay 24-30
Penetrant t 8-12
White carbon 4-8
The former powder 40-60 of atrazine
Precious one-tenth 0.5-2.5
Tributyl phosphate 0.5-2
Weed killer herbicide of the present invention has been compared following advantage than prior art:
1, the longevity of residure is moderate
Solve corn field owing to use single variety to make weed community change for many years, caused herbicide effects to descend and ground such as North China cause drug injury problem to second stubble crop winter wheat because of using long weed killer herbicide of the longevity of residure.
2, broad weed-killing spectrum.
Because the present invention is composite weed killer herbicide, thereby enlarged original grass spectrum of killing, it all has good preventive effect to grass family and broad leaved weed.
3, mu weeding cost reduces.
4, synergistic effect is remarkable: see embodiment 9.
Below narrate embodiments of the invention:
Embodiment 1 embodiment 2 embodiment 3 embodiment 4
Ten dialkyl benzene sulfonic acid sodium salts 2132
Sodium lignin sulfonate 312 0.5
SOPA 2 1 1 0.5
Potter's clay 26 45 1 0.9
Penetrant t 10 551
Hard charcoal 64 0.8 4
The former powder 49 18 80 1 of atrazine
Precious one-tenth 1 20 0.2 90
Carbonic acid tributyl 157 0.1
Embodiment 5 embodiment 6 embodiment 7 embodiment 8
Ten dialkyl benzene sulfonic acid calcium 2132
Sodium lignin sulfonate 312 0.5
Farming breast 1,600 211 0.5
Diatomite 26 45 1 0.9
Azone 10 551
Xanthans 64 0.8 4
The former powder 49 18 80 1 of atrazine
Precious one-tenth 1 20 0.2 90
Sodium bicarbonate 157 0.1
Take by weighing each amount of substance according to the foregoing description,, can make the wetting powder of different content of the present invention with the method that those skilled in that art know.The embodiment of other formulation of the present invention does not enumerate one by one at this.
Table 1 the present invention 50% wetting powder control corn field of summer weeds effects (Shandong)
Handle behind the medicine 30 days total preventive effects behind 14 days total preventive effect seedlings
(mu consumption) total strain numbers of the total strain numbers of weeds (%) weeds (%)
Medicament 100g 123 82.3 135 84.6 of the present invention
Precious one-tenth 4g 345 50.3 373 57.5
Atrazine 120g 200 71.2 229 73.9
Contrast 694-877-
Table 2 the present invention 50% wetting powder field efficiency test
45 days heavy fresh weights of the bright grass of preventive effect subtract after handling the preceding number of weeds seedling of medicine
Move back rate
(mu consumption ((strain/m 2) weeds strain number (strain/m 2) (%) (g/m 2) %
Medicament 100g 97 2 97.9 20 98.7 of the present invention
50% precious one-tenth 4g 105 34 67.6 512 66.4
38% atrazine 76 57 25.0 492 67.8
CK 114 137 -20.2 1526 -
Table 3 the present invention 50% wetting powder fresh weight effect (corn)
Figure C9810239800071
Embodiment 9: compound herbicide synergistic effect research
Atrazine belongs to triazine herbicide, can prevent and kill off broadleaf weed by postemergence application before seedling, simultaneously broadleaf weed is also had certain preventive effect, but this medicine residual life is long, and single administration easily causes down the poisoning of stubble wheat; Precious one-tenth is sulfonylurea herbicide, and efficient to the most of single broadleaf weeds of corn field at postemergence application, this medicine is an inhibitor of acetolactate synthetase, and site of action is single, uses easily separately and develops immunity to drugs.For clear and definite precious one-tenth and atrazine synergy mode, provide scientific basis for rationally using these two kinds of medicaments with, do following experiment:
Material and method
(1) medicament
25% precious one-tenth dry suspending agent Xuanhua insecticide factory provides
40% atrazine suspending agent Xuanhua insecticide factory produces
(2) for the examination weeds: lady's-grass (Digitaria sanguinalis), and a branch amaranth (Amaranthus rottoflexus) were collected in the Beijing area in 96 years.
(3) precious one-tenth+atrazine is used the evaluation of pesticide effectiveness and the synergy evaluation to weeds with
Tested in the 9-10 month in 1997 and carry out in the China Agricultural University greenhouse, test establish two single agent different with four to five use proportioning with, each chemicals treatment is established 5 concentration, repeats for 4 times, experimental scheme is that completely random is arranged, with the little plastic cup of diameter 7cm pack into 90 the gram soil, broadcast 50 of Amaranthus retroflexus for every glass, 100 of lady's-grass, seed level 0.5cm, keep ground moistening during whole test, after planting 3 weeks were sprayed medicine, 12 days investigation weeds overground part fresh weights after the dispenser.By the concentration logarithm--the effective dose (ED90) of two single agent and each mixture inhibition Amaranthus retroflexus and lady's-grass growth 90% is obtained in the linear regression of inhibiting rate probit value, simulates ED90 isoeffect curve figure with calculator.(Additive DoseModel ADM) estimates the synergy of using with between each medicament to adopt the dosage additive model.Can reflect the enhancing of the drug effect that is produced when mixture uses separately with respect to single agent or weaken, this degree is represented with synergy index K.As illustrated in fig. 1 and 2, K=ON/OM.When＜1, the expression antagonism; When K=1, expression addition, synergy multiple=K-1.
Result and analysis:
1, precious one-tenth and atrazine list activity to lady's-grass and Amaranthus retroflexus
Precious Cheng Danyong is respectively the reaction probit value (y) and dosage logarithm (x) the toxicity regression formula of the Amaranthus retroflexus of lady's-grass and Amaranthus retroflexus:
Lady's-grass: y=2.89+0.91x{x=log (dosage), mg/ mu };
Amaranthus retroflexus: y=18.34+4.7x{x=log (dosage) x (100), mg/ mu }.
Fig. 1 atrazine and the precious ED90 equivalent line that becomes to do mutually to lady's-grass
Fig. 2 atrazine and the precious ED90 equivalent line that becomes to do mutually to Amaranthus retroflexus
The atrazine list is used the reaction probit value (y) of lady's-grass and Amaranthus retroflexus and dosage logarithm (x) toxicity regression formula is respectively:
Lady's-grass: y=1.97+1.34x{x=log (dosage), mg/ mu };
Amaranthus retroflexus: y=2.58+0.88x{x=log (dosage) x (100), mg/ mu }.
According to top toxicity regression formula, the ED90 that calculates precious lady's-grass in pairs and Amaranthus retroflexus is respectively 5.39 and 1.74g/ mu, atrazine is to the ED90 difference 1659 and the 15.76g/ mu of lady's-grass and Amaranthus retroflexus, this result shows that the post processing of precious one-tenth seedling all has high activity to lady's-grass and Amaranthus retroflexus, and the post processing of atrazine seedling is then very low to the activity of lady's-grass to the active height of Amaranthus retroflexus.
2, the synergy of precious one-tenth and atrazine
Precious one-tenth and atrazine are used with lady's-grass and mutual ED90 equivalent line such as the Fig. 1,2 that does of Amaranthus retroflexus, can find out precious to become and atrazine is used with lady's-grass and Amaranthus retroflexus are all had obvious synergistic effect from Fig. 1,2, atrazine and the precious synergy index K=ON/OM=5.4/3.7=1.46 of lady's-grass in pairs, maximum synergy multiple=K-1=1.46-1=0.46 (Fig. 1), atrazine and the precious synergy index K=ON/OM=5.1/2.7=1.89 of Amaranthus retroflexus in pairs, maximum synergy multiple=K-1=1.89-1=0.89 (Fig. 2).
Atrazine and precious the best of lady's-grass are in pairs used ratio with and are far longer than the best of Amaranthus retroflexus is used with ratio, can find out also that from Fig. 1,2 atrazine becomes to use with in very big proportion with treasured lady's-grass and Amaranthus retroflexus are all had synergistic effect.
The above results shows that precious one-tenth and atrazine are used with all has obvious synergistic effect to grass family and broad leaved weed, and has the mixing ratio of synergistic effect wide.Usual amounts 0.1-20%.

Claims (3)

1, a kind of Herbicidal combinations is characterized in that this Herbicidal combinations contains the atrazine of 18-80% and the rimsulfuron 25 of 0.2-20% by weight percentage.
2, Herbicidal combinations according to claim 1 is characterized in that the proportioning of the wetting powder of described Herbicidal combinations is by weight percentage:
Atrazine: 18-80%;
Rimsulfuron 25: 0.2-20%;
Auxiliary agent is OP-10,0201,0203; Farming breast 500,1600,1601,1602,2201,0208, the basic sodium sulfonate of dodecane--calcium, sodium lignin sulfonate--any one or multiple material: the 1-15% among calcium, the SOPA;
Synergist is any one or multiple material: the 1-10% in penetrant t, the azone;
Filler is any one or multiple material: the 0.5-50% in CMC, xanthans, white carbon black, potter's clay, the diatomite;
Stabilizing agent is any one or multiple material: the 0.1-10% in tributyl phosphate, sodium bicarbonate, the boric acid.
3, Herbicidal combinations according to claim 1 is characterized in that the prescription of described wetting powder is by weight percentage:
Neopelex 2
Sodium lignin sulfonate 3
SOPA 2
Potter's clay 26
Bleeding agent 10
White carbon black 6
The former powder 49 of atrazine
Rimsulfuron 25 1
Tributyl phosphate 1
CNB981023983A 1998-01-19 1998-06-16 Compound berbicide Expired - Fee Related CN1168386C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB981023983A CN1168386C (en) 1998-01-19 1998-06-16 Compound berbicide

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN98100247 1998-01-19
CN98100247.7 1998-01-19
CN98100247A CN1187298A (en) 1998-01-19 1998-01-19 Compound herbicide
CNB981023983A CN1168386C (en) 1998-01-19 1998-06-16 Compound berbicide

Publications (2)

Publication Number Publication Date
CN1202315A CN1202315A (en) 1998-12-23
CN1168386C true CN1168386C (en) 2004-09-29

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