CN104255764A - Herbicide composition for stem and leaf treatment of cotton field and application of herbicide composition - Google Patents
Herbicide composition for stem and leaf treatment of cotton field and application of herbicide composition Download PDFInfo
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- CN104255764A CN104255764A CN201410462721.4A CN201410462721A CN104255764A CN 104255764 A CN104255764 A CN 104255764A CN 201410462721 A CN201410462721 A CN 201410462721A CN 104255764 A CN104255764 A CN 104255764A
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- Prior art keywords
- cotton
- sethoxydim
- cauline leaf
- herbicidal composition
- trifloxysulfuron
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- AIMMSOZBPYFASU-UHFFFAOYSA-N n-(4,6-dimethoxypyrimidin-2-yl)-n'-[3-(2,2,2-trifluoroethoxy)pyridin-1-ium-2-yl]sulfonylcarbamimidate Chemical compound COC1=CC(OC)=NC(NC(=O)NS(=O)(=O)C=2C(=CC=CN=2)OCC(F)(F)F)=N1 AIMMSOZBPYFASU-UHFFFAOYSA-N 0.000 claims abstract description 50
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to the technical field of herbicides, particularly discloses a herbicide composition for stem and leaf treatment of a cotton field, and further discloses application of the herbicide composition. The herbicide composition is prepared by mixing active ingredients and auxiliaries, wherein the active ingredients comprise trifloxysulfuron and sethoxydim in a weight ratio of 1:(10-80). The herbicide composition has good weeding effect and broad herbicide controlling spectrum, is capable of improving the effect of preventing and killing weed in a cotton field to great extent, has a remarkable effect of preventing and killing gramineous weeds, broadleaf weeds and cyperaceae weeds which mainly grow in the cotton field, and hardly affects the environment due to small using amount; generation and development of weed resistance can be effectively delayed, and the service life of the herbicide can be prolonged; and after being absorbed by cotton plants, the herbicide composition is fixed on cotton leaves, cannot move, and can be quickly metabolized, thus having an extremely high safety for cotton.
Description
Technical field
The present invention relates to herbicide technology field, be specifically related to a kind of Cotton Fields cauline leaf process herbicidal composition, also relate to its application simultaneously.
Background technology
Cotton is the main economic crops of China, and long-term cultivated area is more than 5,000,000 hm
2, accounting for 26% of the economic crops gross area, is 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 damage by disease and insect, have a strong impact on the normal growth of cotton, cause the gined cotton underproduction about 250,000 tons throughout the year, endanger the serious underproduction up to 60%, therefore effectively controlling Cotton Fields weeds is one of important measures improving output of cotton and quality.Show according to Cotton Fields weedy rices result, weed in cotton field mainly contains 24 sections about more than 60 and plants, it is maximum to there is density in the lady's-grass wherein in grassy weed, eleusine indica, moleplant seed, non-irrigated barnyard grass, green foxtail, Paspalum distichum, Bermuda grass etc., broad leaved weed is based on Eclipta prostrata, Amaranthus retroflexus, chenopodium glaucum linn, acalypha copperleaf, piemarker etc., and sedge weed is based on the rhizome of nutgrass flatsedge.
At present, weeding in cotton field agent can be divided into cauline leaf process weed killer herbicide and soil processing herbicide, and the cost of cauline leaf process weed killer herbicide is higher than soil processing herbicide, but cauline leaf process weed killer herbicide has, and environmental pollution is little, consumption is few, require the advantages such as low to soil moisture.At present, the cauline leaf process weed killer herbicide that Cotton Fields is conventional has trifloxysulfuron and sethoxydim etc.Trifloxysulfuron belongs to sulfonylurea herbicide, can be absorbed after dispenser by the root of weeds, stem, leaf, upwards conducts downwards in plant corpus, by suppressing the biologically active 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.Trifloxysulfuron mainly due to the difference of katabolism to the selectivity of weeds and crop, can be degraded rapidly to non-activity material, thus crop plant is escaped injury in cotton body.Trifloxysulfuron is mainly used in preventing and treating most of broad leaved weed and sedge weed.Such as to broad leaved weeds such as corn sow thistle, lamb's-quarters, little lamb's-quarters, kitchen garden, Amaranthus retroflexus, recessed head amaranth, field thistle, artemisiifolia, beggar-ticks, water peanut, field bindweed, ivy glorybind, Siberian cocklebur, Eclipta prostratas, there is good preventive effect, special efficacy is had to the sedge weed rhizome of nutgrass flatsedge, but poor to grassy weed preventive effects such as lady's-grass, non-irrigated barnyard grass, eleusine indica, green foxtail, Sorghum halepense.Sethoxydim has another name called Sethoxydin, belongs to cyclohexenone analog weed killer herbicide, absorbs, conduct to rapidly growing point and internode meristematic tissue mainly through weeds cauline leaf.Sethoxydim is mainly used in preventing and treating annual and perennial grassy weed, very safe to broad leaf crop, is to apply weed killer herbicide after seedling rare in broad leaf crop.But, sethoxydim to broad leaved weed and sedge weed invalid.
Therefore, exploitation can effectively preventing Cotton Fields grassy weed, broad leaved weed and sedge weed cauline leaf process weed killer herbicide be the needs of modern agricultural development.
Summary of the invention
The object of this invention is to provide one and can prevent and treat grassy weed, broad leaved weed and sedge weed and to the malignant weed rhizome of nutgrass flatsedge specific Cotton Fields cauline leaf process herbicidal composition simultaneously, this Cotton Fields cauline leaf process herbicidal composition mixed ratio is reasonable, broad weed-killing spectrum, control of weeds are effective, and high to cotton safety.
The present invention also aims to the application that a kind of Cotton Fields cauline leaf process herbicidal composition is provided.
In order to realize above object, the technical solution adopted in the present invention is: a kind of Cotton Fields cauline leaf process herbicidal composition, obtained by active component and auxiliary material mixture, described active component is trifloxysulfuron and sethoxydim, and the weight ratio of trifloxysulfuron and sethoxydim is: trifluoro pyridine Huang Long ︰ sethoxydim=1 ︰ (10-80).
Preferably, in Cotton Fields cauline leaf process herbicidal composition, the weight ratio of trifloxysulfuron and sethoxydim is: trifluoro pyridine Huang Long ︰ sethoxydim=1 ︰ (20-70).
Preferred further, in Cotton Fields cauline leaf process herbicidal composition, the weight ratio of trifloxysulfuron and sethoxydim is: trifluoro pyridine Huang Long ︰ sethoxydim=1 ︰ 40.
Wherein, in described composition, the weight percentage of active component is 10%-55%.
Preferably, described composition is wetting powder.
Wherein auxiliary material is agriculturally acceptable insecticides adjuvant, or is of value to the active component material that plays of stable and drug effect in the formulation for other.Auxiliary material can be selected from one or more in filler, dispersant, wetting agent, synergist, and described auxiliary material is conducive to the environmental protection formulation wetting powder be processed into by Herbicidal combinations agriculturally.
Described filler is mainly used in diluting pesticide original medicine, active ingredient is mixed with the concentration of regulation, keep the uniformity of product active ingredient, the filler adopted is one or more in diatomite, kaolin, white carbon, precipitated calcium carbonate, potter's clay, attapulgite, atlapulgite.Described dispersant refers to the mutual aggegation that can stop solids in solid-liquid dispersion, the long period keeps a homodisperse class material in the liquid phase to make solia particle, and the dispersant adopted is one or more in sodium lignin sulfonate and derivative, naphthalenesulfonic acid-formaldehyde condensate (dispersant NNO), alkylnaphthalene sulfonate formaldehyde condensation products, alkylphenol-polyethenoxy base formaldehyde condensation products sulphate, polycarboxylate and derivative thereof.Described wetting agent refers to and reduces liquid-solid surface tension, increases the autgmentability of liquid on solid and penetration, make its wetting or that acceleration is wetting class material, it can improve the moisture dispersibility of medicament in water, improve the plate-out ability of liquid on handling object, increase the permeability of liquid, be beneficial to atomization, and the wetting agent of employing is one or more in alkylnaphthalene sulfonate, Nekal BX (sodium butylnaphthalenesulfonate), OPEO, neopelex, lauryl sodium sulfate, sodium laureth sulfate.Described synergist can increase the infiltration of preparation liquid on target weeds and stick together performance, thus accelerate the death cycle of weeds, improve the effect of weeding, selected synergist is one or more in fatty alcohol-polyoxyethylene ether (JFC), span80, azone bleeding agent.
Described Cotton Fields cauline leaf process herbicidal composition is preventing and kill off the application in Cotton Fields grassy weed, broad leaved weed and sedge weed.
Cotton Fields cauline leaf process herbicidal composition provided by the invention is mainly used in the annual and perennial grassy weed of Cotton Fields, as barnyard grass, wild oat, green foxtail, lady's-grass, eleusine indica, amur foxtail, cogongrass, Bermuda grass, annual bluegrass etc.; Broad leaved weed, as Eclipta prostrata, Amaranthus retroflexus, chenopodium glaucum linn, acalypha copperleaf, piemarker, artemisiifolia, beggar-ticks, lamb's-quarters, Siberian cocklebur etc.; And the preventing and kill off of the sedge weed rhizome of nutgrass flatsedge etc.Every mu of Cotton Fields dosage is 80-140 gram, and every mu is watered 30-40 kilogram, stirs evenly rear even spraying.
Cotton Fields cauline leaf process herbicidal composition provided by the invention has following beneficial 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 composite through rationally, there is obviously synergistic effect, the preventive effect to Cotton Fields weeds can be improved greatly, experiment shows, the present composition all has significant preventive effect to the grassy weed mainly occurred between Cotton Fields, broad leaved weed and sedge weed, use with single dose and compare, significantly improve herbicidal effect, and expand herbicide spectrum;
2, using dosage is little, reduces using dosage, while minimizing peasant drug cost, decreases the degree to environmental influence;
3, Weed Resistance is delayed, the different action characteristics of trifloxysulfuron and sethoxydim obtain extremely strong mutual supplement with each other's advantages, the preventive effect to various resistant weed can be significantly improved, reduce usage amount and the times for spraying of unit are active ingredient, effectively delay the emergence and development of Weed Resistance, extend the service life of medicament;
4, safety is high, and herbicidal composition of the present invention is fixed in cotton leaf after being absorbed by cotton plants and can not moves, and can by rapid metabolization, so have high safety to cotton.
Embodiment
Be described in detail to technical scheme of the present invention below by specific embodiment, to make the present invention be easier to understand, but the present invention is limited to absolutely not these examples.Percentage in following examples is mass percent.
Embodiment 1
Cotton Fields cauline leaf process herbicidal composition: trifloxysulfuron sethoxydim (the 1 ︰ 10) wetting powder of active component weight percent content 55%: take 5% trifloxysulfuron respectively, 50% sethoxydim, 6% sodium lignin sulfonate, 3% Nekal BX, 3% azone bleeding agent, white carbon complement to 100%.The powderous preparations of the certain particle diameter obtained through air-flow crushing after being mixed in a mixer by above-mentioned raw materials, through after the assay was approved, obtains 55% trifloxysulfuron sethoxydim wetting powder.
Embodiment 2
Cotton Fields cauline leaf process herbicidal composition: active component weight percent content 31.5% trifloxysulfuron sethoxydim (1 ︰ 20) wetting powder: take 1.5% trifloxysulfuron respectively, 30% sethoxydim, 7% polycarboxylate, 4% lauryl sodium sulfate, 3%span80,20% white carbon, kaolin complements to 100%.The powderous preparations of the certain particle diameter obtained through air-flow crushing after being mixed in a mixer by above-mentioned raw materials, through after the assay was approved, obtains 31.5% trifloxysulfuron sethoxydim wetting powder.
Embodiment 3
Cotton Fields cauline leaf process herbicidal composition: active component weight percent content 37.2% trifloxysulfuron sethoxydim (1 ︰ 30) wetting powder: take 1.2% trifloxysulfuron respectively, 36% sethoxydim, 5% sodium lignin sulfonate, 4% neopelex, 3%span80,25% white carbon, kaolin complements to 100%.The powderous preparations of the certain particle diameter obtained through air-flow crushing after being mixed in a mixer by above-mentioned raw materials, through after the assay was approved, obtains 37.2% trifloxysulfuron sethoxydim wetting powder.
Embodiment 4
Cotton Fields cauline leaf process herbicidal composition: active component weight percent content 16.4% trifloxysulfuron sethoxydim (1 ︰ 40) wetting powder: take 0.4% trifloxysulfuron respectively, 16% sethoxydim, 5.5% dispersant (NNO), 3.5% sodium laureth sulfate, 4% azone bleeding agent, kaolin complements to 100%.The powderous preparations of the certain particle diameter obtained through air-flow crushing after being mixed in a mixer by above-mentioned raw materials, through after the assay was approved, obtains 16.4% trifloxysulfuron sethoxydim wetting powder.
Embodiment 5
Cotton Fields cauline leaf process herbicidal composition: active component weight percent content 10.2% trifloxysulfuron sethoxydim (1 ︰ 50) wetting powder: take 0.2% trifloxysulfuron respectively, 10% sethoxydim, 5% polycarboxylate, 3.5% OPEO, 4% azone bleeding agent, kaolin complements to 100%.The powderous preparations of the certain particle diameter obtained through air-flow crushing after being mixed in a mixer by above-mentioned raw materials, through after the assay was approved, obtains 10.2% trifloxysulfuron sethoxydim wetting powder.
Embodiment 6
Cotton Fields cauline leaf process herbicidal composition: active component weight percent content 48.8% trifloxysulfuron sethoxydim (1 ︰ 60) wetting powder: take 0.8% trifloxysulfuron respectively, 48% sethoxydim, 7% polycarboxylate, 5% lauryl sodium sulfate, 3%span80, white carbon complement to 100%.The powderous preparations of the certain particle diameter obtained through air-flow crushing after being mixed in a mixer by above-mentioned raw materials, through after the assay was approved, obtains 48.8% trifloxysulfuron sethoxydim wetting powder.
Embodiment 7
Cotton Fields cauline leaf process herbicidal composition: active component weight percent content 21.3% trifloxysulfuron sethoxydim (1 ︰ 70) wetting powder: take 0.3% trifloxysulfuron respectively, 21% sethoxydim, 6% sodium lignin sulfonate, 3.5% OPEO, 3%JFC, 15% white carbon, kaolin complements to 100%.The powderous preparations of the certain particle diameter obtained through air-flow crushing after being mixed in a mixer by above-mentioned raw materials, through after the assay was approved, obtains 21.3% trifloxysulfuron sethoxydim wetting powder.
Embodiment 8
Cotton Fields cauline leaf process herbicidal composition: active component weight percent content 40.5% trifloxysulfuron sethoxydim (1 ︰ 80) wetting powder: take 0.5% trifloxysulfuron respectively, 40% sethoxydim, 6.5% alkylnaphthalene sulfonate formaldehyde condensation products, 3.5% lauryl alcohol sulphate, 3%JFC, 30% white carbon, kaolin complements to 100%.The powderous preparations of the certain particle diameter obtained through air-flow crushing after being mixed in a mixer by above-mentioned raw materials, through after the assay was approved, obtains 40.5% trifloxysulfuron sethoxydim wetting powder.
Effect test
Test example 1 toxicity measures
1.1 test objective
Under greenhouse experiment, adopt pot-culture method, the herbicidal effect of the Cotton Fields cauline leaf process herbicidal composition that research performation example 1-8 provides, and with the co-toxicity coefficient method of Sun Yunpei evaluate trifloxysulfuron and sethoxydim mixed in varing proportions after synergy type, for the rational mixture of trifloxysulfuron and sethoxydim provides scientific basis.
1.2 experimental condition
1.2.1 reagent agent: the Cotton Fields cauline leaf process herbicidal composition that the former medicine of 95% trifloxysulfuron, the former medicine of 95% sethoxydim, embodiment 1-8 provide; The Cotton Fields cauline leaf process herbicidal composition that each embodiment provides all adopts now with the current.
1.2.2 for examination weeds: grassy weed (barnyard grass, wild oat, lady's-grass, eleusine indica), broad leaved weed (Amaranthus retroflexus, chenopodium glaucum linn, acalypha copperleaf), sedge weed (rhizome of nutgrass flatsedge), seed is collected in field, and germination rate is more than 90%.
Cultivation for examination weeds adopts indoor pot cultivation.Test soil is the test special soil that non-medication plot is collected, get flowerpot of the same size, soil is filled to 2/3 At The Height, add water and treat soil complete wetting, weed seed vernalization in biochemical cultivation case showed money or valuables one carries unintentionally evenly is placed in flowerpot, each about 100 of every basin, blinding 0.5-1cm is placed on cellar culture in greenhouse.
1.3 experimental scheme
The Cotton Fields cauline leaf process herbicidal composition that trifloxysulfuron and sethoxydim single dose and embodiment 1-8 provide is established 5 dosage respectively, separately establishes blank, each test process repetition 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.Adopt 552 third type sprayers to carry out cauline leaf spraying process to the weeds 2-5 leaf phase, the spraying amount of being watered is 35 kgs/acre.Continue in room temperature after process to cultivate, keep soil moisture 100%, routine observation respectively processes the upgrowth situation of weeds, the 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 Yun
50value, correlation coefficient, co-toxicity coefficient, determine the most adaptive ratio.
Computing formula is as follows:
In formula: E---strain preventive effect;
C---contrast weeds acrial part weeds strain number;
T---process weeds acrial part weeds strain number.
In formula: ATI---mixture actual measurement toxicity index;
The ED of S---standard herbicide
50, unit is gram every mu of effective dose (g (a.i.)/mu);
The ED of M---mixture
50, unit is gram every mu of effective dose (g (a.i.)/mu).
TTI＝TI
A×P
A+TI
B×P
B.....................................(3)
In formula: TTI---the theoretical toxicity index of mixture;
TI
a---A medicament toxicity index;
P
a---the percentage composition of A medicament in mixture, unit is percentage (%)
TI
b---B medicament toxicity index;
P
b---the percentage composition of B medicament in mixture, unit is percentage (%).
In formula: CTC---co-toxicity coefficient;
ATI---mixture actual measurement toxicity index;
The theoretical toxicity index of TTI---mixture.
Co-toxicity coefficient CTC >=120 of built agent show as synergistic effect; CTC≤80 show as antagonism; 80 < CTC < 120 show as summation action.
1.4 results and analysis
1.4.1 the Cotton Fields cauline leaf process herbicidal composition that provides of trifloxysulfuron and sethoxydim single dose and embodiment 1-8 is to the fresh weight preventive effect of weeds, the results are shown in Table 2.
30 days preventive effects to weeds (%) after table 2 dispenser
1.4.2 the Cotton Fields cauline leaf process herbicidal composition that provides of embodiment 1-8 is to the symphyogenetic judgement of weeds
Each medicament is to the preventive effect of weeds as shown in Table 2.By its virulence regression equation of formulae discovery, ED
50, correlation coefficient, co-toxicity coefficient, the results are shown in Table 3.
Table 3 trifloxysulfuron and sethoxydim mixture are to the synergy of Cotton Fields main weeds
As shown in Table 3, the Cotton Fields cauline leaf process herbicidal composition that embodiment 1-8 provides, namely when the weight ratio of trifloxysulfuron and sethoxydim is 1 ︰ (10-80), good synergy or addition are shown to Cotton Fields main weeds, particularly embodiment 2-7, namely when the weight ratio of trifloxysulfuron and sethoxydim is 1 ︰ (20-70), co-toxicity coefficient CTC is greater than 120, synergistic effect is obvious, and composite effect is better, wherein embodiment 4, when the weight ratio of trifloxysulfuron and sethoxydim is 1 ︰ 40, co-toxicity coefficient is maximum, CTC=284, composite best results.To Cotton Fields grassy weed, broad leaved weed and sedge weed, all there is obvious synergistic effect.
Test example 2 cotton safety measures
2.1 test objective
Under greenhouse experiment, adopt pot-culture method, the Cotton Fields cauline leaf process herbicidal composition that research performation example provides is to the safety of cotton.
2.2 test material
Trial crops: cotton seeds (single No. 6 of profit);
Test weeds: lady's-grass, eleusine indica, green foxtail, lamb's-quarters, acalypha copperleaf, seed is collected in field, and germination rate is more than 90%;
Test medicine: the Cotton Fields cauline leaf process herbicidal composition that embodiment 4 provides.
2.3 test materials prepare
The preparation of crop: 4/5 place test special soil being quantitatively filled to basin alms bowl, makes soil complete wetting from top-watered.By pretreated for trying cotton seeds uniform broadcasting in soil surface, each basin alms bowl sowing about 50, earthing 1-2cm, after planting move into cellar culture in hot-house culture case, with infiltrating irrigation mode moisturizing bottom basin alms bowl to saturation state, after cotton seedling all sprouts, every basin cotton seedling number is decided to be 30 strains, treats that cotton seedling grows to 3-4 leaf and expects to use.
The preparation of weeds: 4/5 place test special soil being quantitatively filled to basin alms bowl, makes soil complete wetting from top-watered.By pretreated for trying weed seed uniform broadcasting in soil surface, each basin alms bowl sowing about 100, earthing 0.5-1cm, after planting move into cellar culture in hot-house culture case, with infiltrating irrigation mode moisturizing bottom basin alms bowl to saturation state, after weeds emerge, every basin number of weeds is decided to be 80 strains, treats that weeds grow to 3-5 leaf and expect to use.
The preparation of test medicine: accurately take quantitative medicament with electronic balance, the aqueous solution is diluted to desired concn.5 series doses from low dosage to high dose are established in test.
2.4 application method
In the cotton 3-4 leaf phase, weeds 3-5 leaf phase cauline leaf spraying process, is placed in spray medicine (ASS-4 type pesticide spraying system, DG8003 shower nozzle, atomisation pressure 2.75MPA, spouting liquid 30kg/ mu) in tower, continues to be placed in greenhouse cultivation and observe after dispenser.
2.5 investigation and computational methods
Crop is investigated: after dispenser, investigate each process cotton with or without symptom of chemical damage, if having, record 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 is as color change (yellow, albefaction etc.), metamorphosis (young leaves deformity, distortion etc.), growth change (dehydration, wither, dwarfing etc.), after medicine 20 days, weigh each process weeds acrial part fresh weight, calculate the fresh weight inhibition of weeds.
Computational methods: carry out regression analysis to the logarithm value of drug dose and inhibiting rate with DPS software, calculate cotton ED
10value and weeds ED
90value, obtains selectivity index.
Selectivity index=ED
10/ ED
90.
2.6 results and analysis
After dispenser 20 days, the Cotton Fields cauline leaf process herbicidal composition that embodiment 4 provides to the inhibitory action of weeds and cotton respectively in table 4, table 5.
Table 4 embodiment 4 Cotton Fields cauline leaf process herbicidal composition is to the inhibitory action of weeds
Table 5 embodiment 4 Cotton Fields cauline leaf process herbicidal composition is to the inhibitory action of cotton
By table 4, table 5 data, tried to achieve the ED suppressing weed growth 90% by DPS software
90value is 219.12, suppresses the ED of cotton growth 10%
10value is 677.89, and selectivity factor is ED
10/ ED
90=677.89/219.12=3.09, is greater than 2, can show that the medicament of embodiment 4 has obvious selectivity, to cotton high safety.
Test example 3 field efficacy measures
3.1 experimental scheme
7 process are established in test, repeat for 4 times, totally 28 process communities, and often process plot area 20 square metres, random district group arranges.In the cotton 3-4 leaf phase, the weeds 3-5 leaf phase carries out cauline leaf spraying process.The Cotton Fields cauline leaf process herbicidal composition that process (1)-(4) provide for embodiment 4, dosage is respectively 80,100,120,140g/ mu, process (5)-(6) are contrast medicament (street drug), and process (7) is clear water blank (CK).Be watered 30-40 kilogram by every mu, secondary dilution, stir, adopt 552 third type sprayer even spraying.The strain preventive effect of weeds is surveyed after 15 days, 30 days respectively after dispenser.Field main weeds has barnyard grass, eleusine indica, lady's-grass, Eclipta prostrata, Amaranthus retroflexus, green foxtail, lamb's-quarters, acalypha copperleaf, Siberian cocklebur, the rhizome of nutgrass flatsedge etc.
3.2 investigation and computational methods
Every community gets 4 points at random, investigates 1/4 square metre at often, and within after dispenser 15 days and 30 days, investigate weeds situation respectively, record kind and the strain number of weeds respectively, calculate weeds strain preventive effect, the formula calculating strain preventive effect is as follows:
Table 6 field control effectiveness test result
Table 6 result of the test shows: embodiment 4 wetting powder is when low dosage (80g/ mu), more than 70% is reached to grassy weed and broad leaved weed preventive effect, along with the increase of consumption, preventive effect significantly improves, time high dose (140g/ mu), all more than 90% is reached to the preventive effect of grassy weed and broad leaved weed, and be used alone a certain active component and compare, expand herbicide spectrum, a dispenser can control the weeds in crop whole vegetative period.Through visual observations, embodiment 4 herbicidal composition treatment region cotton plant height, Ye Se and blank district are basically identical, show that embodiment 4 herbicidal composition is to cotton safety.
In sum, the Cotton Fields cauline 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 grassy weed weak effect, sethoxydim, to broad leaved weed and the invalid shortcoming of sedge weed, is a kind of ideal Cotton Fields cauline leaf process weed killer herbicide.
Claims (8)
1. a Cotton Fields cauline leaf process herbicidal composition, it is characterized in that, obtained by active component and auxiliary material mixture, described active component is trifloxysulfuron and sethoxydim, and the weight ratio of trifloxysulfuron and sethoxydim is: trifluoro pyridine Huang Long ︰ sethoxydim=1 ︰ (10-80).
2. Cotton Fields cauline leaf process herbicidal composition according to claim 1, it is characterized in that, the weight ratio of trifloxysulfuron and sethoxydim is: trifluoro pyridine Huang Long ︰ sethoxydim=1 ︰ (20-70).
3. Cotton Fields cauline leaf process herbicidal composition according to claim 2, it is characterized in that, the weight ratio of trifloxysulfuron and sethoxydim is: trifluoro pyridine Huang Long ︰ sethoxydim=1 ︰ 40.
4., according to the arbitrary described Cotton Fields cauline leaf process herbicidal composition of claim 1-3, it is characterized in that, in described composition, the weight percentage of active component is 10%-55%.
5. Cotton Fields cauline leaf process herbicidal composition according to claim 1, it is characterized in that, described composition is wetting powder.
6. Cotton Fields cauline leaf process herbicidal composition according to claim 1 or 5, it is characterized in that, described auxiliary material is one or more in filler, dispersant, wetting agent, synergist.
7. Cotton Fields cauline leaf process herbicidal composition according to claim 6, it is characterized in that, described filler is one or more in diatomite, kaolin, white carbon, precipitated calcium carbonate, potter's clay, attapulgite, atlapulgite; Dispersant is one or more in sodium lignin sulfonate and derivative, naphthalenesulfonic acid-formaldehyde condensate, alkylnaphthalene sulfonate formaldehyde condensation products, alkylphenol-polyethenoxy base formaldehyde condensation products sulphate, polycarboxylate and derivative thereof; Wetting agent is one or more in alkylnaphthalene sulfonate, Nekal BX, OPEO, neopelex, lauryl sodium sulfate, sodium laureth sulfate; Synergist is one or more in fatty alcohol-polyoxyethylene ether, span80, azone bleeding agent.
8. the arbitrary described Cotton Fields cauline leaf process herbicidal composition of claim 1-3 is preventing and kill off the application in Cotton Fields grassy weed, broad leaved weed and sedge weed.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105746549A (en) * | 2016-03-14 | 2016-07-13 | 南京华洲药业有限公司 | Weeding composition containing trifloxysulfuron and sethoxydim and application of weeding composition containing trifloxysulfuron and sethoxydim |
| CN109220650A (en) * | 2018-09-12 | 2019-01-18 | 湖南省植物保护研究所 | A kind of method of prevention and control weeds in paddy field |
| CN113133450A (en) * | 2020-01-17 | 2021-07-20 | 成都新朝阳作物科学股份有限公司 | Use of polyether compound as synergist of herbicide |
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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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2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105746549A (en) * | 2016-03-14 | 2016-07-13 | 南京华洲药业有限公司 | Weeding composition containing trifloxysulfuron and sethoxydim and application of weeding composition containing trifloxysulfuron and sethoxydim |
| CN109220650A (en) * | 2018-09-12 | 2019-01-18 | 湖南省植物保护研究所 | A kind of method of prevention and control weeds in paddy field |
| CN113133450A (en) * | 2020-01-17 | 2021-07-20 | 成都新朝阳作物科学股份有限公司 | Use of polyether compound as synergist of herbicide |
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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 |