CN104255764B - A kind of cotton field stem leaf process herbicidal composition and application - Google Patents
A kind of cotton field stem leaf process herbicidal composition and application Download PDFInfo
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- CN104255764B CN104255764B CN201410462721.4A CN201410462721A CN104255764B CN 104255764 B CN104255764 B CN 104255764B CN 201410462721 A CN201410462721 A CN 201410462721A CN 104255764 B CN104255764 B CN 104255764B
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Abstract
The invention belongs to herbicide technology field, specifically disclose a kind of cotton field stem leaf process herbicidal composition, also disclose its application simultaneously. Described herbicidal composition is obtained by activeconstituents and auxiliary material mixture, and the weight ratio that activeconstituents is trifloxysulfuron and sethoxydim, trifloxysulfuron and sethoxydim is: trifloxysulfuron sethoxydim=1 (10-80). Cotton field of the present invention stem leaf process herbicidal composition herbicidal effect is good, broad weed-killing spectrum, the preventive effect to cotton field weed can be improved greatly, the gramineous weeds, broadleaf weeds and the sedge weed that are mainly occurred in cotton field all have significant preventive effect, using dosage is little, decreases the degree to environmental influence; Effectively delay the emergence and development of weeds resistance, extend the work-ing life of medicament; Herbicidal composition is fixed in cotton leaf after being absorbed by cotton plants and can not move, and can by rapid metabolization, so cotton being had extremely high security.
Description
Technical field
The present invention relates to herbicide technology field, it is specifically related to a kind of cotton field stem leaf process herbicidal composition, also relates to its application simultaneously.
Background technology
Cotton is the main cash crop of China, and long-term cultivated area is more than 5,000,000 hm2, account for the 26% of the cash crop total area, it be key pillars of the national economy industries. Weed in cotton field because of the water that wins honour for cotton, strives, strive the reason such as nutrient, parasitic multiple disease and pest, seriously have impact on the normal growth of cotton, cause the gined cotton underproduction about 250,000 tons throughout the year, endangering the serious underproduction up to 60%, therefore effectively controlling cotton field weed is one of important measures improving output of cotton and quality. Show according to cotton field weed investigation result, weed in cotton field mainly contains 24 sections about more than 60 and plants, wherein the lady's-grass in gramineous weeds, Herba Eleusines Indicae, Semen Euphorbiae, drought barnyard grass, Herba Setariae Viridis, Paspalum distichum, Bermuda grass etc. occur density maximum, broadleaf weeds is based on Eclipta prostrata, Amaranthus retroflexus, chenopodium glaucum linn, Herba Acalyphae, piemarker etc., and sedge weed is based on Rhizoma Cyperi.
At present, weeding in cotton field agent can be divided into stem leaf process weedicide and soil processing herbicide, and the cost of stem leaf process weedicide is higher than soil processing herbicide, but stem leaf process weedicide has, and environmental pollution is little, consumption is few, soil humidity is required the advantages such as low. At present, the stem leaf process weedicide that cotton field is conventional has trifloxysulfuron and sethoxydim etc. Trifloxysulfuron belongs to sulfonylurea herbicide, can be absorbed by the root of weeds, stem, leaf after dispenser, upwards conducts downwards in plant materials, by suppressing the biological activity of acetolactate synthestase (ALS) in weeds, and kills weeds. Weeds show as and stop growing, and flavescence of wilting, apical meristem death, weeds are dead in 1-3 week subsequently. The selectivity of weeds and crop mainly due to the difference of catabolism, can be degraded rapidly to non-activity material in cotton body, thus make crop plant from injury by trifloxysulfuron. Trifloxysulfuron is mainly used in preventing and treating most of broadleaf weeds and sedge weed. Such as the broadleaf weedss such as Herba Sonchi Arvensis, lamb's-quarters, little lamb's-quarters, purslane, Amaranthus retroflexus, recessed head amaranth, field thistle, artemisiifolia, Herba Bidentis Bipinnatae, water peanut, Herba seu Flos Convolvuli arvensis, Ivy Glorybind Rhizome, Siberian cocklebur, Eclipta prostrata had good preventive effect, sedge weed Rhizoma Cyperi there is is special efficacy, but the anti-effects of gramineous weeds such as lady's-grass, drought barnyard grass, Herba Eleusines Indicae, Herba Setariae Viridis, Sorghum halepense is poor. Sethoxydim has another name called Sethoxydin, belongs to cyclohexenone analog weedicide, absorbs mainly through weeds stem leaf, conducts to rapidly vegetative point and internode meristematic tissue. Sethoxydim is mainly used in the annual and perennial gramineous weeds of control, and broad leaf crop is very safe, is apply weedicide after seedling rare in broad leaf crop. But, sethoxydim is invalid to broadleaf weeds and sedge weed.
Therefore, exploitation can effectively preventing cotton field gramineous weeds, broadleaf weeds and sedge weed stem leaf process weedicide be the needs of modern agricultural development.
Summary of the invention
It is an object of the invention to provide one can prevent and treat gramineous weeds, broadleaf weeds and sedge weed simultaneously and malignant weed Rhizoma Cyperi specific cotton field stem leaf is processed herbicidal composition, this cotton field stem leaf process herbicidal composition mixed ratio is reasonable, broad weed-killing spectrum, control of weeds are effective, and to cotton safety height.
The present invention also aims to provide the application of a kind of cotton field stem leaf process herbicidal composition.
In order to realize above object, the technical solution adopted in the present invention is: a kind of cotton field stem leaf process herbicidal composition, obtain by activeconstituents and auxiliary material mixture, the weight ratio that described activeconstituents is trifloxysulfuron and sethoxydim, trifloxysulfuron and sethoxydim is: trifloxysulfuron sethoxydim=1 (10-80).
Preferably, in cotton field stem leaf process herbicidal composition, the weight ratio of trifloxysulfuron and sethoxydim is: trifloxysulfuron sethoxydim=1 (20-70).
Preferred further, in cotton field stem leaf process herbicidal composition, the weight ratio of trifloxysulfuron and sethoxydim is: trifloxysulfuron sethoxydim=1 40.
Wherein, in described composition, the weight percentage of activeconstituents is 10%-55%.
Preferably, described composition is wettable powder.
Wherein auxiliary material is the inert ingredient that agriculturally can accept, or is of value to the activeconstituents stable material with drug effect performance in the formulation for other. Auxiliary material can be selected from filler, dispersion agent, wetting agent, synergistic agent one or more, described auxiliary material is conducive to the environmental protection formulation wettable powder being processed into by herbicidal composition agriculturally.
Described filler is mainly used in dilution pesticide original medicine, effective constituent is mixed with the concentration of regulation, keeping the consistence of product effective constituent, the filler adopted is one or more in diatomite, kaolin, white carbon black, light calcium carbonate, potter's clay, attapulgite, atlapulgite. Described dispersion agent refers to the mutual aggegation that can stop solids in solid-liquid dispersion system, the long period keeps a class material of evenly dispersion in the liquid phase to make solia particle, and the dispersion agent adopted is one or more in sodium lignosulfonate and derivative, naphthalenesulfonic acid-formaldehyde condensate (dispersion agent NNO), sulfonated alkyl naphathalene formaldehyde condensation products, alkylphenol-polyethenoxy base formaldehyde condensation products vitriol, polycarboxylate and derivative thereof. Described wetting agent refers to and reduces liquid-solid surface tension, increases the extendability of liquid on solid and seepage force, make its wetting or that acceleration is wetting class material, it can improve the moisture dispersibility of medicament in water, improve liquid on handling object plate-out ability, increasing the perviousness of liquid, be beneficial to atomization, the wetting agent of employing is one or more in sulfonated alkyl naphathalene, Nekal BX (sodium butylnaphthalenesulfonate), polyoxyethylene octylphenol ether, Sodium dodecylbenzene sulfonate, sodium lauryl sulphate, sodium laureth sulfate. Described synergistic agent can increase preparation liquid and stick together performance in the infiltration marked on target weeds, thus accelerate the death cycle of weeds, improve the effect of weeding, selected synergistic agent is one or more in fatty alcohol-polyoxyethylene ether (JFC), span80, nitrogen ketone permeate agent.
Described cotton field stem leaf process herbicidal composition is in the application prevented and kill off in cotton field gramineous weeds, broadleaf weeds and sedge weed.
Cotton field provided by the invention stem leaf process herbicidal composition is mainly used in the annual and perennial gramineous weeds in cotton field, such as barnyard grass, wild avena sativa, Herba Setariae Viridis, lady's-grass, Herba Eleusines Indicae, amur foxtail, cogongrass, Bermuda grass, annual bluegrass etc.; Broadleaf weeds, such as Eclipta prostrata, Amaranthus retroflexus, chenopodium glaucum linn, Herba Acalyphae, piemarker, artemisiifolia, Herba Bidentis Bipinnatae, lamb's-quarters, Siberian cocklebur etc.; And the preventing and kill off of sedge weed Rhizoma Cyperi etc. Every mu of cotton field dosage is 80-140 gram, and every mu is watered 30-40 kilogram, stirs even rear even spraying.
Cotton field provided by the invention stem leaf process herbicidal composition has following useful effect:
1, herbicidal effect is good, broad weed-killing spectrum, trifloxysulfuron and sethoxydim have different structure types and mechanism of action, prove through test, trifloxysulfuron and sethoxydim are composite through rationally, there is obviously synergism, the preventive effect to cotton field weed can be improved greatly, experiment shows, gramineous weeds, broadleaf weeds and sedge weed that cotton field is mainly occurred by the present composition all have significant preventive effect, use with single dose and compare, significantly improve herbicidal effect, and expand herbicide spectrum;
2, using dosage is little, reduces using dosage, while reducing peasant's drug cost, decreases the degree to environmental influence;
3, weeds resistance is delayed, the different action characteristics of trifloxysulfuron and sethoxydim obtain extremely strong mutual supplement with each other's advantages, the anti-effect to various resistant weed can be significantly improved, reduce usage quantity and the times for spraying of unit surface effective constituent, effectively delay the emergence and development of weeds resistance, extend the work-ing life of medicament;
4, security height, the herbicidal composition of the present invention is fixed in cotton leaf after being absorbed by cotton plants and can not move, and can by rapid metabolization, so cotton being had extremely high security.
Embodiment
The technical scheme of the present invention being described in detail below by specific embodiment, so that the present invention is easier to understand, but the present invention is limited to absolutely not these examples. Percentage ratio in following examples is mass percent.
Embodiment 1
Cotton field stem leaf process herbicidal composition: trifloxysulfuron sethoxydim (1 10) wettable powder of activeconstituents weight percent content 55%: take 5% trifloxysulfuron respectively, 50% sethoxydim, 6% sodium lignosulfonate, 3% Nekal BX, 3% nitrogen ketone permeate agent, white carbon black complement to 100%. The powderous preparations of the certain particle diameter obtained through comminution by gas stream after being mixed in a mixer by above-mentioned raw materials, after being up to the standards, obtains 55% trifloxysulfuron sethoxydim wettable powder.
Embodiment 2
Cotton field stem leaf process herbicidal composition: activeconstituents weight percent content 31.5% trifloxysulfuron sethoxydim (1 20) wettable powder: take 1.5% trifloxysulfuron respectively, 30% sethoxydim, 7% polycarboxylate, 4% sodium lauryl sulphate, 3%span80,20% white carbon black, kaolin complement to 100%. The powderous preparations of the certain particle diameter obtained through comminution by gas stream after being mixed in a mixer by above-mentioned raw materials, after being up to the standards, obtains 31.5% trifloxysulfuron sethoxydim wettable powder.
Embodiment 3
Cotton field stem leaf process herbicidal composition: activeconstituents weight percent content 37.2% trifloxysulfuron sethoxydim (1 30) wettable powder: take 1.2% trifloxysulfuron respectively, 36% sethoxydim, 5% sodium lignosulfonate, 4% Sodium dodecylbenzene sulfonate, 3%span80,25% white carbon black, kaolin complement to 100%. The powderous preparations of the certain particle diameter obtained through comminution by gas stream after being mixed in a mixer by above-mentioned raw materials, after being up to the standards, obtains 37.2% trifloxysulfuron sethoxydim wettable powder.
Embodiment 4
Cotton field stem leaf process herbicidal composition: activeconstituents weight percent content 16.4% trifloxysulfuron sethoxydim (1 40) wettable powder: take 0.4% trifloxysulfuron respectively, 16% sethoxydim, 5.5% dispersion agent (NNO), 3.5% sodium laureth sulfate, 4% nitrogen ketone permeate agent, kaolin complement to 100%. The powderous preparations of the certain particle diameter obtained through comminution by gas stream after being mixed in a mixer by above-mentioned raw materials, after being up to the standards, obtains 16.4% trifloxysulfuron sethoxydim wettable powder.
Embodiment 5
Cotton field stem leaf process herbicidal composition: activeconstituents weight percent content 10.2% trifloxysulfuron sethoxydim (1 50) wettable powder: take 0.2% trifloxysulfuron respectively, 10% sethoxydim, 5% polycarboxylate, 3.5% polyoxyethylene octylphenol ether, 4% nitrogen ketone permeate agent, kaolin complement to 100%. The powderous preparations of the certain particle diameter obtained through comminution by gas stream after being mixed in a mixer by above-mentioned raw materials, after being up to the standards, obtains 10.2% trifloxysulfuron sethoxydim wettable powder.
Embodiment 6
Cotton field stem leaf process herbicidal composition: activeconstituents weight percent content 48.8% trifloxysulfuron sethoxydim (1 60) wettable powder: take 0.8% trifloxysulfuron respectively, 48% sethoxydim, 7% polycarboxylate, 5% sodium lauryl sulphate, 3%span80, white carbon black complement to 100%. The powderous preparations of the certain particle diameter obtained through comminution by gas stream after being mixed in a mixer by above-mentioned raw materials, after being up to the standards, obtains 48.8% trifloxysulfuron sethoxydim wettable powder.
Embodiment 7
Cotton field stem leaf process herbicidal composition: activeconstituents weight percent content 21.3% trifloxysulfuron sethoxydim (1 70) wettable powder: take 0.3% trifloxysulfuron respectively, 21% sethoxydim, 6% sodium lignosulfonate, 3.5% polyoxyethylene octylphenol ether, 3%JFC, 15% white carbon black, kaolin complement to 100%. The powderous preparations of the certain particle diameter obtained through comminution by gas stream after being mixed in a mixer by above-mentioned raw materials, after being up to the standards, obtains 21.3% trifloxysulfuron sethoxydim wettable powder.
Embodiment 8
Cotton field stem leaf process herbicidal composition: activeconstituents weight percent content 40.5% trifloxysulfuron sethoxydim (1 80) wettable powder: take 0.5% trifloxysulfuron respectively, 40% sethoxydim, 6.5% sulfonated alkyl naphathalene formaldehyde condensation products, 3.5% lauryl alcohol vitriol, 3%JFC, 30% white carbon black, kaolin complement to 100%. The powderous preparations of the certain particle diameter obtained through comminution by gas stream after being mixed in a mixer by above-mentioned raw materials, after being up to the standards, obtains 40.5% trifloxysulfuron sethoxydim wettable powder.
Effect test
Test example 1 toxicity measures
1.1 test objects
Under greenhouse experiment, adopt pot experiment method, the herbicidal effect of the cotton field stem leaf process herbicidal composition that research performation example 1-8 provides, and with the cotoxicity coefficient method of Sun Yunpei evaluate trifloxysulfuron and sethoxydim mixed in varing proportions after combined action type, be the rational mixture offer scientific basis of trifloxysulfuron and sethoxydim.
1.2 test conditions
1.2.1 reagent agent: the cotton field stem leaf process herbicidal composition that the 95% former medicine of trifloxysulfuron, the 95% former medicine of sethoxydim, embodiment 1-8 provide; The cotton field stem leaf process herbicidal composition that each embodiment provides all adopts now with the current.
1.2.2 for examination weeds: gramineous weeds (barnyard grass, wild avena sativa, lady's-grass, Herba Eleusines Indicae), broadleaf weeds (Amaranthus retroflexus, chenopodium glaucum linn, Herba Acalyphae), sedge weed (Rhizoma Cyperi), seed is collected in field, and percentage of germination is more than 90%.
Cultivation for examination weeds adopts indoor pot culture method. Test soil is the special soil of test that non-medication plot is collected, get flowerpot of the same size, soil is filled to 2/3 highly locate, add water and treat soil complete wetting, weed seed vernalization in biochemical culture case showed money or valuables one carries unintentionally evenly is placed in flowerpot, each about 100 of every basin, lid soil 0.5-1cm is placed in greenhouse cellar culture.
1.3 test design
The cotton field stem leaf process herbicidal composition of trifloxysulfuron and sethoxydim single dose and embodiment 1-8 offer being established 5 dosage respectively, separately establishes blank, each test process repeats 4 times. Treatment agent dosage is shown in Table 1.
The setting (concentration g (a.i.)/mu) of table 1 drug dose
Blank is separately established to test 1. Adopting 552 third type atomizers that the weeds 2-5 leaf phase carries out stem leaf spraying process, the spraying amount of being watered is 35 kgs/acre. Continuing in room temperature after process to cultivate, keep soil humidity 100%, routine observation respectively processes the upgrowth situation of weeds, weeds strain number after " Invest, Then Investigate " respectively processed in 30 days and the strain number of check plot weeds. Toxicity regression curve, ED is calculated by the abundant method of Sun Yun50Value, relation conefficient, co-toxicity coefficient, it is determined that the most adaptive ratio.
Calculation formula is as follows:
In formula: the anti-effect of E strain;
C compares weeds over-ground part weeds strain number;
T processes weeds over-ground part weeds strain number.
In formula: ATI mixture actual measurement toxicity index;
The ED of S standard herbicide50, unit is gram every mu of significant quantity (g (a.i.)/mu);
The ED of M mixture50, unit is gram every mu of significant quantity (g (a.i.)/mu).
TTI=TIA��PA+TIB��PB.....................................(3)
In formula: the theoretical toxicity index of TTI mixture;
TIAA medicament toxicity index;
PAThe percentage composition of A medicament in mixture, unit is percentage (%)
TIBB medicament toxicity index;
PBThe percentage composition of B medicament in mixture, unit is percentage (%).
In formula: CTC cotoxicity coefficient;
ATI mixture actual measurement toxicity index;
The theoretical toxicity index of TTI mixture.
Cotoxicity coefficient CTC >=120 of composite dose show as synergism; CTC��80 show as antagonistic action; 80 < CTC < 120 show as summation action.
1.4 results and analysis
1.4.1 the cotton field stem leaf process herbicidal composition of trifloxysulfuron and sethoxydim single dose and embodiment 1-8 offer is to the fresh heavy anti-effect of weeds, the results are shown in Table 2.
30 days anti-effects (%) to weeds after table 2 dispenser
1.4.2 the cotton field stem leaf process herbicidal composition that embodiment 1-8 provides is to the judgement of weeds combined action
Each medicament is to the anti-effect of weeds as shown in Table 2. By its virulence regression equation of formulae discovery, ED50, relation conefficient, cotoxicity coefficient, the results are shown in Table 3.
Table 3 trifloxysulfuron and sethoxydim mixture are to the combined action of cotton field main weeds
As shown in Table 3, the cotton field stem leaf process herbicidal composition that embodiment 1-8 provides, namely when the weight ratio of trifloxysulfuron and sethoxydim is 1 (10-80), cotton field main weeds is shown good synergy or addition, particularly embodiment 2-7, namely when the weight ratio of trifloxysulfuron and sethoxydim is 1 (20-70), cotoxicity coefficient CTC is greater than 120, synergism is obvious, and composite effect is better, wherein embodiment 4, when the weight ratio of trifloxysulfuron and sethoxydim is 1 40, cotoxicity coefficient is maximum, CTC=284, composite best results. Cotton field gramineous weeds, broadleaf weeds and sedge weed all had obvious synergism.
Test example 2 cotton safety measures
2.1 test objects
Under greenhouse experiment, adopting pot experiment method, the cotton field stem leaf process herbicidal composition that research performation example provides is to the security of cotton.
2.2 test materials
Trial crops: cotton seeds (single No. 6 of profit);
Test weeds: lady's-grass, Herba Eleusines Indicae, Herba Setariae Viridis, lamb's-quarters, Herba Acalyphae, seed is collected in field, and percentage of germination is more than 90%;
Test medicine: the cotton field stem leaf process herbicidal composition that embodiment 4 provides.
2.3 test materialss prepare
The preparation of crop: 4/5 place that the special soil of test is quantitatively filled to basin alms bowl, makes soil complete wetting from top-watered. Evenly broadcast sowing pretreated in soil surface for examination cotton seeds, each basin alms bowl sowing about 50, earthing 1-2cm, cellar culture in hot-house culture case is moved into after sowing, with infiltrating irrigation mode moisturizing bottom basin alms bowl to state of saturation, cotton seedling go out neat after every basin cotton seedling number is decided to be 30 strains, treat that cotton seedling grows to 3-4 leaf and expects to use.
The preparation of weeds: 4/5 place that the special soil of test is quantitatively filled to basin alms bowl, makes soil complete wetting from top-watered. Evenly broadcast sowing pretreated in soil surface for examination weed seed, each basin alms bowl sowing about 100, earthing 0.5-1cm, cellar culture in hot-house culture case is moved into after sowing, with infiltrating irrigation mode moisturizing bottom basin alms bowl to state of saturation, every basin number of weeds is decided to be 80 strains after emerging by weeds, treats that weeds grow to 3-5 leaf and expect to use.
The preparation of test medicine: accurately taking quantitative medicament with electronic balance, the aqueous solution is diluted to desired concn. 5 series doses from low dosage to high dosage are established in test.
2.4 application method
In the cotton 3-4 leaf phase, weeds 3-5 leaf phase stem leaf spraying processes, and is placed in tower and sprays medicine (ASS-4 type pesticide spraying system, DG8003 shower nozzle, spray pressure 2.75MPA, spouting liquid 30kg/ mu), continues to be placed in greenhouse and cultivate observation after dispenser.
2.5 investigation and method of calculation
Crop is investigated: after dispenser, investigating each process cotton with or without symptom of chemical damage, if having, recording symptom of chemical damage, grade in detail, after medicine 20 days, weighs each process cotton fresh weight, calculating fresh weight inhibition.
Weedy rices: after dispenser, the growth conditions of record weeds such as color changes (yellow, albefaction etc.), metamorphosis (new leaf deformity, distortion etc.), growth change (dehydration, wither, dwarfing etc.), after medicine 20 days, weigh each process weeds over-ground part fresh heavy, calculate the fresh weight inhibition of weeds.
Method of calculation: the logarithmic value of drug dose and inhibiting rate are carried out regression analysis with DPS software, calculate cotton ED10Value and weeds ED90Value, obtains selectivity index.
Selectivity index=ED10/ED90��
2.6 results and analysis
After dispenser 20 days, the cotton field stem leaf process herbicidal composition that embodiment 4 provides to the restraining effect of weeds and cotton respectively in table 4, table 5.
Table 4 embodiment 4 cotton field stem leaf process herbicidal composition is to the restraining effect of weeds
Table 5 embodiment 4 cotton field stem leaf process herbicidal composition is to the restraining effect of cotton
By table 4, table 5 data, tried to achieve the ED suppressing weed growth 90% by DPS software90Value is 219.12, suppresses the ED of cotton growth 10%10Value is 677.89, and selectivity coefficient is ED10/ED90=677.89/219.12=3.09, is greater than 2, it is possible to show that the medicament of embodiment 4 has obvious selectivity, to cotton high safety.
Test example 3 field efficacy measures
3.1 test design
7 process are established in test, repeat for 4 times, totally 28 process communities, often process plot area 20 square metres, and random district group arranges. In the cotton 3-4 leaf phase, the weeds 3-5 leaf phase carries out stem leaf spraying process. The cotton field stem leaf process herbicidal composition that process (1)-(4) provide for embodiment 4, dosage is respectively 80,100,120,140g/ mu, process (5)-(6) are comparison medicament (streat drug), and process (7) is clear water blank (CK). It is watered 30-40 kilogram by every mu, secondary dilution, stirs evenly, adopt 552 third type atomizer even spraying. The anti-effect of strain of weeds is surveyed after 15 days, 30 days respectively after dispenser. Field main weeds has barnyard grass, Herba Eleusines Indicae, lady's-grass, Eclipta prostrata, Amaranthus retroflexus, Herba Setariae Viridis, lamb's-quarters, Herba Acalyphae, Siberian cocklebur, Rhizoma Cyperi etc.
3.2 investigation and method of calculation
Every community gets 4 points at random, investigates 1/4 square metre at often, within after dispenser 15 days and 30 days, investigates weeds situation respectively, records kind and the strain number of weeds respectively, calculate the anti-effect of weeds strain, and the formula calculating the anti-effect of strain is as follows:
Table 6 field control effectiveness test result
Table 6 test-results shows: embodiment 4 wettable powder is when low dosage (80g/ mu), the anti-effect of gramineous weeds and broadleaf weeds is reached more than 70%, along with the increase of consumption, anti-effect significantly improves, time high dosage (140g/ mu), the anti-effect of gramineous weeds and broadleaf weeds is all reached more than 90%, and it is used alone a certain activeconstituents and compares, expanding herbicide spectrum, a dispenser can control the weeds in crop whole vegetative period. Through visual observations, embodiment 4 herbicidal composition treatment zone cotton strain height, Ye Se and blank district are basically identical, show that embodiment 4 herbicidal composition is to cotton safety.
In sum, the cotton field stem leaf process herbicidal composition that embodiment of the present invention 1-8 provides is rationally composite, the mixture of two kinds of medicaments solves trifloxysulfuron to gramineous weeds weak effect, the shortcoming that sethoxydim is invalid to broadleaf weeds and sedge weed is a kind of ideal cotton field stem leaf process weedicide.
Claims (5)
1. a cotton field stem leaf process herbicidal composition, it is characterised in that, obtain by activeconstituents and auxiliary material mixture, the weight ratio that described activeconstituents is trifloxysulfuron and sethoxydim, trifloxysulfuron and sethoxydim is: trifloxysulfuron sethoxydim=1 40.
2. cotton field according to claim 1 stem leaf process herbicidal composition, it is characterised in that, in described composition, the weight percentage of activeconstituents is 10%-55%.
3. cotton field according to claim 1 stem leaf process herbicidal composition, it is characterised in that, described composition is wettable powder.
4. cotton field according to claim 3 stem leaf process herbicidal composition, it is characterised in that, described auxiliary material is one or more in filler, dispersion agent, wetting agent, synergistic agent.
5. cotton field according to claim 4 stem leaf process herbicidal composition, it is characterised in that, described filler is one or more in diatomite, kaolin, white carbon black, light calcium carbonate, potter's clay, attapulgite, atlapulgite; Dispersion agent is one or more in sodium lignosulfonate and derivative, naphthalenesulfonic acid-formaldehyde condensate, sulfonated alkyl naphathalene formaldehyde condensation products, alkylphenol-polyethenoxy base formaldehyde condensation products vitriol, polycarboxylate and derivative thereof; Wetting agent is one or more in sulfonated alkyl naphathalene, Nekal BX, polyoxyethylene octylphenol ether, Sodium dodecylbenzene sulfonate, sodium lauryl sulphate, sodium laureth sulfate; Synergistic agent is one or more in fatty alcohol-polyoxyethylene ether, span80, nitrogen ketone permeate agent.
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| US20040171488A1 (en) * | 1999-12-03 | 2004-09-02 | Dieter Feucht | N-aryl-uracils based Herbicides |
| CN101410015A (en) * | 2006-03-06 | 2009-04-15 | 伊萨罗里斯卡公司 | New synergistic herbicidal compositions |
| CN101946788A (en) * | 2010-09-07 | 2011-01-19 | 合肥星宇化学有限责任公司 | Herbicidal composition for cotton fields |
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| US20040171488A1 (en) * | 1999-12-03 | 2004-09-02 | Dieter Feucht | N-aryl-uracils based Herbicides |
| CN101410015A (en) * | 2006-03-06 | 2009-04-15 | 伊萨罗里斯卡公司 | New synergistic herbicidal compositions |
| CN101946788A (en) * | 2010-09-07 | 2011-01-19 | 合肥星宇化学有限责任公司 | Herbicidal composition for cotton fields |
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Application publication date: 20150107 Assignee: Xiangyang Tuogu Agricultural Products Co.,Ltd. Assignor: HENAN VISION TECHNOLOGY Co.,Ltd. Contract record no.: X2020980000007 Denomination of invention: Herbicide composition for stem and leaf treatment of cotton field and application of herbicide composition Granted publication date: 20160601 License type: Common License Record date: 20200103 |
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Denomination of invention: A herbicide combination for cotton field stem and leaf treatment and its application Effective date of registration: 20231226 Granted publication date: 20160601 Pledgee: China Postal Savings Bank Co.,Ltd. Zhengzhou Branch Pledgor: HENAN VISION TECHNOLOGY Co.,Ltd. Registration number: Y2023980073737 |