CN1593141A

CN1593141A - Tribenuron-methyl and Fluroxypyr mixed herbicide formulation

Info

Publication number: CN1593141A
Application number: CN 200410024503
Authority: CN
Inventors: 李美; 李以三
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-16
Filing date: 2004-07-16
Publication date: 2005-03-16

Abstract

The invention provides a herbicide preparation prepared from the active constituents of Tribenuron-methyl and Fluroxypyr for eradiating mashedpotato weeds in wheat fields, which is characterized in that the effective compositions are Tribenuron-methyl and Fluoxypyr whose weight ratio is 1:60-5:1, auxiliary agents or carrying agents can also be charged to prepare missible oil, water solution, powder preparation, soluble powder, wet powder, microemulsion, water suspending agent, dried suspending agent, oil suspending agent, water emulsifying liquid, and suspending emusion.

Description

Tribenuron-methyl and fluroxypyr Herbicidal mixture preparation

Technical field the present invention relates to agricultural chemicals, specifically a kind ofly prevents and kill off the weeds in field preparation by the combination of tribenuron-methyl and fluroxypyr.

Tribenuron-methyl

English common name: tribenuron-methyl

Chemical name: 3-(4-methoxyl group-6-methyl isophthalic acid, 3,5-triazine-2-yl)-1-(2-methoxyl group formyl phenyl) sulfonylureas

Chemical structural formula:

Fluroxypyr

English common name: fluroxypyr

Chemical name: 4-amino-3,5-two chloro-6-fluoro-pyridine-2-fluoroacetic acid

Chemical structural formula:

Background technology is along with the development of chemical weed control technology, China's chemical weed control area rapid growth, and the initial stage nineties is 2,300 ten thousand hm2, now nearly 6,100 ten thousand hm2.But along with long-term, the large scale application of weed killer herbicide, many outstanding problems appear in the farmland weed chemical harnessing, and weeds resistance, population succession and drug injury problem are more and more serious.Many emerging malignant weeds appear in the farmland.Because weed killer herbicide to the selectivity of weeds, causes susceptible weeds quantity to descend, and insensitive weeds quantity rises, and causes that weed community changes.Many drug resistance weeds also rise to the field main weeds gradually, become emerging malignant weed; Secondly, it also is to cause that the main cause that develops takes place weed community that the change of cropping system, the allocation and transportation of interzone seed, farm imports carry etc.Wheatland is because long-term single use tribenuron-methyl, and many have chemical sproof weeds and tribenuron-methyl to prevent and kill off weeds beyond the object to tribenuron-methyl to develop rapidly and spread.Before 2000, Shandong Province wheat paddock weeds are dominant population with descurainia sophia (l.) webb ex prantl, shepherd's purse, many emerging malignant weeds appear now, as clearvers, wartwort, corn gromwell, Arabic Veronica, wild oat, amur foxtail, Wang grass, candle grass, rescuebrome, hard grass,  hold, humulus grass etc., medicament commonly used is difficult to prevent and kill off, and seriously reduces crop yield and influence results.At present, research safety, efficient, low consumption, weed killer herbicide new varieties cheaply are an urgent demands of current agricultural production.

Summary of the invention herbicide formulations of the present invention is to be the Herbicidal compositions of active ingredient preparation by tribenuron-methyl and fluroxypyr, is used for the disposable broadleaf weed that wheat paddock takes place of preventing and kill off.It is characterized in that: active ingredient is tribenuron-methyl and fluroxypyr, forms Herbicidal compositions; Tribenuron-methyl and fluroxypyr 1: 60 by weight ratio～5: 1 are rationally composite; Add auxiliary agent or carrier, be prepared into missible oil, aqua, pulvis, soluble powder, wetting powder, microemulsion, aqueous suspension agent, dry suspending agent, oil-suspending agent, water dispersible granules, suspended emulsion.

Embodiment

Embodiment:

Example 1 (wetting powder):

Tribenuron-methyl 1%, fluroxypyr 29%, diatomite 50%, white carbon black 18%, Negel 2% is made 30% wetting powder.

Example 2 (aqueous suspension agent):

Tribenuron-methyl 2.5%, fluroxypyr 22.5%, agricultural newborn 600#10%, OT-10 10%, white carbon black 0.2%, wooden calcium 2%, water supplies 100%, makes 25% aqueous suspension agent.

Example 3 (dry suspending agent):

Tribenuron-methyl 5%, fluroxypyr 25%, agricultural newborn 600#5%, OT-10 5%, calcium salt 5%, lignosulfite 10%, ammonium nitrate 45% is made 30% dry suspending agent.

Example 4 (water dispersible granules):

Tribenuron-methyl 10%, fluroxypyr 10%, agricultural newborn 600#5%, OT-10 5%, calcium salt 5%, lignosulfite 10%, ammonium nitrate 55% is made 20% water dispersible granules.

Embodiments of the invention preparation weeding test effect sees Table 1:

Table 1 embodiment field weeding test effect

Handle medicament		Consumption (g a.i./ha)	To descurainia sophia (l.) webb ex prantl, shepherd's purse preventive effect (%)	To clearvers, wartwort, corn gromwell preventive effect (%)	Estimate
Handle medicament		Consumption (g a.i./ha)		To clearvers, wartwort, corn gromwell preventive effect (%)	Estimate	Example 1 medicament		????120	????94	????95	Reduce cost, enlarge grass spectrum extremely
Example 2 medicaments		????110	????98	????96	Reduce cost, enlarge grass spectrum extremely	Example 1 medicament		????120	????94	????95	Reduce cost, enlarge grass spectrum extremely
Example 2 medicaments		????110	????98	????96	Reduce cost, enlarge grass spectrum extremely	Example 3 medicaments		????60	????99	????97	Reduce cost, enlarge grass spectrum extremely
Example 4 medicaments		????25	????93	????78	Reduce cost, enlarge grass spectrum extremely	Example 3 medicaments		????60	????99	????97	Reduce cost, enlarge grass spectrum extremely
Example 4 medicaments		????25	????93	????78	Reduce cost, enlarge grass spectrum extremely	The contrast medicament	Tribenuron-methyl	????13.5	????90	????20	????????-
Fluroxypyr	????150	????92	????89	????????-			Tribenuron-methyl	????13.5	????90	????20	????????-

More than handle the equal safety of wheat.

Advantage of the present invention

(1) enlarge to kill the grass spectrum: the tribenuron-methyl list is used wheat paddock descurainia sophia (l.) webb ex prantl, shepherd's purse weeds preventive effect better, and is relatively poor to broad leaved weed preventive effects such as emerging malignant weed clearvers, wartwort, corn gromwell, Arabic Veronicas.The fluroxypyr list is used the most broadleaf weed preventive effects of wheat paddock all better, the composition that the present invention proposes, can disposablely prevent and kill off most of broadleaf weeds behind the wheat paddock seedling, especially many emerging malignant weeds, as clearvers, wartwort, corn gromwell, Arabic Veronica etc., weeds in the dispenser controlled wheat whole growing.

(2) save drug cost: weed killer herbicide is used in the field, has saved farming season, and the weeding cost also is the key factor that the peasant selects medicament.The tribenuron-methyl list is low with cost, about 0.5 yuan/mu of mu cost, but poor to many weed control efficacies; The fluroxypyr list is good with herbicidal effect, but cost is higher, about 5 yuan/mu of mu cost, and the two is used with when guaranteeing herbicidal effect, can reduce cost greatly.

(3) to working as stubble wheat and succession crop safety: through verification experimental verification, the composition that the present invention proposes has reduced the dosage of tribenuron-methyl, uses by the doubly amount of normal field consumption, not only to when the safety of stubble crop wheat fine, and after the medication to the equal safety of the Soybean and Other Crops of back stubble plantation.

Claims

1. a tribenuron-methyl mixes the herbicidal formulations of preventing and kill off weeds in field with fluroxypyr, it is characterized in that: active ingredient is tribenuron-methyl and fluroxypyr, forms Herbicidal compositions; Tribenuron-methyl and fluroxypyr 1: 60 by weight ratio～5: 1 are rationally composite; Add auxiliary agent or carrier, be prepared into missible oil, aqua, pulvis, soluble powder, wetting powder, microemulsion, aqueous suspension agent, dry suspending agent, oil-suspending agent, water dispersible granules, suspended emulsion.