CN103300039A - Compounded herbicide for corn seedlings of postemergence - Google Patents
Compounded herbicide for corn seedlings of postemergence Download PDFInfo
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- CN103300039A CN103300039A CN201310291069XA CN201310291069A CN103300039A CN 103300039 A CN103300039 A CN 103300039A CN 201310291069X A CN201310291069X A CN 201310291069XA CN 201310291069 A CN201310291069 A CN 201310291069A CN 103300039 A CN103300039 A CN 103300039A
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Abstract
The invention provides a compounded herbicide for corn field stem leaves, wherein the compounded herbicide is capable of preventing and killing not only annual gramineae weeds in corn fields but also broad-leaf weeds and cyperus rotundus and the compounded herbicide is safe to corns and has no influence on after-reap crops. According to technical key points, the compounded herbicide is prepared from two active components, namely nicosulfuron and halosulfuron-methyl with a weight ratio of 1:(0.56-2), wherein the content of effective components in the compounded herbicide is 2-85% by weight percent. The compounded herbicide has a remarkable weeding effect and is obviously better than that of two single agents; in addition, the compounded herbicide has a prominent synergy effect on the broad-leaf weeds and the cyperus rotundus; besides, the weeds in the whole development period of crops can be prevented and killed after the herbicide is applied only for once; without influences on the after-reap crops, the compounded herbicide is ideal for the corn fields at present.
Description
Technical field
The present invention relates to technical field of pesticide, be specifically related to a kind of maize post-emergence compound herbicide.
Background technology
Corn is the important cereal crops of China, also is important forage crop.In recent years, along with the development of the industries such as livestock breeding, food processing, wine-making industry and biodiesel, the market demand of corn constantly increases.China's maize sown area reached 3994.9 ten thousand hectares in 2012, was only second to paddy rice, became second largest kind of plant, and also had the trend that increases.The weeds of corn field occur general, and are of a great variety.Occur seriously at Huang-Huai-Hai summer corn crop smothering, crop smothering generation area accounts for 82%～96% of this district's cultivated area, and wherein medium above hazard area reaches 64～66%.Maize at Seedling Stage is subjected to crop smothering the most serious, the corn growth middle and later periods weeds little on the impact of output.When Maize Seedling was subjected to weeds harm, plant was short and small, the bar spire yellow, causes the middle and later periods corn growth bad, Severe Reduction.Along with the development of agricultural cience and farming techniques, one of the applying as the saving of labor, save time of chemical herbicide, cost-effective strong well stimulation.The chemical control of corn field weed mostly after broadcasting before the seedling and seedling after early stage two critical periods carry out.At present, the corn herbicide kind is more, and it is happy that wherein the representative kind that Control Weeds in Maize Field is arranged has the beautiful farming of the former industry of Japanese stone.Behind in December, 2008 nicosulfuron preparation Patent expiry, nicosulfuron has obtained spread.But in extension process, find nicosulfuron to some broad leaved weed and nutgrass flatsedge, especially the not good problem of rhizome of nutgrass flatsedge preventive effect.
The halosulfuronmethyl weed killer herbicide is by the development of daily output chemical company, the sulfonylurea weed killer herbicide that Meng Shan develops, be widely used in the crops such as wheat, corn, paddy rice, sugarcane, lawn, be mainly used in preventing and kill off broad leaved weed and Sha Ke weeds, such as storehouse ear, Datura, artemisiifolia, Amaranthus retroflexus, flowerofanhour root or herb, knotweed, kitchen garden, black nightshade, Cassia tora, lead a cow, the rhizome of nutgrass flatsedge etc.Because its rapid metabolism in crop is harmless object, pretend thing safety.It can be used with Miao Houjun before seedling.It is all very low to human body and toxicity in fish, there is no " three cause " effect.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can prevent and kill off grassy weed, can prevent and kill off broad leaved weed and nutgrass flatsedge again, and respond well maize post-emergence compound herbicide.
In order to realize the foregoing invention purpose, the invention provides following technical scheme:
A kind of maize post-emergence compound herbicide is comprised of nicosulfuron and halosulfuronmethyl active ingredient, and the weight ratio of nicosulfuron and halosulfuronmethyl is 1:0.50-1:2.
As preferably, the weight ratio of nicosulfuron and halosulfuronmethyl is 7:10-1:1 in the complex weedicide of the present invention.
More preferably, the weight ratio of nicosulfuron and halosulfuronmethyl is 4:3 in the complex weedicide of the present invention.
On the other hand, the invention provides that the quality percentage composition of nicosulfuron and halosulfuronmethyl is 5～85% of described complex weedicide in the biological described complex weedicide.
As preferably, in the complex weedicide of the present invention, after two kinds of active components of nicosulfuron and halosulfuronmethyl are composite according to above-mentioned weight ratio, make the formulations of pesticide such as oil-suspending agent, wetting powder or water dispersible granules.
Synergy after being mixed with the co-toxicity coefficient method evaluation of Sun Yunpei, the result show nicosulfuron and halosulfuronmethyl in the composite co-toxicity coefficient of 1:0.50-2 ratio obviously greater than 120, reach remarkable synergistic effect, nicosulfuron is described, that halosulfuronmethyl is mixed in the 1:0.50-2 ratio is comparatively suitable, annual single broadleaf weed and nutgrass flatsedge are had significant synergies.
Security test test to corn shows, the composite cauline leaf processing of nicosulfuron halosulfuronmethyl, the ED of inhibition corn growth 10%
10=633.5774, the ED of inhibition weed growth 90%
90=147.8637, selectivity factor is 633.5774/147.8637=4.28〉2, think that this medicament has obvious selectivity, the nicosulfuron halosulfuronmethyl has good safety to corn.
Complex weedicide of the present invention shows by the field control effectiveness test in 2 years, and in 3～5 leaf phases of corn, weeds 2-5 leaf does not wait the phase, and corn has no symptom of chemical damage from the dispenser to the maturing stage, to corn safety.The preventive effect of weeds reached more than 80% in 10 days, reached more than 90% in 30 days, along with the increase of dosage, preventive effect obviously strengthens, and a dispenser can be controlled the weeds of crop in whole vegetative period, and not only herbicidal effect is remarkable, and environmentally friendly, on second stubble crop without impact.
Compared with prior art, complex weedicide of the present invention can be prevented and kill off grassy weed, can prevent and kill off broad leaved weed and nutgrass flatsedge again, to corn safety, and on succession crop without impact, have a good application prospect.
Embodiment
The invention discloses a kind of maize post-emergence compound herbicide that is comprised of nicosulfuron and two kinds of active components of halosulfuronmethyl, those skilled in the art can use for reference this paper content, suitably improve technological parameter and realize.Special needs to be pointed out is, all similarly replace and change apparent to those skilled in the art, and they all are deemed to be included in the present invention.Product of the present invention and application are described by preferred embodiment, the related personnel obviously can change or suitably change and combination methods and applications as herein described within not breaking away from content of the present invention, spirit and scope, realizes and use the technology of the present invention.
Below in conjunction with embodiment, further set forth the present invention:
Embodiment 1:Oil-suspending agent (the nicosulfuron: halosulfuronmethyl=1:1) for preparing complex weedicide of the present invention
7% nicosulfuron halosulfuronmethyl oil-suspending agent, 7% refers to that nicosulfuron and two kinds of active components of halosulfuronmethyl account for the percentage of gross weight.Get the 3.5kg nicosulfuron, the 3.5kg halosulfuronmethyl, 8kg Pluronic125, the 5kg propane diols, the 8kg xanthans, the 1kg methylated vegetable oil, water complements to 100kg.Pass through abundant mixing preparation, ball mill grinding, adjust, be packaged to be oil-suspending agent.
Embodiment 2:Wetting powder (the nicosulfuron: halosulfuronmethyl=4:3) for preparing complex weedicide of the present invention
70% nicosulfuron halosulfuronmethyl wetting powder, 70% refers to that nicosulfuron and two kinds of active components of halosulfuronmethyl account for the percentage of gross weight.Get the 40kg nicosulfuron, the 30kg halosulfuronmethyl, 6kg dispersant NNO, 3kg wetting agent K12, White Carbon black complements to 100kg.Through fully mixing, air-flow crushing, mixing, obtain wetting powder.
Embodiment 3:Water dispersible granules (the nicosulfuron: halosulfuronmethyl=7:10) for preparing complex weedicide of the present invention
85% nicosulfuron halosulfuronmethyl water dispersible granules, 85% refers to that nicosulfuron and two kinds of active components of halosulfuronmethyl account for the percentage of gross weight.Get the 35kg nicosulfuron, the 50kg halosulfuronmethyl, 7kg D-425,5kg EFW, 5kg ammonium sulfate, the 2kg polyethylene glycol, kaolin supplies 100%, obtains water dispersible granules through fully mixing, air-flow crushing, mixing, granulation, drying and screening.
Embodiment 4:Nicosulfuron and halosulfuronmethyl cauline leaf are processed the synergy toxicity and are measured
1, test objective
Under greenhouse experiment, adopt pot-culture method, the herbicidal effect of research nicosulfuron, halosulfuronmethyl binary built, and the synergy type after estimating the two different proportion and use with the co-toxicity coefficient method of Sun Yunpei are for the rational mixture of nicosulfuron and halosulfuronmethyl provides scientific basis.
2, experimental condition
2.1 for studying the thing corn variety: tuck in single No. 2
2.2 for examination weeds lady's-grass (Digitaria sanguinalis (Linn.) Scop.), green foxtail (Setaria viridis (L.) Beauv.), acalypha copperleaf (Acalypha australis L.), lamb's-quarters (Chenopodium album L.), the rhizome of nutgrass flatsedge (Cyperus rotundus L.) (upper one year the field seed of gathering, germination rate is more than 85%).
2.3 the cultivation of experimental condition and examination material
In the illumination cultivation chamber, carry out the cultivation of test material, temperature 25-35 ℃.Choosing diameter is 15cm, highly is the vinyon basin alms bowl of 15cm, and the permeable hole of 1cm diameter is beaten in the bottom of basin alms bowl.Permeable hole covers with double-deck filter paper, and the loam that the in advance preparation of packing in the alms bowl was sterilized soaks into soil with clear water from the bottom to the high 10cm of alms bowl place.During test, every kind of weed seed 30-40 grain is evenly put into basin, earthing 0.5cm should replenish the required moisture of growth between the weeds culture period.
2.4 other condition
With the regular moisturizing of mode (not watering in 2 days behind the medicine) of bottom infiltration, keep soil moisture.
3 experimental scheme
3.1 medicament
3.1.1 reagent agent
The former medicine of 95% nicosulfuron (Anhui Fengle Agricultural Co., Ltd);
The former medicine of 95% halosulfuronmethyl (Jiangsu Agricultural Hormone Engineering Technology Research Centre Co., Ltd.).
3.1.2 reagent agent liquid preparation
Take by weighing quantitative former medicine with electronic balance, add an amount of emulsifier, use acetone solution, with 0.1% the POLYSORBATE 80 aqueous solution above-mentioned former medicine is diluted to desired concn at last.
3.1.3 experimental scheme
3.1.3.1 the synergy of nicosulfuron and halosulfuronmethyl
Nicosulfuron, halosulfuronmethyl single dose and 5 nicosulfurons and halosulfuronmethyl mixture preparation are established respectively 5 dosage, and described ratio is the active component weight ratio of nicosulfuron and halosulfuronmethyl.Other establishes blank, and each test is processed and repeated 4 times.Treatment agent dosage sees table 1 for details.
Table 1 test is processed and test level (concentration ga.i./mu)
3.2 application method
3.2.1 application method
Process in 3 leaf phases of corn, the spraying of weeds 2-4 leaf phase cauline leaf.The spray medicine adopts the indoor crown-block type atomizing tester of adjustable speed, the conventional spray method in simulation field.Shower nozzle is Fan spray head, and model is the Teejer8002E type, 40 kg/acres of spray values.0.5 meter of spray height, 0.7 meter of spraying swath, leg speed 0.224 meter per second.Atomisation pressure 2.0 MPas, 697 liter/mins of flows.
3.2.2 spraying time and number of times
Tested in the corn 3-5 leaf phase and carry out reagent spray processing, dispenser 1 time.
4 investigation methods
The symptom of being injured of detail record corn and weeds after the dispenser, 20d behind the medicine carries out fresh weight and measures, and compares with control treatment, calculates the fresh weight preventive effect.
4.1 synergy assay method
Synergy type after result of the test is used with the co-toxicity coefficient method evaluation of Sun Yunpei.
According to SUN, Y-P(Sun Yun is abundant) method calculates the theoretical toxicity index of its actual toxicity index, mixture, co-toxicity coefficient.Take the concentration logarithm as X, damage by disease and insect preventive effect probit value is Y, asks regression equation.
Actual toxicity index=standard medicament LD
50The LD of/mixture
50* 100
Theoretical toxicity index=∑ (toxicity index of the reagent agent * percentage of this medicament active ingredient in mixture)
The actual toxicity index of co-toxicity coefficient=mixture/theoretical toxicity index * 100
In the test take nicosulfuron as the standard medicament.
Criterion: co-toxicity coefficient＜80 are antagonism, are summation action between 80-120,〉120 for synergistic effect.
5 results and analysis
5.1 the synergy of nicosulfuron and halosulfuronmethyl
5.1.1 nicosulfuron and halosulfuronmethyl are mixed to the fresh weight preventive effect of weeds, the results are shown in Table 2.
Table 2 nicosulfuron and halosulfuronmethyl are mixed behind the medicine 20d to the fresh weight preventive effect of weeds
Control efficiency is the mean value of four data in the table.
5.1.2 nicosulfuron and halosulfuronmethyl are mixed to the synergy of weeds
As shown in Table 2: medicament is to toxic action situation and the preventive effect of weeds.Calculate its virulence regression equation, LD separately by formula
50, actual toxicity index, theoretical toxicity index and co-toxicity coefficient.List in table 3.
Table 3: nicosulfuron and halosulfuronmethyl are mixed to the synergy of weeds
| Process | Regression equation | Correlation coefficient | LD 50 | Actual toxicity index | Theoretical toxicity index | Coefficient of synergism |
| A | Y=1.3412x +4.9735 | 0.9934 | 1.0466 | 100 | / | / |
| B | Y=0.8049x +4.5002 | 0.9895 | 4.1778 | 25.05 | / | / |
| C | Y=1.2283x +4.8637 | 0.9928 | 1.2911 | 81.06 | 85.01 | 95.35 |
| D | Y=1.3157x +5.1818 | 0.9928 | 0.7275 | 143.86 | 75.02 | 191.76 |
| E | Y=1.3760x +5.3462 | 0.9966 | 0.5603 | 186.79 | 62.53 | 298.72 |
| F | Y=1.3110x +5.0687 | 0.9889 | 0.8863 | 118.09 | 55.03 | 214.59 |
| G | Y=1.1882x +4.7964 | 0.9935 | 1.4837 | 70.54 | 50.03 | 141.00 |
By test as can be known, the co-toxicity coefficient of processing C, D, E, F, G is respectively: 95.35,191.76,298.72,214.59,141.00, and wherein the co-toxicity coefficient of D, E, F, G has synergistic effect greater than 120.Wherein with the co-toxicity coefficient of processing D, E, F, G obviously greater than 120, reach remarkable synergistic effect.
5.1.3 conclusion (of pressure testing)
By test as can be known, nicosulfuron, that halosulfuronmethyl is mixed in the 1:0.50-2 ratio is comparatively suitable, and annual single broadleaf weed and nutgrass flatsedge are had significant synergies.
6 overall merits
Shown by above synergy measurement result, nicosulfuron and halosulfuronmethyl the two with the composite best results of the ratio of 1:0.50-2.
Embodiment 5:The composite cauline leaf of nicosulfuron halosulfuronmethyl is processed the Security test test to corn
1, test objective:
Under greenhouse experiment, adopt pot-culture method, research nicosulfuron, halosulfuronmethyl binary built cauline leaf are processed the safety to corn, for the rational mixture of nicosulfuron and halosulfuronmethyl provides scientific basis.
2, experimental condition
2.1 for studying the thing corn variety: tuck in single No. 2
2.2 for examination weeds lady's-grass (Digitaria sanguinalis (Linn.) Scop.), green foxtail (Setaria viridis (L.) Beauv.), acalypha copperleaf (Acalypha australis L.), lamb's-quarters (Chenopodium album L.) (upper one year the field seed of gathering, germination rate is more than 85%).
2.3 the cultivation of experimental condition and examination material
In the illumination cultivation chamber, carry out the cultivation of test material, temperature 25-30 ℃.Choosing diameter is 15cm, highly is the vinyon basin alms bowl of 15cm, and the permeable hole of 1cm diameter is beaten in the bottom of basin alms bowl.Permeable hole covers with double-deck filter paper, and the loam that the in advance preparation of packing in the alms bowl was sterilized soaks into soil with clear water from the bottom to the high 10cm of alms bowl place.During test, 20, every kind weed seed 30-40 of corn seed grain is evenly put into basin earthing 0.5cm, put into the greenhouse and cultivate (25-30 ℃), should replenish the required moisture of growth between maize seedling and weeds culture period.Stay the seedling of 10 strain stalwartnesses after all sprouting, treat that maize seedling length to 3～4 leaves and weeds are long to process to dispenser in 3～5 o'clock.
2.4 other condition
With the regular moisturizing of mode (not watering in 2 days behind the medicine) of bottom infiltration, keep soil moisture.
3 experimental scheme
3.1 medicament
3.1.1 reagent agent
95% nicosulfuron sulphur swells former medicine (Anhui Fengle Agricultural Co., Ltd);
The former medicine of 95% halosulfuronmethyl (Jiangsu Agricultural Hormone Engineering Technology Research Centre Co., Ltd.).
3.1.2 reagent agent liquid preparation
Take by weighing quantitative former medicine with electronic balance, add an amount of emulsifier, use acetone solution, with 0.1% the POLYSORBATE 80 aqueous solution above-mentioned former medicine is diluted to desired concn at last.
3.2 application method
3.2.1 application method
Process in 3 leaf phases of corn, the spraying of weeds 2-4 leaf phase cauline leaf.The spray medicine adopts the indoor crown-block type atomizing tester of adjustable speed, the conventional spray method in simulation field.Shower nozzle is Fan spray head, and model is the Teejer8002E type, 40 kg/acres of spray values.0.5 meter of spray height, 0.7 meter of spraying swath, leg speed 0.224 meter per second.Atomisation pressure 2.0 MPas, 697 liter/mins of flows.
3.2.2 spraying time and number of times
Tested in the 3 leaf phases of corn and carry out reagent spray processing, dispenser 1 time.
4 investigation and computational methods
4.1 crop investigation
After the dispenser, investigation is respectively processed corn and is had or not symptom of chemical damage, if then detail record symptom of chemical damage, grade are arranged, and behind the medicine 20 days, measure and respectively process the corn fresh weight, calculate the fresh weight inhibiting rate, with the safety of clear and definite test medicine to corn.
4.2 weeds investigation
The symptom of being injured of detail record weeds (such as growth inhibition, chlorosis, deformity etc.) after the dispenser, behind medicine 20 days, weeds acrial part fresh weight was respectively processed in weighing, calculated the fresh weight preventive effect of weeds.
4.3 computational methods
With DPS software the logarithm value of drug dose and the probability value of corn fresh weight inhibiting rate are carried out regression analysis, the dosage ED when calculating correlation coefficient and suppressing crop 10%
10, and suppress weeds 90%ED
90, obtain selectivity index.
Selectivity index=ED
10/ ED
90
5 results and analysis
5.1 nicosulfuron nitre sulphur ketone cauline leaf is processed the safety to corn
The safety evaluatio standard sees Table 4, observes in 3 days after the dispenser, and nicosulfuron halosulfuronmethyl high concentration 1080mg/kg processes indivedual corn lobus cardiacus distortions, and growth is suppressed, and low concentration is processed the corn growth normal; After the dispenser 7-12 days, it is normal that low concentration is processed the corn growing way, and 1080mg/kg processes corn and also slowly recovers.20 days 85% nicosulfuron halosulfuronmethyl oil-suspending agents see Table 5 to the inhibitory action of corn after the dispenser.
Table 4: activity of weeding and crop safety ocular estimate evaluation criterion
| Phytotoxicity (%) | The comprehensive comment of activity of weeding is (to influence degrees such as plant inhibition, deformity, albefaction, death | The comprehensive comment of crop safety is (to influence degrees such as plant inhibition, deformity, albefaction, death |
| 0 | With contrast, non-activity | With contrast, without impact, safety |
| 10 | Slightly influential, activity is very low | Slightly influential, poisoning is very light |
| 20－40 | Influential, active low | Influential, poisoning is obvious |
| 50－70 | Obviously impact growth has activity | Obviously impact growth, poisoning is serious |
| 80 | Have a strong impact on growth, Mortality | Have a strong impact on growth, poisoning is more serious |
| 90 | Have a strong impact on growth, most of dead, remaining plant is few, and is active fine | Have a strong impact on growth, most of dead, poisoning is very serious |
| 95 | Have a strong impact on growth, plant is substantially dead, and remaining plant seldom, and is active fine | Plant is substantially dead, and poisoning is very serious |
| 100 | All dead | All dead |
Table 5:85% nicosulfuron halosulfuronmethyl water dispersible granules (WG) is to the inhibitory action of corn
Table 6:85% nicosulfuron halosulfuronmethyl water dispersible granules (WG) is to the fresh weight preventive effect of weeds
This medicament calculates its virulence regression equation, LD respectively to toxic action situation and the preventive effect of weeds by formula as shown in Table 6
50, list in table 7.
Table 7: virulence regression equation and LD
50
| Process | Regression equation | Correlation coefficient | LD 50 | 95% confidence interval |
| A | Y=2.6104+0.6174x | 0.9960 | 47.7440 | 41.5264－ 54.0394 |
As shown in Table 7: the LD of 85% nicosulfuron halosulfuronmethyl water dispersible granules (WG)
50For: 47.6937,95% confidence intervals are 41.4710-53.9938.
5.2 nicosulfuron halosulfuronmethyl cauline leaf is processed the selectivity index to corn and weeds
By table 5, table 6, try to achieve the ED that suppresses corn growth 10% by DPS software
10=633.5774, the ED of inhibition weed growth 90%
90=147.8637, selectivity factor is 633.5774/147.8637=4.28〉2, think that this medicament has obvious selectivity, can carry out field control effectiveness test.
6 overall merits
6.1 this result of the test shows, nicosulfuron halosulfuronmethyl cauline leaf is processed high concentration and is processed and can cause corn yellow, indivedual plant distortion to corn, and it is normal that other concentration is processed corn growth.
6.2 the nicosulfuron halosulfuronmethyl has good control efficiency to weeds by Toxicity Determination as can be known.
Embodiment 6:Complex weedicide field control effectiveness test of the present invention
Complex weedicide of the present invention shows by the field control effectiveness test in 2 years, in 3～5 leaf phases of corn, weeds 1～5 leaf does not wait the phase, utilize 7% nicosulfuron halosulfuronmethyl of the present invention (3.5% nicosulfuron+3.5% halosulfuronmethyl) oil-suspending agent dosage 80,100,120,150 milliliters/mu, being watered 40 kg/acres sprays, 10, the range estimation corn safety of 30 days and maturing stage and weeds preventive effect, surveyed all preventive effects, result such as following table in 10,30 days:
By range estimation, corn has no symptom of chemical damage from the dispenser to the maturing stage, to corn safety.100 milliliters/mu of preventive effects of weeds reached more than 80% in 10 days, reached more than 90% in 30 days, increase along with dosage, preventive effect obviously strengthens, can reach good herbicidal effect 100 milliliters/mu of corn fields, with wherein a kind of active ingredient comparison of independent use, enlarged the herbicide spectrum, broad leaved weed and nutgrass flatsedge are had obvious synergistic effect.A dispenser can be controlled the weeds of crop in whole vegetative period, and not only herbicidal effect is remarkable, and environmentally friendly, and is without impact, little to the pollution of environment on second stubble crop, to people, animal, birds and beneficial organism safety, is conducive to keep ecological balance.In addition, weed killer herbicide of the present invention adopts physical method processing, and production technology is simple, and three-waste free discharge in the production process has no adverse effects to ecotope.It is the desirable complex weedicide of present control efficiency.
The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a maize post-emergence compound herbicide is characterized in that, is comprised of nicosulfuron and two kinds of active components of halosulfuronmethyl, and the weight ratio of nicosulfuron and halosulfuronmethyl is 1:0.50-1:2.
2. complex weedicide according to claim 1 is characterized in that, the weight ratio of nicosulfuron and halosulfuronmethyl is 7:10-1:1.
3. complex weedicide according to claim 1 is characterized in that, the weight ratio of nicosulfuron and halosulfuronmethyl is 4:3.
4. complex weedicide according to claim 1 is characterized in that, the quality percentage composition of nicosulfuron and halosulfuronmethyl is 5～85% of described complex weedicide.
5. complex weedicide according to claim 1 is characterized in that, described complex weedicide is oil-suspending agent, wetting powder, water dispersible granules.
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Cited By (10)
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| CN103766366A (en) * | 2013-12-09 | 2014-05-07 | 广东中迅农科股份有限公司 | Corn field weeding composition with synergistic effect |
| CN103766365A (en) * | 2013-12-09 | 2014-05-07 | 广东中迅农科股份有限公司 | Corn field weeding composition |
| CN104082328A (en) * | 2014-06-26 | 2014-10-08 | 广东中迅农科股份有限公司 | Post-emergence herbicide for cornfield |
| CN104397003A (en) * | 2014-12-03 | 2015-03-11 | 联保作物科技有限公司 | Weeding composition and preparation thereof |
| CN104686553A (en) * | 2013-12-05 | 2015-06-10 | 南京华洲药业有限公司 | Mixed herbicide containing flazasulfuron and halosulfuron-methyl |
| CN104839184A (en) * | 2015-04-18 | 2015-08-19 | 广东中迅农科股份有限公司 | Pesticide composition containing halosulfuron-methyl, aminopyralid and nicosulfuron |
| CN105475325A (en) * | 2016-01-27 | 2016-04-13 | 陕西上格之路生物科学有限公司 | Ternary weeding composite containing halosulfuron-methyl |
| CN105557727A (en) * | 2015-12-24 | 2016-05-11 | 安徽美兰农业发展股份有限公司 | Nicosulfuron, atrazine and halosulfuron-methyl compound dispersible oil suspending agent and preparation method thereof |
| CN106577716A (en) * | 2016-11-30 | 2017-04-26 | 广东中迅农科股份有限公司 | Weeding composition containing isoxaflutole, nicosulfuron and halosulfuron-methyl |
| CN107047599A (en) * | 2017-03-21 | 2017-08-18 | 佛山市盈辉作物科学有限公司 | A kind of herbicidal composition for including halosulfuronmethyl, nicosulfuron and the different monooctyl ester of fluroxypyr |
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Cited By (12)
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| CN104686553A (en) * | 2013-12-05 | 2015-06-10 | 南京华洲药业有限公司 | Mixed herbicide containing flazasulfuron and halosulfuron-methyl |
| CN104686553B (en) * | 2013-12-05 | 2016-12-07 | 南京华洲药业有限公司 | A kind of mixed herbicide containing flazasulfuron Yu halosulfuronmethyl |
| CN103766366A (en) * | 2013-12-09 | 2014-05-07 | 广东中迅农科股份有限公司 | Corn field weeding composition with synergistic effect |
| CN103766365A (en) * | 2013-12-09 | 2014-05-07 | 广东中迅农科股份有限公司 | Corn field weeding composition |
| CN104082328A (en) * | 2014-06-26 | 2014-10-08 | 广东中迅农科股份有限公司 | Post-emergence herbicide for cornfield |
| CN104397003A (en) * | 2014-12-03 | 2015-03-11 | 联保作物科技有限公司 | Weeding composition and preparation thereof |
| CN104397003B (en) * | 2014-12-03 | 2016-08-24 | 联保作物科技有限公司 | A kind of Herbicidal combinations and preparation thereof |
| CN104839184A (en) * | 2015-04-18 | 2015-08-19 | 广东中迅农科股份有限公司 | Pesticide composition containing halosulfuron-methyl, aminopyralid and nicosulfuron |
| CN105557727A (en) * | 2015-12-24 | 2016-05-11 | 安徽美兰农业发展股份有限公司 | Nicosulfuron, atrazine and halosulfuron-methyl compound dispersible oil suspending agent and preparation method thereof |
| CN105475325A (en) * | 2016-01-27 | 2016-04-13 | 陕西上格之路生物科学有限公司 | Ternary weeding composite containing halosulfuron-methyl |
| CN106577716A (en) * | 2016-11-30 | 2017-04-26 | 广东中迅农科股份有限公司 | Weeding composition containing isoxaflutole, nicosulfuron and halosulfuron-methyl |
| CN107047599A (en) * | 2017-03-21 | 2017-08-18 | 佛山市盈辉作物科学有限公司 | A kind of herbicidal composition for including halosulfuronmethyl, nicosulfuron and the different monooctyl ester of fluroxypyr |
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