CN1066364A - Ternary mixed weed killer-chucaojing - Google Patents

Abstract

A kind of ternary mixed weed killer-chucaojing, by nitrofen, steriland herbicide reach draw collapse, prometryn, glyphosate, potassium chlorate etc. any, the hormone herbicide methyl, 2.4,2.4 d butyl esters, methoxone, mcpa sodium, 2,4,5-tears etc. any, auxiliary agent, inserts mixes, have the weeding rate height, safety, the saving of labor increases income, advantages such as working life is wide, and herbicidal spectrum is wide, and is easy to use.

Description

Ternary mixed weed killer-chucaojing

It is clean to the present invention relates to a kind of ternary mixed herbicide-weeding.

Along with agricultural modernization, scientific, society and peasant are more and more higher to the requirement of paddy chemical weeding agent, at present weed killer herbicide kind, formulation are a lot, unit and binary mixed type etc. are arranged, but because the factors such as growth characteristic of the institute of chemical constitution tool characteristic own and field weed community, thereby use single weed killer herbicide not very good to the chemical Control Effect of whole weeds, therefore scientific research department and producer all use in the mixing of research several herbicides both at home and abroad.

The purpose of this invention is to provide a kind of ternary mixed herbicide, learn from other's strong points to offset one's weaknesses, give full play to the effect of every kind of component, reach management of weeds to greatest extent, do not injure the effect of the seedlings of cereal crops again.

This weeding has efficiently only, safety, the saving of labor increases income, working life is wide, herbicidal spectrum is wide, advantage such as easy to use is killed careless highly, and preventive effect reaches 85-98%, to list, broadleaf weed all can be prevented and kill off, as common barnyard grass grass, Monochoria vaginalis in the southern and northern paddy field of China, nutgrass flatsedge, fescue, four leaf duckweeds, Drilgrass, Sagittaria pygmaea, wild arrowhead, water peanut, Scirpus tabernaemontani, pondweed etc. all can be prevented and kill off, working life is wide, can be before bud, the bud post processing, can dispenser in 2-15 days behind shoot transplanting equipment, and market sell domestic and international various weed killer herbicide must dispenser in 2-4 days after the rice shoot transfer.This weeding is dispenser in the 15th day behind ground shoot transplanting equipments such as changde, hunan, Guangxi Su Xu, Kunming, Yunnan only, and weeding rate reaches 88-92%, 100%, 94% respectively; This weed killer herbicide also adapts in live field.The present invention is a hypotoxicity, and to the person poultry safety, recommending formulation rate is early rice 250 gram/mus, and late rice is a 200-230 gram/mu, is increased to 400 gram or 500 gram/mus during test, does not find poisoning yet.This weeding can be mixed pesticide-clay mixture only and be applied, and also can mix the dispensing of topdressing with urea, and this season rice of dispenser can be exempted intertillage, and saves artificial service charge 15-20 unit/mu, mu volume increase paddy 8-15%.

The present invention is that to adopt nitrofen be first component and methyl, 24,24 d butyl esters, methoxone, mcpa sodium, a kind of in the hormone herbicides such as 245-tears is second component, a kind of in the steriland herbicides such as Da La collapses, prometryn, glyphosate, potassium chlorate is the 3rd component, add an amount of insecticides adjuvant, inserts mixes.

This ternary mixed herbicide is to reduce toxicity, improves the feasible solution of drug effect, is present domestic 12 components commonly used, 13 components, three optimization of formulation prescriptions of 23 components, and the adjusting application technology of its proportioning shows in the following weeding mechanism.

Several compositions of this prescription, can collaborative play a role, this is the internal factor that improves this agent drug effect, the 1st component is to the plumule of weeds, tender part of children such as leaf bud, the power of tagging of juvenile cell is strong, to multiple list, dicotyledonous careless bud is effective, but on this component is difficult in plant corpus and in the soil, down or to around conduction, the rice field usual amounts is about 500 gram/mus, behind the medicine in 7-10 days, the seedlings of cereal crops easily jaundice are suppressed, even burnt and the need replanting, it is to weeds breeding time, as four leaf duckweeds, pondweed, fescues etc. are are only killed and wounded and kill not dead, single with certain limitation is just arranged, get its unifacial leaf of tagging in this agent, the dicotyledonous class weeds young and can kill and wound the advantage of weeds a part cell remedies the 1st component weak point with the 23rd component, both belong to inner sucting conduction type the back, can be from the seed of weeds, root, stem, leaf and wound location enter in the cursive script, and along different route conduction, bring into play peculiar separately effect.This agent makes weeds dead because of metabolism disorder by changing the correlation of weeds nutrition organs, is the high internal cause of its weed eradication rate, and application condition and environment are regulated, and just can give full play to its selectivity.

There is the long weak point that has three kinds of clean component drug effect phases of this weeding, killing and wounding object differs, as the 1st component drug effect phase 7-15 days, the 2nd component was 56-84 days, and the 3rd component is 20-30 days, the three cooperates jointly, total drug effect peak period can be kept about 20 days, executed several compositions in back and generally was distributed in the following 5 centimetres of dark one decks of table soil, became the active drug layer, various germinable grass seeds are also in this layer, so can kill all kinds of weeds in native top layer effectively.After rice transplanting in 3-7 days, with this agent and fertilizer mixed applying or singly execute, the shallow water dispenser, water conservation 3-5 days (blade of grass, soil not dew face does not flood the standing grain fork again), it is mashed to obtain the dead root of grass, standing grain lover's effect, this agent is strong to the tender part of the weeds children power of tagging with No. 1 component just, some cell of weeds can kill and wound to breeding time, and the 2nd component can enter in the cursive script from wound, and the 23rd component also can be from grass seeds, root, stem, leaf cell epidermis or leaf stoma enter, the weeds whole machine body is subjected to poison comprehensively like this, its physiological coordination dependence is damaged, and metabolism is interrupted, thereby causes weeds death.But the seedlings of cereal crops preserve from, and are because three kinds of components all do not surpass its safe commodity consumption of using separately in this agent.

The proportioning of three kinds of components that this weeding is clean is:

The 13-21% nitrofen

The 1.5-6% steriland herbicide reach draw collapse, prometryn, glyphosate, potassium chlorate etc. any.

4.5-12% hormone herbicide methyl, 24,24 d butyl esters, methoxone, mcpa sodium, 245-tears etc. any.

The 1.5-5% auxiliary agent.

Surplus is an inserts

Wherein, the weight of nitrofen, steriland herbicide and three key components of hormone herbicide and account for the 23.5-39% of gross weight.

Embodiment 1(percentage by weight)

Nitrofen 21

Steriland herbicide 4.5

Hormone herbicide 5

Auxiliary agent 2.5

Inserts 67

Embodiment 2(percentage by weight):

Nitrofen 21

Steriland herbicide 1.5

Hormone herbicide 12

Auxiliary agent 1.5

Inserts 64

Embodiment 3(percentage by weight):

Nitrofen 13

Steriland herbicide 6

Hormone herbicide 4.5

Auxiliary agent 5

Inserts 71.5

And through in Guangxi, the sub-district in nearly 20 areas of 7 provinces and cities such as Hainan, Yunnan, Sichuan, Guangdong, Hunan, Shanghai, field experiment shows:

1, use weeding only once, this season rice field can not need artificial weeding separately.

2, weed control rate is more than 90%.

3, the clean herbicidal performance of weeding, at herbicidal spectrum, working life, safety, obviously be better than 25% nitrofen, butachlor, benthiocarb, and the careless jinx of import in price, Machete, and weeding can reach to still have fine herbicidal effect more than 2 years clean storage period.

Claims (2)

1, a kind of ternary mixed herbicide-weeding is clean, comprises nitrofen, hormone herbicide, and steriland herbicide is characterized in that proportioning is:

The 13-21% nitrofen

The 1.5-6% steriland herbicide reaches to draw and collapses, prometryn, glyphosate, potassium chlorate etc. any

4.5-12% hormone herbicide methyl, 2.4,2.4 d butyl esters, methoxone, mcpa sodium, 2.4.5-tears etc. any

The 1.5-5% auxiliary agent

Surplus is an inserts.

2, weed killer herbicide according to claim 1 is characterized in that the weight of described three main components and accounts for the 23.5-39% of gross weight.