CN101057585A - Fenoxaprop-p-ethyl and quinclorac, bensulfuron-methyl/pyrazosulfuron-ethyl composition herbicide preparation - Google Patents

Abstract

The invention relates to a herbicide mixture of fenoxaprop-p-ethyl, quinclorac, bensulfuron methyl and pyrazosulfuron-ethyl, the herbicide can be used as haulm additive for rice field. By charging right amount of different excipient, the herbicide can be prepared into powder preparation, wet powder, water suspending agent, suspension emulsion, microcapsules, missible oils, granules, soluble granules and dispersible granules.

Description

FenoxapropPethyl and dichloro quinolinic acid, bensulfuron-methyl/pyrazosulfuron Herbicidal mixture preparation

Technical field

The present invention relates to a kind of weed killer herbicide, specifically is a kind of composite weedicide that grassy weed, broad leaved weed, sedge weed three major types weeds between dryland paddy is all had better preventive effect.

Technical background

China's dryland paddy does not have weed killer herbicide registration kind.Singly usefulness only can be effective to field 1-2 class weeds for fenoxapropPethyl, dichloro quinolinic acid, bensulfuron-methyl (or pyrazosulfuron).Therefore, the peasant owing to lack the knowledge of weed killer herbicide aspect, only can buy a kind of weed killer herbicide usually when carrying out the dryland paddy weeding, cause only removing field 1-2 class weeds, and the weeds of other common classification can't be removed, and weeding is imitated not good, influences the paddy rice harvest.And if the peasant buys multiple weed killer herbicide, then increased the weeding cost of every mu of dryland paddy, reduced agricultural income; Simultaneously, because the amount of application of weed killer herbicide increases, its environmental toxicity also increases thereupon, causes environmental pollution to increase the weight of, and is unfavorable for human health.

The inventor finds after deliberation, fenoxapropPethyl, dichloro quinolinic acid, bensulfuron-methyl (or pyrazosulfuron) three use with and can prevent and kill off the three major types weeds effectively, can obviously reduce amount of application, but a drug basic controlling dryland paddy weeds, enlarged and killed the grass spectrum, not only, and, saved agricultural basis to the equal safety of crops such as back stubble wheat, rape to fine when stubble upland rice safety.

Summary of the invention

The purpose of this invention is to provide a kind of fenoxapropPethyl and dichloro quinolinic acid, bensulfuron-methyl/pyrazosulfuron Herbicidal mixture preparation, can prevent and kill off the three major types weeds effectively, can obviously reduce amount of application, but a drug basic controlling dryland paddy weeds have made things convenient for the peasant to use.

Technical scheme of the present invention is as follows:

FenoxapropPethyl and dichloro quinolinic acid, bensulfuron-methyl/pyrazosulfuron Herbicidal mixture preparation, it is characterized in that being is active ingredient by fenoxapropPethyl and dichloro quinolinic acid, bensulfuron-methyl/pyrazosulfuron, with acceptable carrier on the agricultural chemicals or/and cauline leaf treatment agent behind the seedling of preventing and kill off the dryland paddy weeds that auxiliary agent is made.

The weight proportion of described fenoxapropPethyl and dichloro quinolinic acid, bensulfuron-methyl/pyrazosulfuron is:

FenoxapropPethyl 1-90

Dichloro quinolinic acid 1-90

Bensulfuron-methyl or pyrazosulfuron 0.1-20.

The weight proportion of described fenoxapropPethyl and dichloro quinolinic acid, bensulfuron-methyl/pyrazosulfuron is:

FenoxapropPethyl 5-10

Dichloro quinolinic acid 38-42

Bensulfuron-methyl or pyrazosulfuron 2-5.

Described Herbicidal mixture preparation, but it is characterized in that its formulation is pulvis, wetting powder, aqueous suspension agent, suspension emulsion, microcapsule formulations, missible oil, granule, soluble granula or decentralized granula.

Effective ingredient of the present invention is as follows:

1, fenoxapropPethyl (fenoxaprop-P-ethyl)

2, dichloro quinolinic acid (Quinclorac)

3, bensulfuron-methyl (Bensulfuron-Methyl) or

Pyrazosulfuron (pyrazosulfuron-ethyl)

Weed killer herbicide of the present invention is to be used to prevent and kill off cauline leaf treatment agent behind the seedlings of dryland paddy weeds, is used to prevent and kill off grassy weed between dryland paddy, broad leaved weed, sedge weed.Preventive effect to grassy weed, broad leaved weed, sedge weed all reaches more than 85%, amount of application only needs the 60-70% of the normal amount of application of former single weed killer herbicide, showing obvious synergistic between the each component does, economy improves greatly, herbicidal effect is good, but a drug basic controlling dryland paddy weeds, not only to when stubble upland rice safety fine, and to the equal safety of crops such as back stubble wheat, rape.

Embodiment

Example 1 (wetting powder): fenoxapropPethyl 5%, dichloro quinolinic acid 40%, bensulfuron-methyl or pyrazosulfuron 5%, auxiliary agent 12%, carrier mass 38% is prepared into 50% wetting powder.

Example 2 (aqueous suspension agent): fenoxapropPethyl 7%, dichloro quinolinic acid 39%, bensulfuron-methyl or pyrazosulfuron 4%, auxiliary agent 10%, carrier mass 40% is prepared into 50% aqueous suspension agent.

Example 3 (microcapsule formulations): fenoxapropPethyl 9%, dichloro quinolinic acid 38%, bensulfuron-methyl or pyrazosulfuron 3%, auxiliary agent 8%, carrier mass 42% is prepared into 50% microcapsule formulations.

Examples Example 4 (missible oil): fenoxapropPethyl 10%, dichloro quinolinic acid 38%, bensulfuron-methyl or pyrazosulfuron 2%, auxiliary agent 10%, carrier mass 40% is prepared into 50% missible oil.

The embodiments of the invention preparation is to all kinds of weed control efficacy tables

Handle medicament	Consumption (gai/hm 2)	To grassy weed preventive effect (%)	To broad leaved weed preventive effect (%)	To sedge weed preventive effect (%)
					Example 1 medicament	350	92	85	93
Example 2 medicaments	380	94	90	92
					Example 3 medicaments	320	95	92	89
Example 4 medicaments	380	97	88	87
					FenoxapropPethyl	50	95	0	0
Dichloro quinolinic acid	450	85	30	0
					Bensulfuron-methyl or pyrazosulfuron	45	0	93	95

More than handle upland rice safety.

Claims (4)

1, fenoxapropPethyl and dichloro quinolinic acid, bensulfuron-methyl/pyrazosulfuron Herbicidal mixture preparation, it is characterized in that being is active ingredient by fenoxapropPethyl and dichloro quinolinic acid, bensulfuron-methyl/pyrazosulfuron, with acceptable carrier on the agricultural chemicals or/and cauline leaf treatment agent behind the seedling of preventing and kill off the dryland paddy weeds that auxiliary agent is made.

2, Herbicidal mixture preparation according to claim 1 is characterized in that the weight proportion of described fenoxapropPethyl and dichloro quinolinic acid, bensulfuron-methyl/pyrazosulfuron is:

FenoxapropPethyl 1-90

Dichloro quinolinic acid 1-90

Bensulfuron-methyl or pyrazosulfuron 0.1-20.

3, Herbicidal mixture preparation according to claim 1 and 2 is characterized in that the weight proportion of described fenoxapropPethyl and dichloro quinolinic acid, bensulfuron-methyl/pyrazosulfuron is:

FenoxapropPethyl 5-10

Dichloro quinolinic acid 38-42

Bensulfuron-methyl or pyrazosulfuron 2-5.

4,, but it is characterized in that its formulation is pulvis, wetting powder, aqueous suspension agent, suspension emulsion, microcapsule formulations, missible oil, granule, soluble granula or decentralized granula according to claim 1,2 or 3 described Herbicidal mixture preparations.