CN1104847A

CN1104847A - Disposable "Daofujing" herbicide for rice field

Info

Publication number: CN1104847A
Application number: CN 93115919
Authority: CN
Inventors: 郭武棣
Original assignee: Shenyang Research Institute of Chemical Industry Co Ltd
Current assignee: Shenyang Research Institute of Chemical Industry Co Ltd
Priority date: 1993-11-17
Filing date: 1993-11-17
Publication date: 1995-07-12

Abstract

The present invention provides a new kind of trielement mixture, i.e. the preparation of ethyl oxamide (or butyl oxamide, trichloro-quinolinic acid), benzylpyriuron and methiuron. Said mixture preparation achieved the once through weeding for rice field and is harmless to the rice.

Description

Disposable "Daofujing" herbicide for rice field

The invention belongs to the farm weeding preparation.

Main weeds is grassy weed and broad leaved weed in the rice field, and CN1031081A report, benzyl ethyl methyl and metsulfuron-methyl are mixed and can strengthen preventive effect to paddy field broad leaved weed and sedge weed, but can not prevent and kill off standing grain section weeds such as barnyard grass grass effectively.Day herbaceous weed research 1985,30(4) that 278-283 has reported Acetochlor, butachlor, the dioxy quinolinic acid kills the barnyard grass grass is effective, but can not prevent and kill off broad leaved weed and sedge weed effectively, metsulfuron-methyl is dangerous to paddy rice, can not in the paddy field, use separately, Acetochlor is a dry land herbicide, active high to the barnyard grass grass, but dangerous to paddy rice, easily go out poisoning.

The objective of the invention is to develop a kind of mix preparation of new ternary component, this complex preparation has reached one-time weeding in the rice field, and to rice safety.

The ternary mix preparation that the present invention proposes, promptly make the ternary built preparation by Acetochlor (or butachlor, dioxy quinolinic acid) and benzyl ethyl methyl, metsulfuron-methyl (or pyrazosulfuron), its effective ingredient ratio is (5-10): 1: (0.1-1.0), can be made into the 1-20% pulvis, the 10-40% wetting powder, 1-20% granule or water dispersion granule, the 10-50% tablets and other formulations.

Used filler is diatomite, bentonite, attapulgite, potter's clay, talcum, white carbon, mineral salt etc. in the formulation; Binding agent is polyvinyl alcohol, starch, paraffin, gum Arabic, CMC; Auxiliary agent is sodium lignin sulfonate (calcium) salt; Dispersing agent NNO, pull powder Bx, bleeding agent dodecyl sodium sulfate and non-ionic surface active agent etc.Consumption accounts for the 5-30% of preparation.

Because the difference of physico chemical property separately of effective ingredient in the preparation is also different to the thermal sensitivity of temperature, acidity and other factors, show the heat storage after, effective ingredient is decomposed serious.For example: metsulfuron-methyl is in wetting powder, and no stabilizing agent exists down, stores 14 days resolution ratios up to 80% at 54 ± 2 ℃, and therefore various preparations must be selected the stabilizing agent that suits, and selected stabilizing agent has: BaSO ₄, CaCO ₃, NaHCO ₃, phosphate has: K ₂HPO ₄, KH ₂PO ₄And corresponding sodium or ammonium salt, pyrophosphate, tripolyphosphate, four Quadrafos, metaphosphate (K, Na or NH ₄Salt) etc.Its consumption is the 5-80% of preparation.

The present invention has selected suitable stabilizing agent for use, and various preparations are stored 14 days resolution ratios at 54 ± 2 ℃ and are controlled at below 80%.

Example 1

Acetochlor 20%, benzyl ethyl methyl 2%, metsulfuron-methyl 0.5%, lignin sodium sulfonate 8%, NNO2%, BaSO ₄10%, KH ₂PO ₄10%, complement to 100% with white carbon, carbonate arbitrary proportion and make wetting powder or granule.

Example 2

Butachlor 20%, benzyl ethyl methyl 0.4%, metsulfuron-methyl (or pyrazosulfuron) 0.1%, lignin sodium sulfonate 5%, NNO5%, BaSO ₄20%, complement to 100% with white carbon, bicarbonate arbitrary proportion and make pulvis, wetting powder or granule.

Example 3

Dichloro quinolinic acid 20%, benzyl ethyl methyl 1%, metsulfuron-methyl (or pyrazosulfuron) 0.3%, lignin sodium sulfonate 5%, NNO2%, 165L3%, CMC2%, dipotassium hydrogen phosphate 20%, complement to 100% with carbon power hydrogen sodium and calcium carbonate arbitrary proportion, make soluble powder, water dispersion granule or tablet.

Example 4

Acetochlor 20%, benzyl ethyl methyl 2%, pyrazosulfuron 0.5%, lignin sodium sulfonate 8%, NNO2%, BaSO ₄10%, KH ₂PO ₄10%, complement to 100% with white carbon, carbonate arbitrary proportion, make wetting powder or granule.

Herbicidal formulations of the present invention proves through field control effectiveness test, and to barnyard grass grass preventive effect about 90%, broad leaved weed and sedge weed preventive effect have enlarged and killed the grass spectrum more than 95%, reached the purpose that a drug is exempted intertillage, and complex preparation are all good than single agent.See table 1 for details

Claims

1, rice field herbicidal formulations, feature of the present invention one of in selecting Acetochlor or butachlor, dichloro quinolinic acid for use with the benzyl ethyl methyl, and metsulfuron-methyl or pyrazosulfuron the two one of make the ternary built preparation, its effective ingredient ratio is (5-10): 1: (0.1-1.0), preparation of the present invention can be pulvis, wetting powder, granule or water dispersion granule, tablet, used filler has diatomite, bentonite, attapulgite, potter's clay, talcum, white carbon, mineral salt etc., and used binding agent has polyvinyl alcohol, starch, paraffin, gum Arabic, CMC; Auxiliary agent is sodium lignin sulfonate (calcium) salt; Diffusant has NNO, pull powder Bx; Bleeding agent is dodecyl sodium sulfate and non-ionic surface active agent etc., and selected stabilizing agent has BaSO4, CaCO3, NaHCO3, K2HPO4, KH2PO4 and Na thereof or NH4 salt, pyrophosphate, tripolyphosphate, four Quadrafos, metaphosphate (K, Na or NH4 salt).

2, weed killer herbicide according to claim 1, the optimum content pulvis that it is characterized in that the effective ingredient in the preparation are that 1-20%, wetting powder effective ingredient optimum content are that the optimum content of effective ingredient in 10-40%, granule or the water dispersion granule is that the optimum content of effective ingredient in 1-20%, the tablet is 10-50%.

3, herbicidal formulations according to claim 1 is characterized in that the optimum content in added filler in the preparation, binding agent, auxiliary agent, diffusant, each comfortable preparation of bleeding agent is 5-30%.

4, weed killer herbicide according to claim 1 is characterized in that the 5-60% of added stabilizer comprises preparation in the preparation.

5, herbicidal formulations of the present invention is used for preventing and kill off the broad leaved weed and the grassy weeds such as sedge weed and barnyard grass grass in paddy field, uses to reach one-time weeding in the rice field.