CN104222093A - Weeding composition containing benzobicylon and pyriminobac-methyl - Google Patents

Abstract

The invention relates to a weeding composition. The weeding composition comprises effective components, namely benzobicylon and pyriminobac-methyl, wherein the weight part ratio of benzobicylon to pyriminobac-methyl ranges from 60:1 to 1:15. The weeding composition has remarkable synergistic effects on barnyard grass and sagittaria pygmaea; the weeding effect is improved and the herbicide controlling spectrum is enlarged; and the weeding composition is suitable for preventing and killing annual weeds in paddy fields.

Description

A kind of Herbicidal combinations containing benzobicylon and KIH 6127

Technical field

The invention belongs to agriculture weeding technique field, be specifically related to a kind of Herbicidal combinations being active ingredient with benzobicylon, KIH 6127, be applicable to prevent and kill off paddy field annual weed.

Background technology

Along with progressively eliminating of high-toxic pesticide, need efficient, low toxicity, safety, environment amenable pharmaceutical preparations, the Long-Time Service of agricultural chemicals makes the pesticide resistance of disease pest and weed produce simultaneously, also more and more higher to the requirement of pesticide control, this just needs agricultural chemicals research staff to develop the pharmaceutical preparations of highly effective and safe, meets control requirement.Because China's pesticides discovery is at the early-stage, the pesticide species with independent intellectual property right can't be satisfied the demand, therefore the pesticide mixed preparation of development of new, is the only way of current Agrochemicals.

Benzobicylon is the research and development of Japanese SDS bioscience Co., Ltd., be mainly used in water prevention barnyard grass in paddy field, annual broadleaf weed and sedge weed, weeds sulfonylurea being produced to resistance have good preventive effect, the paddy field weeds such as barnyard grass, firefly Lin, Monochoria vaginalis, short arrowhead, false rice effectively can be prevented and kill off by soil treatment, just desirable preventive effect can be reached to short arrowhead high dose, lasting period can reach 6 weeks, and this compound is that at present a unique energy uses and to the effective medicament of false rice on paddy rice in the world.

KIH 6127 is pyrimidinylthiobenzoate herbicides, is that lead compound develops inhibitor of acetolactate synthetase, can spreads rapidly, by root absorption in water with sulfonyl urea compound; Interior absorption is strong, also can make cauline leaf inorganic agent; To barnyard grass special efficacy, also there is good control efficiency to sedge weed and broad leaved weed.

Weed killer herbicide is rationally composite is improve preventive effect, expand herbicide spectrum or widen service time, delaying the speed of shift of weed community, reducing the resistance risk that the single use of agricultural chemicals brings, alleviate the pollution to environment, reduce a kind of effective ways of use cost and reduction herbicide residue.The mixture of the present inventor to benzobicylon, KIH 6127 conducts in-depth research, on the basis of a large amount of formula indoor screening tests and field medicine effect test, discovery benzobicylon, KIH 6127 carry out mixture, within the scope of certain mixed ratio, synergistic function is shown to barnyard grass, short arrowhead, be applicable to prevent and kill off paddy field annual weed, after further study, the present invention is completed.

Summary of the invention

The object of the invention is to solve deficiency when weed killer herbicide is single to be used, provide a kind of efficient, low toxicity, low cost, quick-acting is good, and the lasting period is long, is conducive to the Herbicidal combinations of the farmland weed comprehensive regulation.

Technical scheme of the present invention is: a kind of Herbicidal combinations, is made up of active ingredient benzobicylon, KIH 6127 and suitable insecticides adjuvant, and the ratio of weight and number of benzobicylon and KIH 6127 is 60:1 ~ 1:15.

Described Herbicidal combinations excipient wetting powder, water dispersible granules, suspending agent etc. are applicable to the formulation agriculturally used.

Above-mentioned Herbicidal combinations is processed into water dispersible granules, and each weight percentages of components is: benzobicylon 0.1% ~ 80%, KIH 6127 0.1% ~ 80%, surfactant 1% ~ 20%, and all the other are carrier.

Above-mentioned Herbicidal combinations is processed into wetting powder, and each weight percentages of components is: benzobicylon 0.1% ~ 80%, KIH 6127 0.1% ~ 80%, surfactant 1% ~ 20%, and all the other are carrier.

Above-mentioned Herbicidal combinations is processed into suspending agent, and each weight percentages of components is: benzobicylon 0.1% ~ 80%, KIH 6127 0.1% ~ 80%, surfactant 1% ~ 20%, and all the other are carrier.

Described Herbicidal combinations is processed into water dispersible granules, wetting powder, suspending agent, and surfactant is one or more of neopelex, lauryl sodium sulfate, lignosulfonates, aliphatic alcohol sulfate, aliphatic alcohol polyethenoxy, sodium butylnaphthalenesulfonate, naphthalenesulfonate formaldehyde condensation compound and polycarboxylic acid; Carrier is one or more in kaolin, attapulgite, bentonite, diatomite, talcum powder, precipitated calcium carbonate, urea, white carbon.

The production technology of the various application forms of described Herbicidal combinations all belongs to existing known technology, does not repeat them here.

Herbicidal combinations provided by the invention, is applicable to prevent and kill off paddy field annual weed.

Herbicidal combinations provided by the invention has following beneficial effect:

1, Herbicidal combinations provided by the invention, for paddy field chemical weed control provides a kind of economy, environmental protection, efficiently solution.Composition expands the herbicide spectrum of benzobicylon and KIH 6127 single dose, within the scope of 60:1 ~ 1:15, obvious synergistic function is shown to barnyard grass, short arrowhead, the control efficiency of composition has had raising than single dose, reduce the using dosage of agricultural chemicals, reduce drug cost and agricultural chemicals to the risk of ecotope adverse effect.

2, provided by the invention is Herbicidal combinations, can reduce the resistance risk of the single benzobicylon of Long-Time Service or KIH 6127 generation, extend the service life of medicament, to the comprehensive regulation important in inhibiting of Weed Resistance.

Embodiment

In order to make object of the present invention, technical scheme and advantage more short and sweet, the following specific embodiment of the present invention is described, but the present invention is only limitted to absolutely not these examples.The following stated is only the good embodiment of the present invention, only for describing the present invention, can not be interpreted as limitation of the scope of the invention.It should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

In these embodiments, unless otherwise indicated, all percentage is all weight percentage.

Embodiment one: KIH 6127 and benzobicylon and mixture thereof are to the toxicity test of 4 leaf phase barnyard grasses.

Table 1, KIH 6127 and benzobicylon and mixture thereof are to the regression relation of the dose-response of 4 leaf phase barnyard grasses and synergy.

According to the abundant method of Sun Yun, co-toxicity coefficient is greater than the synergy of 120 expression, two yuan of mixtures to target and shows as synergy, by table 1 learn KIH 6127 and benzobicylon in 15:1,7:1,3:1,1:1,1:3,1:7,1:15,1:30,1:60 ratio to the co-toxicity coefficient of barnyard grass all more than 140, as can be seen here, KIH 6127 and benzobicylon mixture show as synergistic function to barnyard grass to barnyard grass in test ratio and proportion.

Embodiment two: KIH 6127 and benzobicylon and mixture thereof to 4 the leaf phase short arrowhead toxicity test.

Table 2, KIH 6127 and benzobicylon and mixture thereof to 4 the leaf phase short arrowhead the regression relation of dose-response and synergy.

According to the abundant method of Sun Yun, co-toxicity coefficient is greater than 120 expression, two yuan of mixtures and shows as synergistic function to target, learn that KIH 6127 and benzobicylon are all greater than 120 in the coefficient of majoring in of 15:1,7:1,3:1,1:1,1:3,1:7,1:15,1:30,1:60 ratio to short arrowhead by table 2, as can be seen here, KIH 6127 and benzobicylon mixture show as synergistic function to short arrowhead in test ratio and proportion.

Embodiment three: prepare benzobicylon KIH 6127 water dispersible granules.

Above-mentioned material is added in cone-type mixer together and mixes; pulverize by airslide disintegrating mill; material after pulverizing mixes through cone-type mixer again; mixed fineness of materials 98% is by 600 mesh standard sieves; add in kneader and be kneaded into plasticity material; finally this material is put into Squeezinggranulator extruder grain, after drying, screening, after granulation, namely obtain the benzobicylon KIH 6127 water dispersible granules of corresponding percentage by weight.

Embodiment four: prepare benzobicylon KIH 6127 wetting powder.

Above-mentioned material is added in cone-type mixer together and mixes, pulverize by airslide disintegrating mill, material after pulverizing is again through cone-type mixer mixing, and mixed fineness of materials 98%, by 600 mesh standard sieves, namely obtains the benzobicylon KIH 6127 wetting powder of corresponding percentage by weight.

Embodiment five: preparation KIH 6127 benzobicylon suspending agent.

Above-mentioned formula is pulverized in proportion in advance, then adds in sand mill and grind, the KIH 6127 benzobicylon suspending agent of the obtained corresponding percentage by weight of allotment after high shear mixing.

Embodiment six: prevent and kill off paddy field annual weed field control effectiveness test.

Table 3, KIH 6127 and benzobicylon composition are to the field efficacy of paddy field annual weed and safety.

In sum, Herbicidal combinations of the present invention is outstanding to paddy field field annual weed drug effect under suitable dose, and composition is obvious to barnyard grass, short arrowhead synergy, good to Security of rice, is the herbicide composition preventing and kill off paddy field annual weed.

Claims (3)

1. contain a Herbicidal combinations for benzobicylon and KIH 6127, it is characterized in that: active ingredient is benzobicylon, KIH 6127, the ratio of weight and number of benzobicylon and KIH 6127 is 60:1 ~ 1:15.

2. a kind of Herbicidal combinations containing benzobicylon and KIH 6127 according to claim 1, is characterized in that: its formulation is the one in water dispersible granules, wetting powder, suspending agent.

3. a kind of Herbicidal combinations containing benzobicylon and KIH 6127 according to claim 1, is applicable to prevent and kill off paddy field annual weed.