CN1895043A

CN1895043A - Amide-triazene-niacin-pyrimisulfocamp complex herbicide

Info

Publication number: CN1895043A
Application number: CN 200510082976
Authority: CN
Inventors: 刘胜; 闪熙燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-11
Filing date: 2005-07-11
Publication date: 2007-01-17

Abstract

A composite herbicide for corn field is prepared from amide herbicide, triazabenzene herbicide, nicosulfuron, disperser, wetting agent, assistant, stabilizer and filler.

Description

Amide-type-triazine-nicosulfuron complex weedicide

The present invention relates to pesticide, especially a kind of cornfield weeding that is specifically designed to, and to the weed killer herbicide of corn growth safety.

Corn is an important crops, and along with the development of China's agricultural production, the corn field herbicide expense increases day by day.The kind of generally using both at home and abroad has Acetochlor, isopropyl methoxalamine, atrazine, chlortoluron etc. at present, Acetochlor and isopropyl methoxalamine are only to annual gramineous weed, the part broad leaved weed is effective, general and atrazine is used (CN1076077 with during application, CN1082315, CN1114875), but this mixture can only be used for corn broadcast backteeth before, before the weeds teething, the weeds back herbicidal effect of emerging is poor.Atrazine is a kind of weed killer herbicide preferably, and to corn growth safety, herbicidal effect is good, but has following shortcoming: the longevity of residure is long, conventional metering down easily to back stubble winter wheat produce poisoning (1989 newly organized agricultural chemicals handbooks such as Wang Huanmin, P524).Nicosulfuron is a kind of outstanding weed killer herbicide, and to corn safety, to back stubble safety, residence time weak point, existing sealing herbicide effect also has herbicidal effect preferably to the weeds seedling after emerging simultaneously, can effectively prevent and treat the grassy weed and the rhizome of nutgrass flatsedge.The Acetochlor of domestic extensive use and atrazine mixture, be subjected to during application soil moisture content influence big, herbicidal effect is unstable; The mixture that atrazine and nicosulfuron are composite, existing more report (number of patent application 01140289.X, number of patent application 01140290.3), has comparatively outstanding control efficiency in the corn field application, but sealing effect is relatively poor, be easy to leaching, the sealing effect in summer particularly good in moisture in the soil, that rainwater is more is relatively poor, has only to kill grass and do not have lasting sealing effect.

The objective of the invention is to overcome the weak point in the above prior art, composite dose of and a kind of corn field herbicide mixture-amide-type that developmental research goes out-triazine-nicosulfuron.This medicine herbicidal effect is good, herbicidal spectrum is wide, have good sealing concurrently and kill careless function, application cost low, to succession crop safety, can be used for corn and broadcast weeding before the backteeth, the weeds grass blade leaf that can be used for corn growing season is again handled, and uses weed killer herbicide easily.Process is to the patent documentation update search, and Yet-have does not have the production of composite dose of amide-type-triazine-nicosulfuron and reports for work at present.

Formation of the present invention:

Through a large amount of tests, prescription screening study, amide-type-triazine-nicosulfuron is selected acetamide-group herbicides for use for composite dose, as Acetochlor (acetochlor), isopropyl methoxalamine (metolachlor), different interior careless amine (propisochlor) etc.; Triazine herbicide, (trade name claims atrazine again as atrazine, English general atrazine by name), cyanazine (cyanazine) etc. and nicosulfuron (English general nicosulfuron by name), dispersion moisture agent is (as carboxymethyl cellulose, sodium lignin sulfonate, calcium lignosulfonate, NNO (formaldehyde condensation products of alkyl naphthalene sulfonate), polyvinylpyrrolidone etc.), thickener is (as carboxymethyl cellulose, diatomite etc.), stabilizing agent (tributyl phosphate, triphenyl phosphate etc.), antifreezing agent is (as glycerine, ethylene glycol), cosolvent is (as methyl alcohol, ethylene glycol), solvent etc. are through colloid mill, process retrofits such as ball mill grinding form.

The composition of this amide-type-triazine-nicosulfuron, proportioning (weight %) are:

Composition	Suspending agent	But wet-milling
Composition	Suspending agent	But wet-milling	Acetamide-group herbicides	1-50	5-50
Triazine herbicide	1-50	5-50	Acetamide-group herbicides	1-50	5-50
Triazine herbicide	1-50	5-50	Nicosulfuron	1-50	1-50
Dispersant	1-5	1-5	Nicosulfuron	1-50	1-50
Dispersant	1-5	1-5	Wetting agent	1-6	3-6
Thickener	1-7		Wetting agent	1-6	3-6
Thickener	1-7		Stabilizing agent	0.1-2	0.1-2
Ethylene glycol	1-5		Stabilizing agent	0.1-2	0.1-2
Ethylene glycol	1-5		Cosolvent	1-5
Water	Surplus		Cosolvent	1-5
Water	Surplus		Diatomite		Surplus

By prescription weighing medicament, add in proper order, slightly mix earlier, when producing suspending agent with high-shear emulsion machine or colloid mill. sand mill grinds, and is ground to 5 microns; When producing wetting powder or pulvis, use airslide disintegrating mill and pulverize, then use the double worm mixer mixing.Through detecting, every indexs such as medicament suspensibility of the present invention, dispersiveness, stability are better than like product, meet the FAO standard.Concrete production technology such as Fig. 1 (attached).

Embodiment:

Prescription one: 250 kilograms of Acetochlors, 100 kilograms of atrazines, 10 kilograms of nicosulfurons, 30 kilograms of calcium lignosulfonates, 50 kilograms of methyl alcohol, 8 kilograms of tributyl phosphates, 35 kilograms of carboxymethyl celluloses, 20 kilograms of ethylene glycol, add water to 1000 kilograms.

Prescription two: 150 kilograms of propisochlors, 100 kilograms of cyanazines, 10 kilograms of nicosulfurons, 8 kilograms of tributyl phosphates, 15 kilograms of carboxymethyl celluloses, 15 kilograms of polyvinylpyrrolidones, add diatomite to 1000 kilogram.

Prescription three: 50 kilograms of isopropyl methoxalamines, 10 kilograms of atrazines, 10 kilograms of nicosulfurons, 0.8 kilogram of tributyl phosphate, 40 kilograms of carboxymethyl celluloses, add diatomite to 1000 kilogram.

Composite dose of amide-type-triazine-nicosulfuron, through we in Zhengzhou, the field efficacy closed test in areas such as Kaifeng, Anyang, Jiaozhuo, Nanyang, herbicidal effect is outstanding.Concrete weeding result of the test sees Table 1.

Table 1 amide-type-triazine-nicosulfuron field test results

Handle (gram/mu)	Herbicidal effect (fresh weight preventive effect %)
	Herbicidal effect (fresh weight preventive effect %)					Lady's-grass	Eleusine indica	Amaranthus retroflexus	Acalypha copperleaf	The rhizome of nutgrass flatsedge
	Acetochlor-atrazine-nicosulfuron 80	98.6	99.8	100	100	Lady's-grass	Eleusine indica	Amaranthus retroflexus	Acalypha copperleaf	The rhizome of nutgrass flatsedge	97.5
Acetochlor 50	Acetochlor-atrazine-nicosulfuron 80	98.6	99.8	100	100	91.2	89.5	76.2	21.5	1.8	97.5
Acetochlor 50	Atrazine 80	81.6	75.3	92.3	89.0	91.2	89.5	76.2	21.5	1.8	2.3
Nicosulfuron 4	Atrazine 80	81.6	75.3	92.3	89.0	91.5	94.2	86.5	78.9	93.2	2.3
Nicosulfuron 4	Acetochlor+atrazine 80	92.4	91.5	94.8	82.5	91.5	94.2	86.5	78.9	93.2	1.5
Nicosulfuron+atrazine 80	Acetochlor+atrazine 80	92.4	91.5	94.8	82.5	93.1	90.2	89.5	84.6	96.2	1.5

Good effect of the present invention:

1. amide-type-triazine-nicosulfuron built agent weeding is remarkable, is better than three kinds of single doses, also is better than the herbicidal effect of atrazine plus acetochlar, is present optimal herbicide.

2. such medicament can be used for broadcasting closed soil treatment before the rear bud, also can be used for corn growing season, weeds seedling after early stage cauline leaf process. Easy to use, it is long to be suitable for period.

3. such chemical control weeds spectrum is wide, can effectively prevent and kill off the grassy weeds such as lady's-grass, barnyard grass grass, eleusine indica, green bristlegrass, the broad leaved weeds such as lamb's-quarters, amaranth, purslane, acalypha copperleaf, and the rhizome of nutgrass flatsedge had outstanding prevention effect.

4. such medicament residual life shortening does not have poisoning to second stubble crop.

Claims

1. amide-triazene-niacin-pyrimisulfocamp is composite dose, it is the weed killer herbicide that forms through scientific formula, retrofit, it is characterized in that this weed killer herbicide is by acetamide-group herbicides, triazine herbicide, three kinds of active ingredients of nicosulfuron, add auxiliary agents such as dispersant, wetting agent, stabilizing agent and filler and form.

2. according to the requirement of right 1, it is characterized in that composite dose of active ingredient of selecting for use of amide-triazene-niacin-pyrimisulfocamp is acetamide-group herbicides, as Acetochlor (acetochlor), isopropyl methoxalamine (metolachlor), propisochlor (propisochlor) etc.; Triazine herbicide, as atrazine (trade name claims atrazine again, English general atrazine by name), cyanazine (cyanazine) etc. and nicosulfuron (English general nicosulfuron by name), dispersion moisture agent is (as carboxymethyl cellulose, sodium lignin sulfonate, calcium lignosulfonate, NNO (formaldehyde condensation products of alkyl naphthalene sulfonate), polyvinylpyrrolidone etc.), thickener is (as carboxymethyl cellulose, diatomite etc.), stabilizing agent (tributyl phosphate, triphenyl phosphate etc.), antifreezing agent is (as glycerine, ethylene glycol), cosolvent is (as methyl alcohol, ethylene glycol), solvent etc.The various compositions of this medicament, proportioning (weight %) are: Composition Suspending agent But wet-milling Acetamide-group herbicides triazine herbicide nicosulfuron dispersant wetting agent thickener stabilizing agent ethylene glycol cosolvent water diatomite 1-50 1-50 1-50 1-5 1-6 1-7 0.1-2 1-5 1-5 surplus 5-50 5-50 1-50 1-5 3-6 0.1-2 surplus

3. according to the requirement of right 1, it is characterized in that used dispersant, wetting agent are NNO, carboxymethyl cellulose, sodium lignin sulfonate, calcium lignosulfonate, polyvinylpyrrolidone etc.In colloidal suspending agent with NNO and another compound use the best.Compound with carboxymethyl cellulose and wherein another in wetting powder is the best.

4. according to the requirement of right 1, it is characterized in that thickener used in the colloidal suspending agent is a polyvinyl alcohol.CMC (sanlose), diatomite are combined into the best with polyvinyl alcohol and tripolite compound.

5. according to the requirement of right 1, it is characterized in that used stabilizing agent is a tributyl phosphate. triphenyl phosphate, use the best with the two.

6. according to the requirement of right 1, it is characterized in that antifreezing agent used in colloidal suspending agent is glycerine or ethylene glycol.