CN108432750A - A kind of big granula of rice terrace weeding and preparation method thereof - Google Patents
A kind of big granula of rice terrace weeding and preparation method thereof Download PDFInfo
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- CN108432750A CN108432750A CN201810211659.XA CN201810211659A CN108432750A CN 108432750 A CN108432750 A CN 108432750A CN 201810211659 A CN201810211659 A CN 201810211659A CN 108432750 A CN108432750 A CN 108432750A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/10—Sulfones; Sulfoxides
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
- A01N43/78—1,3-Thiazoles; Hydrogenated 1,3-thiazoles
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
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- Environmental Sciences (AREA)
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention provides a kind of big granulas of paddy field weed-killer, by weight percentage, including 1% -50% mefenacet, 1% -25% benzobicylon, 0.5% -25% part of surfactant, 1% -30% oiliness water surface spreader-sticker, 10% -50% solid core core material, 1% -20%, 10% -50% filler of adsorbent.The big granula of paddy field weed-killer of the present invention has used floatability material, powder can be swum on the water surface, it can voluntarily be spread under the action of wind-force and itself auxiliary agent, high performance dispersant has been introduced in formula, medicament active ingredient can diffuse to full field in a short time after dispenser, lasting medicine, saving of work and time.
Description
Technical field
The present invention relates to herbicide fields, and in particular to a kind of big granula of rice terrace weeding and preparation method thereof.
Background technology
Rice is the important grain in China and industrial crops, and cultivated area is very wide, and act is occupied in national daily life
The status of sufficient weight.Rice commodity rate is influenced by many factors such as planting conditions and management measures, and what is solved at present is main
Approach is to cultivate improved seeds, promote Application of Herbicides and improve mechanized harvesting.
Currently, herbicide is closed before rice terrace seedling mainly uses amides single dose or the complex preparation with oxadiazon, but
Due to use for years so that each region Weed Resistance enhance, and in amides alachlor, Acetochlor to different water
The difference in rice varieties and dispenser period, it is also different to the safety of rice.In addition these Pesticide use time limits are longer, dosage
Increase year by year, to cause rice terrace original weak tendency grass system being just gradually transformed into surging grass system；In addition, since oxadiazon has relatively by force
Soil eluviation, easily enter underground water, pollute water system.
With the raising of economic fast development and living standards of the people, requirement of the people to paddy quality and yield is more next
It is higher.There is an urgent need to while reducing the production loss caused by disease, crop smothering to the greatest extent, reduce chemistry for the production of green crop
The dosage and residual of pesticide, keep the natural quality of rice.
In addition, traditional medication, which needs peasant to carry on the back heavy sprayer to field shoulder, carries out dispenser, labor intensity is big.Therefore, it grinds
System exploitation novel labour saving seems particularly important and urgent to the pesticide control of different rice varieties safety.
Benzobicylon has the function of strong inhibition HPPD, and is allowed to that albinism is presented, between rice and weeds
Selectivity it is high, to annual broadleaf weeds such as paddy land weeds such as Monochoria vaginalis, Procumbent Falsepimpernel class；Firefly Lin, Herba Cyperi Glomerati, needle spikesedge herb etc.
Ju Mang cyperus irias section weeds；The difficulties such as fishscale bamboo grass, oryza-like chilled grass, fake rice, agrostis stolonifera, potamogeton grass are cut weeds etc. miscellaneous extensively
Grass is effective.Especially there is tall and erect imitate to the worst weeds firefly Lins such as Ju Mang cyperus irias sections.
Mefenacet is selective inner-adsorption conduction-type herbicide, is mainly absorbed by bud scale and root, through xylem and
Bast is conducted to the young shoot of weeds and tender leaf, and weed growth point cell division is prevented to extend, and ultimately causes plant death.Benzene thiophene
Acyl grass amine can effectively prevent and kill off grassy weed, have special efficacy in rudiment to 2 leaf phases to barnyard grass, to moleplant seed, needle spikesedge herb, wartwort, duck
Tongue grass, mexicana, special-shaped nutgrass flatsedge, flat nutgrass flatsedge, cyperus iria and aquatic nutgrass flatsedge also has certain preventive effect for many years.
Invention content
The object of the present invention is to provide a kind of big granulas of rice terrace weeding and preparation method thereof.
The technical solution adopted by the present invention is as follows：
A kind of big granula of rice terrace weeding, is made of by weight percentage following components：Mefenacet 1-50%,
Benzobicylon 5%-25%, surfactant 0.5%-25%, adsorbent 1%-20%, oiliness water surface spreader-sticker 1%-
30%, solid core core material 10%-50% of the proportion less than 1, filler polishing to 100%.
The mass ratio of further scheme, the mefenacet and benzobicylon is 20-40:5-25.
The mass ratio of further scheme, the mefenacet and benzobicylon is 30:15.
Further scheme, the surfactant are selected from alkyl bitter edible plant sulfonate, alkylbenzene sulfonate, dialkylsulfosuccinic
Hydrochlorate, naphthalenesulfonic acid-formaldehyde condensate, polycarboxylate anion, lignosulfonates, alkylamide polyoxyethylene ether, octyl naphthalene
Sodium sulfonate, alkyl phenol polyoxyethylene ether phosphate, quaternary ammonium salt cationic, gathers polyoxyethylene polyoxypropylene base ether block copolymers
It is ethylene oxide rilanit special, aliphatic alcohol polyethenoxy ester, alkylaryl sulfonates, ethylene oxide propylene oxide block polyether, sweet
Oil and fat acid esters, phenyl phenol polyethenoxy ether, tween, alkyl phenol polyoxyethylene ether, nonylphenol polyoxyethylene ether, the polyoxyethylene moon
Osmanthus ether, lauroyl propyl betaine, sorbierite polyoxy ether, polyoxyethylene alkyl ether, polyethylene oxide alkylbenzene
One or more of based polyalcohol, fatty alcohol polyoxyethylene ether.
Further scheme, the oiliness water surface spreader-sticker are selected from paraffin, alkyl fatty esters, glyceride, animal tallow, plant
One or more of object oil, alkyl polyoxyethylene ether；The adsorbent is white carbon；Filler includes potassium chloride, ammonium sulfate, sulphur
Sour sodium.
The grain size of further scheme, the solid core core material is 0.1-1000 microns.
Further scheme, the solid core core material are selected from float stone, hollow glass floating bead, false burning float stone, false burning frog stone, vacation
Burn one or more of black credit rock and calcination perlite.
Another goal of the invention of the present invention is to provide a kind of preparation method of above-mentioned big granula of rice terrace weeding, such as
Under：
(1) mefenacet, benzobicylon, surfactant and filler are uniformly mixed according to a ratio, then through air-flow
Female powder is obtained after pulverizer ultramicro grinding；
(2) it uses adsorbent to adsorb oiliness water surface spreader-sticker uniform, obtains powder；
(3) female powder of step (1), the powder of step (2) and solid core core material double helix taper is poured into successively to mix
10-30min is mixed in conjunction machine；Suitable quantity of water is added through extruder grain, finally dry the big granula of weeding.
The technical indicator of the big granula of weeding prepared by the present invention is：
Appearance：Column solid particle
Mefenacet content：1%-50%
Benzobicylon content：1%-25%
Floatability, %：100
Moisture content, %：≤3
Disintegration time, s：≤300
Diffusion length, min/m：≥1
Diffusion length, m：≥5
Big granula provided by the invention is provided simultaneously with the function of water dispersion granule and floating on water agent, especially suitable for water
Control of insect, weeding and the sterilization of field plant.Its pharmacological property depend on pesticide component therein, floatability by surfactant,
Oiliness water surface spreader-sticker and filler.When in use, the water soluble bag equipped with powder only need to directly be thrown along ridge and apply water by dispenser personnel
Face, people throw the water soluble bag dissolving in 2-3 minute after applying without going to the field, powder separate out immediately, radial to collapse rapidly
Solution makes active constituent rapidly and uniformly be distributed to entirely at random to all directions floating, extension, and descending lasting disintegration
The water surface forms one layer of medicine film in the water surface, so that entire water layer is become the suspension of medicament, to make drug effect fully be sent out
It waves.Its preventive effect is stablized, and poisoning will not occur, Security of rice is high, the swollen packet defect of effervescent tablet will not occurs, be more convenient for wrapping
Fill storage and transportation.
So the big granula of the present invention revolutionizes the insecticide-applying way of paddy field weeding, it is to comply with current rural land operation
Mode is changed, the big transfer of rural laborer, the epoch product that is increasingly taken seriously of value of labour power.As long as being shed in ridge, nothing
It need to go to the field, this characteristic of pesticide floating on water water dispersible granules has liberated labour significantly, and heavy paddy field weeding is allowed to work
Become light, simple.In today of rural laborer's serious loss, using the big granula of pesticide floating on water can save dispenser at
This, it is saving of labor, time saving, laborsaving, it is with the obvious advantage.It is believed that the listing of floating on water water dispersible granules shortly after, will really make rice
Agriculture is accomplished easily to shed, happy dispenser, a weeding, safe and efficient.
Specific implementation mode
Embodiment 1：
Mefenacet：40%, benzobicylon：5%, lignosulfonates：4%, alkylamide polyoxyethylene ether：
10%, hollow glass micropearl：25%, white carbon：10%, potassium chloride complements to 100%.
Preparation method is as follows：(1) mefenacet, benzobicylon, surfactant and filler are mixed according to the ratio
It is even, then female powder is obtained after airslide disintegrating mill ultramicro grinding；
(2) it uses adsorbent to adsorb oiliness water surface spreader-sticker uniform, obtains powder；
(3) female powder of step (1), the powder of step (2) and solid core core material double helix taper is poured into successively to mix
10-30min is mixed in conjunction machine；Suitable quantity of water is added through extruder grain, finally dry the big granula of weeding.
Embodiment 2：Mefenacet：35%, benzobicylon：10%, naphthalenesulfonic acid-formaldehyde condensate：6%, alkyl fat
Fat acid esters：12%, float stone：30%, white carbon：8%, ammonium sulfate complements to 100%.
The preparation method is the same as that of Example 1.
Embodiment 3：Mefenacet：30%, benzobicylon：15%, polycarboxylate anionoid：5%, vegetable oil：
10%, false to burn float stone：40%, white carbon：10%, sodium sulphate complements to 100%.
The preparation method is the same as that of Example 1.
Embodiment 4：Mefenacet：25%, benzobicylon：20%, alkylaryl sulfonates：3%, glyceryl alcohol：
15%, false to burn float stone：27%, white carbon：15%, sodium chloride complements to 100%.
The preparation method is the same as that of Example 1.
Embodiment 5：Mefenacet：20%, benzobicylon：25%, nonylphenol polyoxyethylene ether：3%, tallow
Fat：7%, false to burn silica：20%, white carbon：Complement to 100%.
The preparation method is the same as that of Example 1.
Embodiment 6：Combined Trials
95% mefenacet active compound of reagent agent (offer of active compound portion of Anhui Fengle Agricultural Co., Ltd)；98% pair
Ring sulphur humulone active compound (offer of active compound portion of Anhui Fengle Agricultural Co., Ltd).
Weigh quantitative active compound with electronic balance, suitable emulsifier be added, with acetone solution, finally with 0.1% soil
Above-mentioned active compound is diluted to required concentration by warm 80 aqueous solutions.
The synergy of mefenacet and benzobicylon
Mefenacet, benzobicylon single dose and 5 mefenacets and benzobicylon mixture preparation are set 5 respectively
A dosage, separately sets blank control, and each test process is repeated 4 times.Treatment agent dosage refers to table 1.
1 test process of table and test level (dosage g a.i./667 ㎡)
Test method:In high 6cm, the built-in quantitative soil of polypots of diameter 9cm will be for trying 15-20, target weeds seed
Sowing is placed on culture in greenhouse after covering the fine earth of 0.5-1cm thickness, spraying treatment is carried out when weeds grow germination in polypots,
Per alms bowl spraying liquid 1ml, often processing is repeated 4 times, and is set without chemicals treatment as control.Material is tried after processing is placed in culture in greenhouse,
The growing state of routine observation target weeds claims aerial part fresh weight after test process 20d, and medicine is evaluated with target fresh weight inhibition rate
Toxicity action of the agent to target weeds.
Investigation method：Claim aerial part fresh weight after test process 20d, calculates effect of chemical control (%).Test result is used
Synergy type after co-toxicity coefficient method evaluation abundant Sun Yun is mixed.According to SUN, Y-P (Sun Yunpei) method calculates its practical poison
Power index, mixtures theoretical toxicity index, co-toxicity coefficient.It is X with log concentration, pest and disease damage preventive effect probit value is Y, asks recurrence side
Journey.
Actual toxicity index=standard agent LD50The LD of/mixture50×100
Theoretical toxicity index=∑ (percentage of the medicament active ingredient of the toxicity index of reagent agent × in mixture)
Actual toxicity index/theoretical toxicity index × 100 of co-toxicity coefficient=mixture
Using mefenacet as standard agent in experiment.
Criterion：Co-toxicity coefficient<80 be antagonism, is summation action between 80-120,>120 make for synergy
With.
The synergy of mefenacet and benzobicylon is as shown in table 2 below：
2 mefenacet of table and benzobicylon mixture, fresh weight preventive effects of the 20d to weeds after medicine
Control effect is the average value of four data in table.
As shown in Table 2：Toxic action situation and preventive effect of the medicament to weeds.Its respective toxicity regression is calculated by formula
Equation, LD50, actual toxicity index, theoretical toxicity index and co-toxicity coefficient.It is listed in table 3.
Table 3：Mefenacet and synergy of the benzobicylon mixture to weeds
| Processing | Regression equation | Related coefficient | LD50 | Actual toxicity index | Theoretical toxicity index | Coefficient of synergism |
| A | Y=1.7250x+3.1262 | 0.9954 | 12.1976 | 100.0 | ||
| B | Y=1.6888x+3.7690 | 0.9992 | 5.3567 | 227.7 | ||
| C | Y=1.6361x+3.7466 | 0.9959 | 5.8351 | 209.0 | 114.2 | 183.0 |
| D | Y=1.7879x+7.1153 | 0.9948 | 5.4664 | 223.1 | 128.4 | 173.8 |
| E | Y=2.2596x+3.6496 | 0.9790 | 3.9596 | 308.1 | 142.6 | 216.1 |
| F | Y=1.7658x+3.6587 | 0.9970 | 5.7491 | 212.2 | 156.8 | 135.3 |
| G | Y=1.7779x+3.6220 | 0.9912 | 5.9573 | 204.8 | 171.0 | 119.8 |
By experiment it is found that the coefficient of synergism of processing C, D, E, F, G are respectively：183.0、173.8、216.1、135.3、
119.8, the coefficient of synergism of processing C, D, E, F are more than 120, and there is synergistic effect, the coefficient of synergism for especially handling E to be up to
216.1, there is notable synergistic effect.
By experiment it is found that mefenacet presses 25-40 with benzobicylon：20-5 ratio mixtures are more suitable, to standing grain
Undergraduate course and broad leaved weed all have significant synergies.
Embodiment 7：Field experiment
Spraying time：The 5-7 days rice period of seedling establishments after transplanting, specific time are dispenser in afternoon on July 2 in 2015.
Dispenser condition：Fine day on the day of dispenser, 25 DEG C~32 DEG C of temperature.
Dispenser dosage and mode：100-120 grams/acre of formulation rate, sheds at 20-30 per acre., paddy field keeps water layer when dispenser
It 5-7 centimetres, is retained 7 days after dispenser.
Test group：It is divided into wettable powder test group, big granula test group；Wherein, big granula experimental group is according to 100g/
667m2Dose uniformity spread fertilizer over the fields in the embodiment of the present invention 1 and obtained to contain the 45% big granula of mefenacet benzobicylon, benzene
Thiophene acyl grass amine single dose test group is according to 50% mefenacet wettable powder 60g/667m2It uniformly spreads fertilizer over the fields, benzobicylon single dose
Test group is according to 25% benzobicylon wettable powder 60g/667m2Dose spray.
Blank control group：Clear water is sprayed according to same dosage.
Test method：Each test group and blank control group are repeated 4 times, and each test group and blank control group account for respectively
With experimental plot plot area 40m2, cell random alignment.Before dispenser, in the cell of each test group and blank control group, with
Machine takes at 4 points；Investigation weeds type, leaf age and radix respectively.After dispenser 15d, 30d, each test group and blank pair are recorded respectively
According to a group cell survival number (strain/m2), calculate Weed-control effect (%)；After dispenser 30d, extracts weeds and weigh fresh weight (g/m2), it calculates fresh
Weight preventive effect (%).
The herbicidal effect of each test group is shown in Table 4.
Each dosage form herbicidal effect of 4 mefenacet benzobicylon of table
As shown in Table 4, after dispenser 15d, the embodiment of the present invention 1 is obtained to contain 45% mefenacet benzobicylon water
Face floats big granula to the preventive effect of grass family and broad leaved weed 94% or more, containing 50% mefenacet wettable powder to standing grain
The preventive effect of undergraduate course and broad-leaved weeds is respectively 73.5% and 47.6%.25% benzobicylon suspending agent is to grass family and broad-leaved
The preventive effect of weeds is respectively 50.9% and 71.5%, compared with each single dose, not only increases the preventive effect to weeds, while also expanding
Big herbicide controlling spectrum, has pole significant difference (P ＜ 0.01).
After dispenser 30d, the embodiment of the present invention 1 is obtained to contain 45% mefenacet benzobicylon water dispersible granules pair
95% or more, it is miscellaneous to grass family and broad-leaved to contain 50% mefenacet wettable powder for the preventive effect of grass family and broad leaved weed
The preventive effect of grass is respectively 78.6% and 54.3%.25% benzobicylon suspending agent is to the preventive effect point to grass family and broad leaved weed
Not Wei 57.9% and 79%, compared with each single dose, not only increase the preventive effect to weeds, herbicide controlling spectrum has also been enlarged in colleague, has
Pole significant difference (P ＜ 0.01).
Dispenser 30d weighs fresh weight, the bicyclic sulphur obtained containing 45% mefenacet of the embodiment of the present invention 1 after extracting weeds
The big granula of humulone is 97.8% to the preventive effect of grass family and broad leaved weed, containing 50% mefenacet wettable powder to grass family
Exist to the preventive effect of grass family and broad leaved weed in 67.5%, 25% benzobicylon suspending agent with the preventive effect of broad leaved weed
68.5%, compared with each single dose, the fresh weight preventive effect to weeds is not only increased, while herbicide controlling spectrum has also been enlarged, had extremely significantly
Difference (P ＜ 0.01).
In summary test result shows that the big granula of mefenacet benzobicylon can wet-milling with mefenacet
Agent, benzobicylon wettable powder are compared, and are improved to preventive effect, the fresh weight preventive effect of weeds in field, to field crops safety.
Embodiment 8：Field experiment
Dispenser place：Nanjing Qixia District rice terrace, preceding stubble are Rapeseed Field.Experimental field fertility uniformity, ground
Gesture is flat.Soil is partially sticky, middle fertility, and humidity is moderate.Rice (Wu-Yu-Geng 3) is sowed, rice terrace annual gramineae is miscellaneous
Grass mainly has barnyard grass, moleplant seed, lady's-grass etc., and broad leaved weed, main Monochoria vaginalis, dayflower, mexicana, Procumbent Falsepimpernel etc., distribution is
It is even.
Spraying time：In 3~4 leaf phase of direct seading rice, the specific time is dispenser in afternoon on June 20 in 2016.
Dispenser condition：Fine day on the day of dispenser, 25 DEG C~33 DEG C of temperature.
Dispenser dosage and mode：100-120 grams/acre of formulation rate, sheds at 20-30 per acre., paddy field keeps water layer when dispenser
It 5-7 centimetres, is retained 7 days after dispenser.
Test group：It is divided into a wettable powder test group, a suspending agent test group, one big granula test group；Wherein, greatly
According to 100g/667m in granula test group2Dose uniformity spread fertilizer over the fields in the embodiment of the present invention 3 it is obtained containing 45% benzene thiophene acyl grass
The big granula of amine benzobicylon, wettable powder test group 1 is according to 50% mefenacet 60g/667m2It uniformly spreads fertilizer over the fields, 25%
Benzobicylon suspending agent 60g/667m2Dose spray (commercially available).
Blank control group：Clear water is sprayed according to same dosage.
Test method：Each test group and blank control group are repeated 4 times, and each test group and blank control group account for respectively
With experimental plot plot area 35m2, cell random alignment.Before dispenser, in the cell of each test group and blank control group, with
Machine takes at 4 points；Investigation weeds type, leaf age and radix respectively.After dispenser 15d, 30d, each test group and blank pair are recorded respectively
According to a group cell survival number (strain/m2), calculate Weed-control effect (%)；After dispenser 30d, extracts weeds and weigh fresh weight (g/m2), it calculates fresh
Weight preventive effect (%).
The herbicidal effect of each test group is shown in Table 5.
Each dosage form herbicidal effect of 5 mefenacet benzobicylon of table
In conjunction with table 5 it is found that after dispenser 15d, the embodiment of the present invention 3 is obtained to contain 45% mefenacet benzobicylon
Suspending agent, 97% or more, compared with single dose, improves the preventive effect to weeds to the preventive effect of grass family and broad leaved weed, expands
Big herbicide controlling spectrum, has pole significant difference (P ＜ 0.01)；
After dispenser 30d, the big granula of mefenacet benzobicylon weeding is to grass family made from the embodiment of the present invention 3
Preventive effect with broad leaved weed is 100%, compared with single dose, improves the preventive effect to weeds, expands herbicide controlling spectrum, has pole
Significant difference (P ＜ 0.01).
Dispenser 30d weighs fresh weight after extracting weeds, and mefenacet benzobicylon is big made from the embodiment of the present invention 3
Granula agent weighs comprehensive fresh weight effect 100% to grass family and preventing and kill off for broad leaved weed, compared with single dose, improves to weeds
Preventive effect, expand herbicide controlling spectrum, have pole significant difference (P ＜ 0.01).
Mefenacet benzobicylon complex composition provided by the invention is cut weeds field trial
According to the method for embodiment 1,3, mefenacet benzobicylon compounding group made from embodiment 2,4,5 is detected
It closes object and after dispenser 30d, the preventive effect to weeds, fresh weight preventive effect and synthesis is improved compared with single dose to the preventive effect of weeds in field
Fresh weight preventive effect has significant difference (P ＜ 0.05).Each test group is to rice early growth and late growth without bad shadow
It rings, it is not notable (P ＞ 0.05) with the difference of blank control group, therefore, mefenacet made from the embodiment of the present invention 2,4,5
Benzobicylon Herbicidal combinations are to rice safety.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of big granula of rice terrace weeding, it is characterised in that：It is made of by weight percentage following components：Benzene thiophene acyl grass
Amine 1-50%, benzobicylon 5%-25%, surfactant 0.5%-25%, adsorbent 1%-20%, oiliness water surface spreader-sticker 1%-
30%, solid core core material 10%-50% of the proportion less than 1, filler polishing to 100%.
2. a kind of big granula of rice terrace weeding according to claim 1, it is characterised in that：The mefenacet with
The mass ratio of benzobicylon is 25-40：20-5.
3. a kind of big granula of rice terrace weeding according to claim 2, it is characterised in that：The mefenacet with it is double
The mass ratio of ring sulphur humulone is 30:15.
4. a kind of big granula of rice terrace weeding according to claim 1, it is characterised in that：The surfactant choosing
It is cloudy from alkyl bitter edible plant sulfonate, alkylbenzene sulfonate, dialkyl sulfosuccinates, naphthalenesulfonic acid-formaldehyde condensate, polycarboxylate
Ion, lignosulfonates, alkylamide polyoxyethylene ether, octyl sodium naphthalene sulfonate, polyoxyethylene polyoxypropylene base ether block are total
Polymers, alkyl phenol polyoxyethylene ether phosphate, quaternary ammonium salt cationic, Crodaret, aliphatic alcohol polyethenoxy ester,
Alkylaryl sulfonates, ethylene oxide propylene oxide block polyether, fatty acid glyceride, phenyl phenol polyethenoxy ether, tween, alkane
Base phenol polyethenoxy ether, nonylphenol polyoxyethylene ether, polyoxyethylene laurel ether, lauroyl propyl betaine, sorbierite polyoxy
Ether, polyoxyethylene alkyl ether, polyethylene oxide alkyl phenyl polymer, one kind in fatty alcohol polyoxyethylene ether or
It is several.
5. a kind of big granula of rice terrace weeding according to claim 1, it is characterised in that：The oiliness water surface is opened up
Agent is selected from one or more of paraffin, alkyl fatty esters, glyceride, animal tallow, vegetable oil, alkyl polyoxyethylene ether.
6. a kind of big granula of rice terrace weeding according to claim 1, it is characterised in that：The solid core core material
Grain size be 0.1-1000 microns.
7. a kind of big granula of rice terrace weeding according to claim 1, it is characterised in that：The solid core core material
One or more of burn black credit rock selected from float stone, glass pearl, false burning float stone, false burning frog stone, vacation and be calcined perlite.
8. such as a kind of preparation method of the big granula of rice terrace weeding of claim 1-7 any one of them, it is characterised in that：
（1）Mefenacet, benzobicylon, surfactant and filler are uniformly mixed according to a ratio, then through air-flow crushing
Female powder is obtained after machine ultramicro grinding；
（2）Oiliness water surface spreader-sticker is adsorbed uniformly using adsorbent, obtains powder；
（3）By step（1）Female powder, step（2）Powder and solid core core material pour into double-spiral conical mixer successively
Middle mixing 10-30min；Suitable quantity of water is added through extruder grain, finally dry the big granula of weeding.
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| CN201810211659.XA CN108432750A (en) | 2018-03-14 | 2018-03-14 | A kind of big granula of rice terrace weeding and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109258640A (en) * | 2018-10-21 | 2019-01-25 | 江苏长青生物科技有限公司 | A kind of paddy field floats discrete particles herbicide and preparation method thereof |
| CN109430260A (en) * | 2018-12-13 | 2019-03-08 | 潍坊先达化工有限公司 | A kind of granula and preparation method thereof for agent for removing grass in paddy field |
| CN110731346A (en) * | 2019-07-30 | 2020-01-31 | 安徽润农腾辉生物科技有限公司 | ternary weeding composition containing benzobicyclon |
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| CN103348981A (en) * | 2013-07-31 | 2013-10-16 | 河北博嘉农业有限公司 | Paddy field herbicide compounded with benzobicylon |
| CN103688971A (en) * | 2013-12-20 | 2014-04-02 | 南京高正农用化工有限公司 | Weeding macro granule for paddy field and preparation method thereof |
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| CN103348981A (en) * | 2013-07-31 | 2013-10-16 | 河北博嘉农业有限公司 | Paddy field herbicide compounded with benzobicylon |
| CN103688971A (en) * | 2013-12-20 | 2014-04-02 | 南京高正农用化工有限公司 | Weeding macro granule for paddy field and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109258640A (en) * | 2018-10-21 | 2019-01-25 | 江苏长青生物科技有限公司 | A kind of paddy field floats discrete particles herbicide and preparation method thereof |
| CN109430260A (en) * | 2018-12-13 | 2019-03-08 | 潍坊先达化工有限公司 | A kind of granula and preparation method thereof for agent for removing grass in paddy field |
| CN110731346A (en) * | 2019-07-30 | 2020-01-31 | 安徽润农腾辉生物科技有限公司 | ternary weeding composition containing benzobicyclon |
| CN110731346B (en) * | 2019-07-30 | 2021-08-13 | 合肥巨卓农业技术开发有限公司 | Ternary weeding composition containing benzobicyclon |
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