CN103004779A - Production method of diflufenican/clomazone wettable powder - Google Patents

Abstract

The invention belongs to the field of agricultural weedicides, and particularly relates to a production method of diflufenican/clomazone wettable powder. The production method is characterized by comprising the following steps: adding effective ingredients of diflufenican and clomazone in a carrier; adding surfactant and disintegrant; evenly mixing, and then pulverizing; and finally, mixing. The prepared product is mainly used for controlling annual broadleaf weeds, grassy weeds and the like in garlic fields, wheat fields and paddy fields. The composition provided by the invention has the characteristics of effect improvement, weed control spectrum widening, drug resistance delaying and low cost.

Description

The production method that contains the wetting powder of Diflufenican and clomazone

Technical field

The invention belongs to the agricultural herbicide field, particularly contain the production method of the wetting powder of Diflufenican and clomazone.

Background technology

Diflufenican belongs to the carotenoid biosynthesis inhibitor, is the selectivity cornfield herbicidal of wide spectrum, causes Destruction of Chlorophyll and cell rupture, and plant is dead.To impose on autumn sowing Wheat and barley field before 125～250g/ha bud or behind the bud, prevent and kill off grass family and broad leaved weed, especially clearvers, Veronica and violet weeds.This medicament has following characteristics: broad weed-killing spectrum; But keeping from ill weeds; The drug effect phase is long in the soil; Efficacy stability; Can be mixed with other weed killer herbicides, enlarge the herbicide spectrum.

Clomazone has another name called clomazone, is the selectivity herbicide before seedling stage, and mainly root, the young shoot by plant absorbs, and upwards transporting diffuses to leaf section through xylem, suppresses the chlorophyll of sensitive plant and synthesizing of carotin.Form white seedling, dead in a short time.Lasting period is long, and the biologically active of clomazone in soil is sustainable more than 6 months, can be under recommended dose, and selectivity arranges succession crop, avoids poisoning.Applicable to crops such as soybean, sugarcane, potato, peanut, tobacco, paddy rice, rapes.Mainly prevent and kill off annual gramineae and the broad leaved weeds such as barnyard grass, green foxtail, lady's-grass, setaria glauca, eleusine indica, black nightshade, elscholtiza, water sour jujube pin, kitchen garden, piemarker, flowerofanhour root or herb, lamb's-quarters, little lamb's-quarters, penny cress, willow leaf thorn knotweed, pale persicaria, dayflower, Mao pig Xian, wolf tail grass, beggar-ticks, Siberian cocklebur, artemisiifolia.Perennial field thistle, setose thistle, corn sow thistle, meadow pine etc. there is stronger inhibitory action.

The different cultivars composition carries out composite, is the modal method of control resistant weed.Heterogeneity is carried out composite, can improve preventive effect, enlarges the consumption of herbicide spectrum, minimizing active ingredient, saves drug cost, reduces environmental pollution, is the important means of integrated control weeds in field.

Through retrieval, at present do not find Diflufenican with clomazone is composite and the document of application.

Summary of the invention

For addressing the above problem, the object of the present invention is to provide a kind of good drug efficacy, the long production method that contains Diflufenican and clomazone wetting powder of lasting period.

Technical scheme of the present invention is: a kind of production method that contains the wetting powder of Diflufenican and clomazone: active ingredient Diflufenican and clomazone are added in the carrier, and add therein surfactant and disintegrant, mix with mixer; Then pulverize with airslide disintegrating mill; Mix with mixer more at last.

Optimize, described surfactant is selected from one or more in emulsifier, dispersant, wetting agent or the bleeding agent.

Optimize, its component and weight content are as follows:

Diflufenican 1%～20%

Clomazone 1%～60%

Surfactant 5%～20%

Disintegrant 0%～10%

Filler 10%～80%

Each composition weight content sum is 100%.

Described emulsifier is selected from agricultural newborn 500#(alkyl benzene calcium sulfonate), OP series phosphate (polyoxyethylene nonylphenol ether phosphate), 600# phosphate (phenyl phenol polyoxyethylene ether phosphate), styrene polyoxyethylene ether ammonium sulfate salt, alkyl biphenyl ether disulfonic acid magnesium salts, triethanolamine salt, the newborn 400#(benzyl dimethyl phenol polyoxy ethyl ether of farming), Nongru-700 #(alkylphenol-formaldehyde resin polyoxy ethyl ether), peaceful newborn 36#(phenethyl fluosite polyoxy ethyl ether), the newborn 1600#(phenethyl phenol polyoxy ethyl polypropylene-base ether of farming), ethylene oxide-propylene oxide block copolymer, OP series (polyoxyethylene nonylphenol ether), BY series (castor oil polyoxyethylene ether), the newborn 33#(alkylaryl polyoxyethylene poly-oxygen propylene aether of farming), sapn series (sorbitol anhydride monostearate), in tween series (anhydrous sorbitol resin acid ester APEO) or the AEO series (fatty alcohol-polyoxyethylene ether) one or more.

Described dispersant is selected from one or more in polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene calcium sulfonate, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, aliphatic acid polyethenoxy ether or the fatty acid glyceride APEO.

Described wetting agent is selected from one or more in lauryl sodium sulfate, neopelex, Nekal BX, wetting and penetrating agent F, spaonin powder, silkworm excrement or the soapberry powder.

Described filler is selected from one or more in kaolin, diatomite, bentonite, attapulgite, White Carbon black, starch or the precipitated calcium carbonate.

Described disintegrant is selected from one or more in bentonite, urea, ammonium sulfate, aluminium chloride, low-substituted hydroxypropyl cellulose, lactose, citric acid, succinic acid or the sodium bicarbonate.

Above-mentioned active ingredient Diflufenican and clomazone all are weed killer herbicides well known in the art, can buy by various commercial channel.Material described above all is to well known to a person skilled in the art material, can buy by market.

The production method that contains the wetting powder of Diflufenican and clomazone provided by the invention, the product that makes can be used for preventing and treating the weeds such as wheat paddock, garlic field barnyard grass, lady's-grass, green foxtail, moleplant seed, eleusine indica, clearvers, kitchen garden, amaranth, lamb's-quarters, piemarker, black nightshade, cyperus iria, difformed galingale herb, and can reduce the application dosage of each active ingredient, reduce cost, reduce and pollute.

Beneficial effect of the present invention is: 1, the Herbicidal combinations synergistic effect is obvious, and drug effect significantly improves; 2, the Herbicidal combinations drug effect improves, and the field consumption of active ingredient descends, and has reduced production and use cost, reduces residue of pesticide and environmental pollution; 3, Herbicidal combinations is comprised of the active ingredient of different mechanism of action, and action site increases, and is conducive to overcome and delay the generation of herbicide resistance, is the important means of integrated control weeds in field.

Embodiment

Specify the present invention below in conjunction with embodiment.Percentage all is weight percentage among the embodiment, and the treatment dosage of field efficacy is effective ingredient consumption.

Embodiment 1

The wetting powder that contains Diflufenican and clomazone of present embodiment, its component and weight content are as follows:

Diflufenican 10%

Clomazone 20%

Surfactant 9%

Disintegrant 1%

Filler 60%

Described surfactant is the mixing of emulsifier, dispersant, wetting agent.Emulsifier is agricultural newborn 33#, and content 5%, dispersant are calcium lignosulfonate, content 3%; Wetting agent is lauryl sodium sulfate, content 1%; Disintegrant is bentonite; Filler is white carbon and kaolin, and wherein white carbon content is 20%.

The production method of the wetting powder that contains Diflufenican and clomazone of present embodiment is: according to the weight content of above-mentioned each component, active ingredient Diflufenican and clomazone are added in the carrier, and add therein surfactant and disintegrant, mix with mixer; Then pulverize with airslide disintegrating mill; Mix with mixer more at last.

Embodiment 2

The difference of present embodiment and embodiment 1 is that each component and weight content are as follows:

Diflufenican 5%

Clomazone 15%

Surfactant 9%

Disintegrant 6%

Filler 65%

Described surfactant is the mixture of the emulsifier newborn 500# of farming and agricultural newborn 600#, and consumption is respectively 4% and 5%; Disintegrant urea; Filler is kaolin.

Embodiment 3

The difference of present embodiment and embodiment 1 is that each component and weight content are as follows:

Diflufenican 10%

Clomazone 25%

Surfactant 7%

Disintegrant 3%

Filler 55%

Described surfactant is the mixture of the emulsifier newborn 500# of farming and agricultural newborn 600#, and consumption is respectively 4% and 5%; Disintegrant is aluminium chloride; Filler is attapulgite.

The below uses embodiment 2, embodiment 3 to carry out field control effectiveness test with Comparative Examples for the garlic field weed, and so that beneficial effect of the present invention to be described better, result of the test is as shown in table 1 below.Comparative Examples 1:50% Diflufenican wetting powder; Comparative Examples 2:48% clomazone missible oil.

Establish embodiment medicament, Comparative Examples medicament and do not use totally 9 processing of any medicament in this field test, each is processed and repeats 4 times, processes the residential quarter for totally 36, after planting carries out the soil spraying in garlic.Every processing residential quarter is got 3 points, every some 0.33m at random ², the healthy strain number of 20 days, 40 days investigation each point various weeds after medication respectively, behind the medicine 40 days in investigation weeds strain number, investigation fresh weight preventive effect.The results are shown in Table 1, table 2 and table 3.

Prevented and kill off garlic field weed strain preventive effect behind table 1 medicine in 20 days

Prevented and kill off garlic field weed strain preventive effect behind table 2 medicine in 40 days

Prevented and kill off garlic field weed fresh weight preventive effect behind table 3 medicine in 40 days

Can find out from the result of the test of table 1, table 2 and table 3, behind the medicine behind 20 days and the medicine 40 days, embodiment 2 per hectares are used more than active ingredient 30 grams, embodiment 3 per hectares are used more than active ingredient 35 grams, the strain preventive effect of lady's-grass, eleusine indica, Amaranthus retroflexus and kitchen garden and fresh weight preventive effect all are significantly higher than Comparative Examples 1 per hectare use active ingredient 60 grams and Comparative Examples 2 per hectares to use active ingredient 36 grams, show to have significant synergies after composite by pyrrole flutolanil and clomazone.Duration of test is observed, and garlic is without symptom of chemical damage, and test medicine is to garlic safety.

Claims (3)

1. a production method that contains the wetting powder of Diflufenican and clomazone is characterized in that: active ingredient Diflufenican and clomazone are added in the carrier, and add therein surfactant and disintegrant, mix with mixer; Then pulverize with airslide disintegrating mill; Mix with mixer more at last.

2. a kind of production method that contains the wetting powder of Diflufenican and clomazone according to claim 1, it is characterized in that: described surfactant is selected from one or more in emulsifier, dispersant, wetting agent or the bleeding agent.

3. a kind of production method that contains the wetting powder of Diflufenican and clomazone according to claim 1, it is characterized in that: its component and weight content are as follows:

Diflufenican 1%～20%

Clomazone 1%～60%

Surfactant 5%～20%

Disintegrant 0%～10%

Filler 10%～80%

Each composition weight content sum is 100%.