CN101406181A

CN101406181A - Herbicidal composition

Info

Publication number: CN101406181A
Application number: CNA2008101582381A
Authority: CN
Inventors: 王从爱
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-22
Filing date: 2008-10-22
Publication date: 2009-04-15

Abstract

The invention discloses a herbicidal composition, which is formed by compounding mesotrione and powder of MCPA-sodium salt, wherein effective constituents of the herbicidal composition are the mesotrione and the MCPA-sodium salt, and the weight ratio of the effective constituents in the composition is as follows: the ratio of the mesotrione to the MCPA-sodium salt is between 1/80 and 80/1. The herbicidal composition makes up the disadvantages of poor effect and narrow herbicidal spectrum of the prior herbicide in corn and sugarcane fields, can prevent and remove various weeds in the sugarcane field at one time, has good herbicidal effect, reduces using amount, delays the generation of drug resistance of the weeds, and is environment-friendly, time-saving and labor-saving.

Description

Herbicidal combinations

Technical field

The present invention relates to a kind of Herbicidal combinations, especially a kind of Herbicidal combinations to corn, the control of sugarcane field weeds wide spectrum belongs to the farmingization technical field.

Background technology

People begin to be devoted to the research and development of corn, sugarcane field weed killer herbicide already.Can find that by inquiry many weed killer herbicide products to corn safety are relatively more responsive to sugarcane.Application number is 200610053858X, the Chinese invention patent application that name is called " a kind of weed killer herbicide of preventing and treating weeds in sugarcane field " discloses a kind of sugarcane field weed killer herbicide, it belongs to the weed killer herbicide that contains heterocyclic compound, its active ingredient is diuron, 2 first, 4 chlorine sodium and ametryns, the mass fraction scope is: diuron is that 5～25%, 2 first, 4 chlorine sodium are 5～20%; Ametryn is 10～50%.This complex weedicide has certain grass spectrum of killing, and can be used for sugarcane field and prevents and kill off annual gramineous weed and broad leaved weed.The patent No. is the herbicidal composition that 031024645 Chinese invention patent discloses a kind of management of weeds, with Acetochlor and ametryn is active ingredient, and add emulsifier, solvent and make, it consists of (weight ratio): Acetochlor 1-50%, ametryn 1-50, emulsifier 1-20%, solvent are supplied surplus and are reached 100%, can prevent and kill off annual broadleaf weed and grassy weed in corn, the sugarcane field.

Along with the progress of society, in China rural area, the theory that science and technology is tilled the land is rooted in the hearts of the people, has also brought material benefit to the peasant, and weed killer herbicide is widely used.But use a kind of for a long time or merely or a class weed killer herbicide, easily form the intrinsic grass spectrum of killing, cause the scope relative narrower of management of weeds, simultaneously grass is changed mutually, after susceptible weeds was controlled, the weeds that drug resistance is strong are easier grew up.Also do not have a kind of weed killer herbicide at present, can prevent and treat all weeds in a certain crop land for growing field crops.So the compounded technology to weed killer herbicide is studied, can reach to enlarge and kill grass spectrum, raising drug effect, environmentally friendly, as to reduce control of weeds cost effect.

Summary of the invention

Technical problem to be solved by this invention provides the Herbicidal combinations of a kind of control of maize, sugarcane field weeds, to improve the preventive effect of weed killer herbicide, reduce the control of weeds cost, solve the shortcoming that the sugarcane field herbicide effects is poor, herbicidal spectrum is narrow, prevent and kill off the multiple weeds in corn, the sugarcane field, and to succession crop safety.

For solving the problems of the technologies described above, its technical scheme that adopts of Herbicidal combinations of the present invention is, pulvis by mesotrione and mcpa sodium is composite forms for it, active ingredient is mesotrione and mcpa sodium, and the active ingredient weight ratio is in the composition: mesotrione/mcpa sodium=1/80～80/1.

Preferred above-mentioned Herbicidal combinations, its active princlple weight ratio is: mesotrione/mcpa sodium=1/1～4/1.

Said composition has been gathered the advantage of mesotrione and methoxone sodium, does not have antagonism each other, to crop safety.Two kinds of compositions are used with and used separately separately and carry out test of pesticide effectiveness contrast as can be known, and its herbicidal effect not only is better than the simple superposition of usefulness separately, and has remedied the deficiency on each comfortable herbicidal spectrum.Said composition was sprayed in the field entirely in 2-6 leaf phase, weeds 2-5 leaf phase that the sugarcane seedling is looked back, to corn, sugarcane and succession crop safety thereof, grass family in corn, the sugarcane field, broad-leaved and sedge weed all there are preventive effect preferably, can significantly enlarge and kill the grass spectrum.

Herbicidal combinations of the present invention has remedied traditional weed killer herbicide in corn, the sugarcane field herbicidal effect is poor, herbicidal spectrum is narrow shortcoming, can disposable various weeds of preventing and kill off in corn, the sugarcane field, and herbicidal effect is good, time saving and energy saving.Each active principle of said composition is used the back with and is had complementary advantages, and consumption reduces, and delayed the weeds pesticide resistance and produced, and environmentally friendly.When this product is used two kinds of components are now mixed existing usefulness, better effects if.

Medicament involved in the present invention is the medicine powder available from market.

The preparation method of Herbicidal combinations of the present invention is the usual method of using of the industry.

Embodiment

Below in conjunction with embodiment to the detailed description of the invention.

The active ingredient that the present invention relates to is mesotrione and mcpa sodium, wherein: mesotrione is a kind of interior selective herbicide of inhaling, better to most broad leaved weeds and following grassy weed preventive effect of 4 leaf phases, to the equal safety of corn, sugarcane, it is active to have cauline leaf processing preferably, have soil again and close down effect, efficiently, low-residual and to the environment friendliness, this Products Development helps pesticide producing and modern agricultural development, but it is on the high side, the cost of applying is higher, and the extensive use process is slow; Methoxone sodium is a kind of selectivity steroids herbicide after seedling, sedge weeds such as corn, the most of broad leaved weeds of sugarcane field and the rhizome of nutgrass flatsedge are had fabulous preventive effect, and weeding speed is fast, and its shortcoming is that the rhizome of nutgrass flatsedge is difficult for digging up the roots.

Embodiment 1

The ratio that according to the active princlple weight ratio is mesotrione/mcpa sodium=80/1 is composite with mesotrione and mcpa sodium homogeneous, and two kinds of compositions are used with and used separately separately and carry out the comparative efficacy test, the results are shown in Table one.

Embodiment 2

The ratio that according to the active princlple weight ratio is mesotrione/mcpa sodium=4/1 is composite with mesotrione and mcpa sodium homogeneous, and its comparative efficacy test the results are shown in Table one.

Embodiment 3

The ratio that according to the active princlple weight ratio is mesotrione/mcpa sodium=75/28 is composite with mesotrione and mcpa sodium homogeneous, and its comparative efficacy test the results are shown in Table one.

Embodiment 4

The ratio that according to the active princlple weight ratio is mesotrione/mcpa sodium=1/1 is composite with mesotrione and mcpa sodium homogeneous, and its comparative efficacy test the results are shown in Table one.

Embodiment 5

The ratio that according to the active princlple weight ratio is mesotrione/mcpa sodium=1/80 is composite with mesotrione and mcpa sodium homogeneous, and its comparative efficacy test the results are shown in Table one.

Table one: two kinds of active princlples use the data of carrying out the comparative efficacy test with the composition of each embodiment in sugarcane field separately:

In the contrast the listed data of table as can be seen, mesotrione and methoxone are mixed and use than using mesotrione or mcpa sodium that the integrated control effect of weeds is obviously improved separately, prove that both are mixed to enlarge to kill the grass spectrum, improve the preventive effect to weeds.From the listed data of last table as can be known, said composition has been gathered the advantage of inhaling class and methoxone sodium hormone herbicide in the mesotrione, and does not produce antagonism, to crop safety.Its herbicidal effect of this Herbicidal combinations not only is better than the simple superposition of usefulness separately, and has remedied the deficiency on each comfortable herbicidal spectrum.Said composition to sugarcane and succession crop safety thereof, all has preferably preventive effect to the grass family in the sugarcane field, broad-leaved and sedge weed in 2-6 leaf phase, the field spraying entirely of weeds 2-5 leaf phase that the sugarcane seedling is looked back, can significantly enlarge and kill the grass spectrum.Because the mesotrione price is higher, uses the herbicidal effect that Herbicidal combinations of the present invention reaches mesotrione and also can significantly reduce the control cost.This shows that using with of the two helps increasing sugarcane yield, alleviates peasant's labour intensity, has vast popularizing application prospect, can bring better economic benefit and social benefit.

Claims

1, a kind of Herbicidal combinations, pulvis by mesotrione and mcpa sodium is composite forms for it, and active ingredient is mesotrione and mcpa sodium, and the active ingredient weight ratio is in the composition: mesotrione/mcpa sodium=1/80～80/1.

2, Herbicidal combinations according to claim 1, its active ingredient weight ratio is: mesotrione/mcpa sodium=1/1～4/1.