CN1142894A

CN1142894A - Sulfonylurea herbicide mixed agent and its use

Info

Publication number: CN1142894A
Application number: CN 96115429
Authority: CN
Inventors: 郭武棣; 张瑞亭; 李正名; 王丕业; 姜斌; 贾国峰; 黑中一; 周惠中; 王玲秀; 詹福康; 相艳华
Original assignee: SONGLIAO CHEMICAL ENGINEERING Co DLIAN; Shenyang Research Institute of Chemical Industry Co Ltd; Nankai University
Current assignee: SONGLIAO CHEMICAL ENGINEERING Co DLIAN; Shenyang Research Institute of Chemical Industry Co Ltd; Nankai University
Priority date: 1996-07-03
Filing date: 1996-07-03
Publication date: 1997-02-19

Abstract

The mixed agent is composed of compound (I) and more than one kinds of the herbicides of ohloro-amide type, triazine type, substituted urine type and phenoxy carboxylic acid type. It is used for weeding in the maize and soybean farmland.

Description

Weedicide mixture of sulfonylurea and application thereof

The present invention relates to effective ingredient sulfonyl urea compound (I).

This compound is open in CN1080116 as weed killer herbicide.

The broadleaf weed that independent application compound (I) is prevented and kill off in corn field, soybean field, the wheatland is effective, but to monocotyledon weed, relatively poor as preventive effects such as barnyard grass grass, lady's-grass.

The newly organized agricultural chemicals handbook 468-479 page or leaf that the Ministry of Agriculture agriculture chemical examination institution publishes has been reported single with chloroamides class weed killer herbicide, as Acetochlor, isopropyl methoxalamine, alachlor, butachlor, kecaoan is to lady's-grass, monocotyledon weeds such as barnyard grass grass are effective, but it is relatively poor to the broadleaf weed preventive effect, the 508-510 page or leaf has been reported independent application triazine herbicide such as atrazine, Simanex, SSH-108, it is effective that piperazine humulone (metribuzin) is prevented and kill off broadleaf weed, but to the monocotyledon weed weak effect, the long-term atrazine that uses, weeds produce resistance, herbicidal effect descends, the 515-522 page or leaf has been reported independent application phenyl ureagroup herbicides such as fluometuron, chlortoluron, it is effective to prevent and kill off broadleaf weed, but the preventive effect to monocotyledon weed is poor, the 424-428 page or leaf has reported that single phenoxy carboxylic acid herbicides of using is as 2,4D and ester thereof, it is effective that 2 first, 4 chlorine etc. are prevented and kill off broadleaf weed, but to the anti-heterodyne of monocotyledon weed.

The objective of the invention is to propose a kind of sulfonylurea novel herbicidal mixture, it can remove monocotyledon weed, can remove broadleaf weed again.

Content of the present invention is: proposed by sulfonylurea (I) or its salt and chloroamides class, triazines, more than one make stable Herbicidal compositions the substituted urea class phenoxy carboxylic acid herbicides, this mixture is used for corn field, soybean field, wheatland carries out soil or unifacial leaf and broadleaf weed can be effectively prevented and kill off in the cauline leaf processing, and reduces dosage separately.

1, the Herbicidal compositions effective component content of the present invention's proposition is 0.1-90%, and the ratio of effective ingredient is in the mixture;

Compound (I) is 1 with the ratio of chloroamides class weed killer herbicide: 5-90 (weight %);

Compound (I) is 1 with the ratio of triazine herbicide: 5-90 (weight %);

Compound (I) is 1 with the ratio of phenyl ureagroup herbicides: 5-90 (weight %).

2, in the mixture, the shared amount of surfactant is 1%-20% (weight %).

3, in the mixture, the amount of solid or liquid inert diluent is 1%-90% (weight %).

Preparation of the present invention, formulation have pulvis, wetting powder, soluble powder, granula, water-dispersion type granula, colloidal suspending agent, suspension emulsion, missible oil, microemulsion.

Mixture of the present invention demonstrates instability owing to carrier, the influence of auxiliary agent factors, and adding phosphate, carbonate, sulphate improve stability of formulation.

Content of the present invention is described in further detail by following examples.

Example 1

Compound (I) 0.4%, Acetochlor 4.6%, talcum powder 10%, carbonate 30% add diatomite to 100%, make effective ingredient and be 5% pulvis.

Example 2

Compound (I) 1.5%, Acetochlor 18.5%, sodium lignin sulfonate 5%, NNO4%, neopelex 1%, phosphate 10% add diatomite to 10%, make 20% wetting powder.

Embodiment 3

Compound (I) 1.5%, atrazine 38.5%, other makes 40% wetting powder with embodiment 2.

Example 4

Compound (I) 1.5%, Acetochlor 18.5%, atrazine 20%, sodium lignin sulfonate 5%, NNO4%, neopelex 2%, carbonate 10% add diatomite to 100%, make 40% wetting powder.

Example 5

Compound (I) sodium salt 1.5%, Acetochlor 18.5%, sodium lignin sulfonate 5%, CNF3%, white carbon 5% add Na2SO4 to 100%, make 20% soluble powder.

Example 6

Compound (I) 0.2%, Acetochlor 2.8%, sodium lignin sulfonate 5%, xanthic acid 0.05%, CaSO4 4% make powder earlier, are coated on then on the 20-100 order sand, make 3% pulvis.

Example 7

Compound (I) 1.5%, Acetochlor 18.5%, sodium lignin sulfonate 6%, CNF5%, OMC20% grind in aqueous medium, and particle diameter is made suspension at 1-5 μ, but atomized drying gets 20% wet-milling.

Example 8

Compound (I) 1.5%, go to green bristlegrass Tianjin 38.5%, other is with embodiment 7, makes 40% wettable powder.

Example 9

Compound (I) is made 40% colloidal suspending agent earlier, gets 10 milliliters, adds 46% Acetochlor, and 165615%, add dimethylbenzene and make suspension emulsion.

Example 10

Compound (I) 1.5%, Acetochlor 18.5%, fourth breast 10%, oxolane 10%, dimethylbenzene 20% add dimethyl formamide and make 20% missible oil.

Example 11

Compound (I) 1.5%, isopropyl methoxalamine 28.5%, other makes 30% missible oil with example 10.

Example 12

Compound (I) sodium salt 1.5%, Acetochlor 18.5%, dimethyl formamide 30%, fourth breast 10%, tween 5%, ethanol 10% add water to 100% and make microemulsion.

Above-mentioned mix preparation is in corn, soybean Tanaka soil treatment before broadcasting the back seedling, and it the results are shown in Table 1:

Weed killer herbicide	Every mu of dosage (effective ingredient) gram/mu	Average preventive effect %
		Average preventive effect %		Unifacial leaf (barnyard grass grass, lady's-grass)	Dicotyledonous
		Compound, (I) Acetochlor atrazine compound, (I)+the Acetochlor compound, (I)+atrazine	4 30 80 30, (wherein Compound I is 2.25 gram Acetochlors, 27.5 grams) 60, (wherein Compound I is that 4.5 gram atrazines are 55.5)	Unifacial leaf (barnyard grass grass, lady's-grass)	Dicotyledonous	?????????47.8 ?????????81.0 ?????????14.2 ?????????100 ?????????93.9	????95.7 ????20.5 ????90.1 ????100 ????100

Compound (I) 4 gram/mus do not have poisoning to corn, and beans are had inhibitory action.

Compound (I)+Acetochlor 30 gram/mus does not have poisoning to corn, soybean.

Claims

1, Weedicide mixture of sulfonylurea and application thereof is characterized in that: Herbicidal compositions of the present invention is by compound (I)

Or its salt and chloroamides class, triazines, substituted urea class, phenoxy carboxylic acid herbicides more than one make Herbicidal compositions, this mixture effective component content is 0.1-90% (weight), compound (I) is 1 with the ratio of other weed killer herbicide that is mixed: 5-90.

2, Herbicidal compositions according to claim 1, it is characterized in that: used chloroamides class weed killer herbicide comprises Acetochlor, isopropyl methoxalamine, alachlor, butachlor, kecaoan, triazine herbicide comprises atrazine, Simanex, fluorine Kusatsu, cyanazine, piperazine humulone, phenyl ureagroup herbicides have fluometuron, chlortoluron, trefanocide, phenoxy carboxylic acid herbicides is as 2,4 one.

3, according to claim 1 and 2 described mixtures, it is characterized in that: but formulation has pulvis, wetting powder, soluble powder, granula decentralized granula, colloidal suspending agent, suspension emulsion, missible oil, microemulsion.

4, preparation according to claim 1 is characterized in that; Used stabilizing agent has phosphate, carbonate, sulphate.

5, Herbicidal compositions of the present invention is mainly used in corn, unifacial leaf and broadleaf weed are prevented and kill off in the soybean field.