CN109310089A

CN109310089A - Purposes of certain active ingredient combinations in root crop plant

Info

Publication number: CN109310089A
Application number: CN201780037681.0A
Authority: CN
Inventors: M·埃尔舍瑞夫
Original assignee: Bayer CropScience AG
Current assignee: Bayer CropScience AG
Priority date: 2016-06-15
Filing date: 2017-06-08
Publication date: 2019-02-05
Also published as: BR112018076034A2; WO2017216029A1

Abstract

The invention mainly relates to based on active constituent (i) foramsulfuron and/or its salt, (ii) iodine metsulfuron-methyl and/or its salt, optionally (iii) thiophene ketone sulphur is grand and/or the conjugate of its salt and (iv) one or more safeners or composition comprising active constituent (i), the conjugate of (ii), optionally (iii) and (iv) are used to prevent and treat in root crop plant, the purposes of noxious plant preferably in cassava.The invention further relates to the purposes that active constituent (i), the conjugate of (ii), optionally (iii) and (iv) or composition comprising active constituent (i), the conjugate of (ii), optionally (iii) and (iv) are used as the plant growth regulator of root crop plant, the plant growth regulator for being preferably used as cassava.In addition, the present invention relates to a kind of correlation method of noxious plant in prevention and treatment root crop plant and a kind of correlation methods for the plant growth for adjusting root tuber crop plants.

Description

Purposes of certain active ingredient combinations in root crop plant

The invention mainly relates to be based on active constituent (i) foramsulfuron (foramsulfuron) and/or its salt, (ii) Iodine metsulfuron-methyl (iodosulfuron-methyl) and/or its salt, the optionally grand (thiencarbazone- of (iii) thiophene ketone sulphur Methyl) and/or the conjugate of its salt and (iv) one or more safeners or include active constituent (i), (ii), optionally The composition of ground (iii) and the conjugate of (iv) is used to prevent and treat in root crop plant, the noxious plant preferably in cassava Purposes.The invention further relates to active constituent (i), (ii), optionally (iii) and (iv) the conjugate or include activity Ingredient (i), (ii), optionally (iii) and (iv) the conjugate composition be used as root crop plant plant growth Regulator, be preferably used as cassava plant growth regulator purposes.In addition, the present invention relates to a kind of prevention and treatment root crop plants The correlation method of middle noxious plant and a kind of correlation method for the plant growth for adjusting root tuber crop plants.

Cassava (Manihot esculenta Crantz) be several hundred million people-mainly Africa and to a certain extent In the main source of the carbohydrate of Asia and Latin America-.In Africa, the yield of cassava is generally relatively low, this is very It is due to the influence of weed competition or due to weed growth that is not preventing and treating or not preventing and treating sufficiently in big degree.Uproot weeding It (Hoe-weeding) is still a kind of common practice in cassava peasant.

The minutes for the 11st ISRTC-AB that 4-8 days in October, 2010 holds in Congo Kinshasa The 269-275 pages (The Proceedings of the 11thISRTC-AB, Kinshasa, Democratic Republic Congo, 4-8October 2010, pages 269-275) commercially available herbicide is reported for control of weeds in cassava Assessment result.Processing method therein includes application herbicide before seedling stage such as chloroacetanilide (chloroacetanilide), flutters Careless net (prometryn) or S-metolachlor (S-metolachlor).

In #17 crop recommendation (the Crop recommendation#17of the of the Ministry of Agriculture of Barbados Ministry of Agriculture of Barbados) in refer to the following herbicide for control of weeds in cassava: hundred Careless withered (paraquat) (optionally being mixed with diquat dibromide (diquat)), glyphosate (glyphosate), sulphosate (sulfosate), Pendimethalin (pendimethalin), isopropyl methoxalamine (metolachlor), butyl fluazifop (fluazifop-butyl), sethoxydim (sethoxydim) or propaquizafop (propaquizafop).

Cassava field after CN102428919A teaches one kind using mesotrione (mesotrion) as the seedling of active component Herbicide.

CN103392724A suggests using a kind of containing active constituent halosulfuronmethyl (halosulfuron), ethoxy fluorine grass Ether (oxyfluorfen) and the acyl for being selected from butachlor (butachlor), propisochlor (propisochlor) and isopropyl methoxalamine The ternary herbicidal composition of amine herbicide is as cassava field herbicidal.

GB 1,028,976 discloses a kind of plant (such as cassava, sweet potato or Chinese yam) for handling with storage organ Method comprising before harvesting in specific time range using replace benzoic acid herbicides spray plant.Wherein, preferably Herbicide such as (being optionally further substituted with) dichlorobenzoic acid, trichlorobenzoic acid or tetrachloro-benzoic acid.

African Crop Science Journal 1994,519-530 reports weeds and its prevents in cassava It controls.Wherein, following herbicide: metobromuron (metobromuron), fluometuron (fluometuron), prometryn is mainly tested (optionally being combined with ametryn (ametryne)), terbutryn (terbutryn), paraquat and diuron (diuron).

Planata Daninha, 2010,28 (4), 807-816, which is described, applies different weedings to the weeds in cassava Agent.Wherein, especially report herbicide such as diuron, metribuzin (metribuzin), isoxaflutole (isoxaflutole), Atrazine (atrazine), ametryn and several conjugates comprising the herbicide are to being grown in Brazilian Parana state (the State of Paran á, Brazil) two Cassava Cultivars effect.

2013/037955 A1 of WO refers to cyclopropyl-sulfonylamide (cyprosulfamide) as plant growth regulator.

WO 2016/079035A1 is related to comprising (i) indenes piperazine benfluralin (indaziflam) and (ii) metribuzin or isoxazole The Herbicidal combination of humulone is used to prevent and treat in root crop plant, the purposes of noxious plant preferably in cassava.

It is hitherto known to be used to prevent and treat removing for noxious plant or undesired plant in root crop plant in application Careless crop protection agents (herbicide) have the disadvantage, it is described the disadvantage is that (a) they do not have to specific noxious plant or have not Sufficient activity of weeding, (b) can be not wide enough with the noxious plant spectrum that herbicide is prevented and treated, and/or (c) herbicide is planted in root crop Selectivity in object and too low with the compatibility of root crop, so as to cause undesired damage and/or undesired root tuber The crop of crop reduces.

Generally speaking, the activity of weeding (above-mentioned aspect (a) and (b)) of the herbicide used in root crop plant at present And/or selectivity/compatibility (above-mentioned aspect (c)) still has much room for improvement.

There is still a need for the active compositions of high herbicidal of substitution to be used for selective application due to the above reasons, to prevent and treat block Noxious plant or undesired plant in root crop plants.

Surprisingly it has now been found that the group of the conjugate of certain active constituents or the conjugate comprising active constituent It closes object and shows required activity of weeding, and can selectively prevent and treat the noxious plant or undesired in root crop plant Plant.

The invention mainly relates to the conjugate of active constituent (active ingredient combination) or include the conjugate of active constituent Composition purposes, the purposes is

For preventing and treating the noxious plant in root crop plant,

And/or

The plant growth regulator being used as in root crop plant,

Wherein, the conjugate of active constituent is comprising following substance or by following material composition: (i) foramsulfuron And/or its salt, (ii) iodine metsulfuron-methyl and/or its salt and (iv) one or more safeners, and the wherein preferred safener Selected from isoxadifen (isoxadifen-ethyl) or cyclopropyl-sulfonylamide.

Preferably, the use of the composition of the conjugate the present invention relates to the conjugate of active constituent or comprising active constituent On the way, wherein the conjugate of active constituent includes following substance or by following material composition:

(i) foramsulfuron and/or its salt, (ii) iodine metsulfuron-methyl and/or its salt and (iv) isoxadifen,

Or

(i) foramsulfuron and/or its salt, (ii) iodine metsulfuron-methyl and/or its salt, (iii)

Thiophene ketone sulphur is grand and/or its salt and (iv) cyclopropyl-sulfonylamide.

Particularly, the use of the composition of the conjugate the present invention relates to the conjugate of active constituent or comprising active constituent On the way, wherein the conjugate of active constituent includes following substance or by following material composition:

(i) foramsulfuron and/or foramsulfuron sodium, (ii) iodine metsulfuron-methyl sodium and (iv) isoxadifen,

Or

(i) foramsulfuron and/or foramsulfuron sodium, (ii) iodine metsulfuron-methyl sodium, (iii) thiophene ketone sulphur is grand and (iv) ring Third sulfonamide.

The invention further relates to the purposes of the composition such as defined in the context of the present invention, the composition also includes one kind Or a variety of other components selected from following substance: common additive and other agrochemicals are living in formulation auxiliary agents, crop protection Property compound (that is, be different from component (i) as described above, (ii), optionally (iii) and (iv) agrochemical active chemical combination Object, i.e., except foramsulfuron and/or its salt, iodine metsulfuron-methyl and/or its salt, thiophene ketone sulphur is grand and/or its salt, isoxadifen and ring Agrochemically active compound other than third sulfonamide).

However, the conjugate (active ingredient combination) for the active constituent that ought be used in the context of the present invention is by institute as above The component (i) stated, (ii), when optionally (iii) and (iv) is formed, it means that in this case in the context of the invention Used in the conjugate of active constituent or the group of the conjugate comprising active constituent used in the context of the present invention It closes object and is free of any other (that is, not additional) agrochemically active compound.

Herein, term " other agrochemically active compounds " refers to " the The Pesticide that exists respectively Manual ", the 16th edition, The British Crop Protection Council and the Royal Soc.of Chemistry, agriculturalization in addition to component (i) as described above, (ii), optionally (iii) and (iv) enumerated in 2012 Learn reactive compound.

The composition of the conjugate of active constituent used according to the invention or the conjugate comprising active constituent is not Excellent activity of weeding only is shown in terms of preventing and treating noxious plant or the undesired plant in root crop plant, is also shown Out with the good compatibility of root crop plant, i.e. the conjugate of active constituent do not cause significantly damage and/or The crop of undesired root crop plant reduces.

The conjugate of active constituent (i), (ii), optionally (iii) and (iv) used according to the invention and according to this The composition comprising the conjugate used is invented, it can be in the damage to root crop plant in agronomically acceptable water Under flat, reach excellent (always) control of weeds.In addition, using conjugate used according to the invention and including the combination When the composition of object, the damage type observed endangers the lower and impacted root crop of smaller and/or severity and plants Object is able to mostly or fully restore from the damage type.

When active constituent (i) as defined herein, the conjugate of (ii), optionally (iii) and (iv) or as herein Definition comprising active constituent (i), (ii), optionally the composition of (iii) and (iv) be used for postemergence application when, can be particularly These advantageous effects are realized, as illustrating as explained in greater detail below.

It was found that the conjugate and root of active constituent (i) used according to the invention, (ii), optionally (iii) and (iv) The composition comprising the conjugate used according to the present invention does not have root crop plant growth, particularly cassava plant growth Significant negative effect, the plant growth, that is, plant height, plant vigor (vigorous growth) and population density (plant quantity/ha). Generally, it realizes to the extraordinary to excellent prevention and treatment of noxious plant, usually to dicotyledonous (broad-leaved) weeds about 80- 96%, to monocotyledon weed (dogstail) about 88-99%.

In addition, conjugate used according to the invention and the composition comprising the conjugate used according to the invention It can be used as the plant growth regulator of root crop plant, be preferably used as the plant growth regulator of cassava, to improve root tuber The harvesting yield (the especially weight of root tuber) of crop and/or plant growth (the especially root tuber work for improving root crop plant The growth of the leaf of object plant), in each case (not with the root crop plant that is handled without agrochemically active compound The control group of processing) it is compared.

Present invention is preferably related to the conjugate of the active constituent such as defined in the context of the present invention or comprising active constituent Conjugate composition purposes, wherein the root crop plant is selected from sweet potato (Ipomoea batatas), cassava and potato Chinese yam (plant species of Dioscorea (Dioscorea)), more preferably wherein the root crop plant is cassava.

The active constituent used in the context of the present invention is known per se, and is especially recorded in " The Pesticide Manual ", the 16th edition, The British Crop Protection Council and the Royal Soc.of Chemistry, 2012 and wherein cited document in.It illustrates above and below the present invention more fully below Active constituent as used herein.

It the conjugate of the active constituent used in the context of the present invention and certain uses in the context of the present invention The composition of conjugate comprising active constituent is equally known.The combination of the active constituent used in the context of the present invention Object and certain compositions comprising the conjugate used in the context of the present invention are commercially available.

Root tuber (also referred to as tuberous root) is the perennating organ that cannot be reserved nutrient between active growth stage in plant, thickens Root, to make plant from survival in this year to next year.

Stem tuber and root tuber should not be obscured.Stem tuber is abnormal branch (modified shoots), and root tuber is abnormal root (modified roots)。

Root tuber is abnormal lateral root, and the function of storage organ is played after expanding.It the enlarged area of root tuber or storage root can be in root End or intermediate generation are related to entire root.Therefore, root tuber is different from tuber growth starting point (origin), but function and appearance phase Seemingly.The example of plant with apparent root tuber includes sweet potato, cassava, Chinese yam and dahlia (dahlia).

Cassava, also known as cassava (manioc), yuca, balinghoy or kamoteng kahoy (in Philippine), Tabolchu (in Northeastern India), mogo (in Africa), tapioca (mandioca), tapioca starch root (tapioca- Root), manioc root (kappa) (mainly in India) and (a kind of root of Beijing euphorbia for originating in South America tapioca starch root (manioc root) Section (Euphorbiaceae) (Euphorbia (spurge)) woody brush (woody shrub)), as annual crop because of it Edible starch root tuber (main source of carbohydrate), and cultivated extensively in subtropical and tropical zones.Work as Tapioca chips When dry powdering (or pearl shape) extract, referred to as tapioca starch；Form that it ferments, thin and flaky is referred to as Gary (garri)。

In torrid areas, cassava is the third-largest edible carbohydrate source for being only second to rice and corn.Cassava is sending out Country is main staple food in exhibition, to provide basic diet more than 500,000,000 people.Cassava is most drought-resistant one of crop, Neng Gou It is grown on dead soil.Nigeria is maximum cassava producing country in the world, and Thailand is the largest dry cassava exported country.

Cassava grows very poor in weedy field, therefore and generates less and smaller storage root.

Chinese yam is the adopted name of some plant species in the Dioscorea (Dioscoreaceae) for be formed edible stem tuber.Non- Continent, Asia, Latin America, the Caribbean and Oceania, they are the perennial grass lianas cultivated to consume its starch stem tuber Plant.The cultivar of Chinese yam is various.Although some kinds of sweet potato are also known as potato in some areas of America & Canada Chinese yam, but it is not a part of Dioscoreaceae (Dioscoreaceae).

Chinese yam is monocotyledon, and lily is related with dogstail.Chinese yam stem tuber originates in Africa and Asia, and size is from pony Bell potato is differed to more than 60 kilograms.600 kinds of Chinese yam kinds are had more than, 95% in these crops is grown in Africa.

According to the present invention, statement " composition " includes comprising active constituent (i) as defined herein, (ii), optionally (iii) and the composition of the conjugate of (iv), and it can be used for canonical form and system in various acceptable or agrochemicals In agent, such as in single " premix " form.

What is used used in the conjugate used in the context of the present invention and in the context of the present invention includes institute Active constituent (i) used in the composition of conjugate, (ii), optionally (iii) and (iv) are stated, it can be for by single activity The spraying mixture of the combination of the individual preparation composition of compound, such as " tank mix (tank-mix) " or the combination Object can be single active constituent, and when applying in a sequential manner, i.e. in the reasonable short time, (such as a few hours are (and preferred Less than 24 hours)) in one by one apply when combined use.

Active constituent (i) used in the conjugate used in the context of the present invention, (ii), optionally (iii) and (iv) include all stereoisomer and its mixture, particularly also include racemic mixture and-if possible exist pair If reflecting isomeric compound-respective biological activity enantiomter.

In this specification context, if the simple format of the adopted name using reactive compound, at every kind In the case of include all conventional derivatives (such as ester and salt) and isomers, especially optical isomer, especially with one kind Or a variety of commercially available forms.It in each case further include all other if adopted name indicates ester or salt Conventional derivatives, such as other esters and salt, free acid and neutral compound and isomers, especially optical isomer, especially Be by it is one or more it is commercially available in the form of.The chemical name of given compound indicates that at least one is covered by common name Compound, usually preferred compound.For sulfonamides such as sulfonylurea, salt further includes exchanging sulphonyl by cation Hydrogen atom on amido and the salt formed.

The salt of the compound used in the context of the present invention can be with respective alkali metal salt, alkali salt or ammonium salt Form uses, preferably in the form of respective alkali metal salt, more preferably in the form of respective sodium salt or sylvite, most preferably with each From sodium salt form.

Active constituent (i) used in the conjugate used in the context of the present invention, (ii), optionally (iii) and (iv) it is known per se, and is especially recorded in " The Pesticide Manual ", the 16th edition, The British Crop Protection Council and the Royal Soc.of Chemistry, 2012 and wherein cited document In.

Component (i):

Foramsulfuron and its salt are known, and are recorded in such as 0 757 679 A1 of EP.

Preferred component (ii) is that (IUPAC-: 1- (4,6- dimethoxy is phonetic for foramsulfuron in the context of the present invention Pyridine -2- base) -3- [2- (formyl-dimethylamino) -5- formamido phenyl sulfonyl] urea, CAS accession number 173159-57- 4) and its sodium salt, i.e. foramsulfuron sodium.

Component (ii):

Iodine metsulfuron-methyl, its ester and its salt are known, and are recorded in such as 92/13845 A1 of WO.

Preferred component (ii) in the context of the present invention are as follows:

Iodine metsulfuron-methyl (IUPAC-: 4- iodo -2- [(4- methoxyl group -6- methyl-1,3,5- triazine -2- base) carbamyl Base sulfamoyl] methyl benzoate, CAS accession number 144550-06-1) and iodine metsulfuron-methyl sodium (IUPAC-: ({ [5- iodo -2- (methoxycarbonyl) phenyl] sulfonyl } carbamoyl) (4- methoxyl group -6- methyl-1,3,5- triazine -2- bases) sodium amide, CAS accession number 144550-36-71).

It is highly preferred that the component (ii) of the conjugate of active constituent includes iodine metsulfuron-methyl and/or iodine metsulfuron-methyl sodium or by iodine Metsulfuron-methyl and/or iodine metsulfuron-methyl sodium composition, particularly preferred iodine metsulfuron-methyl sodium is as component (ii).

Optional component (iii):

Thiophene alkene carbazones (thiencarbazone), its ester and its salt are known, and are recorded in such as WO 01/ In 005788 A1.

Preferred component (iii) is grand (IUPAC-: the 4- [(4,5- dihydro -3- first of thiophene ketone sulphur in the context of the present invention Oxygroup -4- methyl -5- oxo -1H-1,2,4- triazol-1-yls) carbonyl sulfamoyl] -5- methylthiophene -3- methyl formate, CAS Accession number 317815-83-1).

It is highly preferred that the component (iii) of the conjugate of active constituent includes that thiophene ketone sulphur is grand or formed by thiophene ketone sulphur is grand.

Component (iv):

The safener for the component (iv) being suitable as in the context of the invention is known per se, and is recorded in such as WO The 25th row of page 87 is to the 25th row of page 100 and wherein in cited document in 2013/092500 A1.

The safener for the component (iv) being preferably used as in the context of the invention is known and is recorded in such as WO 95/ (IUPAC-: 4,5- dihydro -5,5- diphenyl -1,2-oxazole -3- methyl formate, CAS are stepped on isoxadifen in 07897 A1 Record 163520-33-0) and cyclopropyl sulphur that is known and being recorded in such as 6,251,827 B1 of 99/16744 A1 of WO and US Amide (IUPAC-: N- [4- (cyclopropylcarbamoyl) phenyl sulfonyl] -2- methoxy benzamide, CAS accession number 221667-31-8)。

It is highly preferred that the component (iv) of the conjugate of active constituent includes isoxadifen or cyclopropyl-sulfonylamide or by double benzene Oxazole acid or cyclopropyl-sulfonylamide composition.

The conjugate of active constituents that many uses in the context of the present invention or comprising activity as defined herein at The composition of the conjugate divided is known per se.

For example, from foramsulfuron known to EP 0 790 771 A1 or WO 00/08932 and its salt can with safener and/ Or other herbicides are used in combination.95/08919 A1 of WO discloses iodine metsulfuron-methyl, its ester and/or its salt and certain safeners Conjugate.03/026426 A1 of WO discloses grand (a) thiophene ketone sulphur, (b) foramsulfuron or iodine metsulfuron-methyl sodium and optionally (c) The conjugate of one or more safeners.03/073853 A2 of WO refers to (a) foramsulfuron or its salt, (b) iodine metsulfuron-methyl Or the conjugate of its salt, (c) other certain herbicides and one or more safeners.

The conjugate of active constituents that many uses in the context of the present invention or comprising activity as defined herein at Point the composition of conjugate be commercially available (such as the trade (brand) name to be mentioned in US2014/187515A1)。

According to the present invention, the conjugate of active constituent as defined herein or as defined herein comprising conjugate Composition includes the conjugate of the active constituent of herbicidally effective amount, and may include other components, such as different types of In agrochemically active compound and/or formulation auxiliary agents and/or crop protection common additive or its can be with these substances one It rises and uses.

According to the present invention, the conjugate of active constituent as defined herein or as defined herein comprising conjugate Composition can be applied in a manner of applying (split application) in batches at any time.Another possibility is single Active constituent (i), (ii), optionally (iii) and (iv) include active constituent (i), (ii), optionally (iii) and (iv) Conjugate (sequence apply) is applied in the form of portioning, such as after preemergence application out, carry out out postemergence application, or going out Mid-term or later period application after early stage application after seedling, after emergence.

It is preferred that simultaneously or almost simultaneously apply active constituent (i) as defined herein, (ii), optionally (iii) and (iv).Hereinafter, be almost administered simultaneously active constituent (i) as defined herein and (ii) mean active constituent (i), (ii), optionally (iii) and (iv) exists in 24 hours, preferably in 12 hours, more preferably in 6 hours, even more preferably It is applied in 3 hours.

In an especially preferred embodiment, active constituent (i) as defined herein, (ii), optionally (iii) it is used together, i.e., is used simultaneously with (iv).Therefore, in particularly preferred embodiments, using comprising such as herein The active constituent (i) of definition, (ii), optionally (iii) and (iv) composition.

In a preferred embodiment, active constituent (i) used according to the invention, (ii), optionally (iii), (iv) or it is used according to the invention comprising active constituent (i), (ii), optionally (iii) and (iv) composition every season only Application is primary.It was found that the primary active constituent (i) used according to the invention of every season application, (ii), optionally (iii) and (iv) Or it used according to the invention sufficiently achieves comprising active constituent (i), (ii), the optionally composition of (iii) and (iv) at this Effect described in the text up and down is invented, especially with regard to activity of weeding (above-mentioned aspect (a) and (b)) and/or selectivity/compatibility The effect of (above-mentioned aspect (c)).

In a preferred embodiment, active constituent (i) used according to the invention, (ii), optionally (iii), (iv) or it is used according to the invention include active constituent (i), (ii), the optionally every Gregorian calendar of the composition of (iii) and (iv) It applies in year once, twice or thrice, i.e., it is annual to apply once, apply twice or apply three times according to the Gregorian calendar.

In a preferred embodiment, active constituent (i) used according to the invention, (ii), optionally (iii), (iv) or it is used according to the invention include active constituent (i), (ii), the optionally every Gregorian calendar of the composition of (iii) and (iv) Year application is primary, i.e., according to the Gregorian calendar, annual application is once.

In a preferred embodiment, active constituent (i) used according to the invention, (ii), optionally (iii), (iv) or it is used according to the invention comprising active constituent (i), (ii), the optionally composition of (iii) and (iv) about 12 It applies once, i.e., is applied in about 12 months primary in a month.

Using active constituent (i) as defined herein, (ii), optionally (iii) and (iv) or as defined herein Comprising active constituent (i), (ii), optionally the composition of (iii) and (iv) when, the effect observed is shown as more effectively Herbicidal efficacy, prevention and treatment can not prevent and treat so far species (active blank (activity gaps)), extended administration period and/ Or the required number individually applied reduced, and therefore for the user, economically all more have with ecological view The control of weeds system of benefit.

Preferably, in postemergence application active constituent (i) as defined herein, (ii), optionally (iii) and (iv) Conjugate or as defined herein include active constituent (i), (ii), the optionally conjugate of (iii) and (iv) combination Object.

Conjugate and the group comprising conjugate used according to the invention in active constituent used according to the invention It closes in object, (i) weight ratio of the total amount of foramsulfuron and its salt and the total amount of (ii) iodine metsulfuron-methyl and its salt is preferably in 100:1 In the range of to 5:1, more preferably in the range of 50:1 to 10:1, and particularly preferably in the range of 40:1 to 20:1.

The conjugate of active constituent used according to the invention and/or used according to the invention comprising conjugate In composition, (i) total amount of foramsulfuron and its salt and (iv) safener (especially isoxadifen and cyclopropyl-sulfonylamide) The weight ratio of total amount preferably exist in the range of 8:1 to 1:3, more preferably in the range of 5:1 to 1:2, and particularly preferably In the range of 3:1 to 2:3.

If using optional component (iii) thiophene ketone sulphur is grand and/or its salt, in active constituent used according to the invention Conjugate and the composition comprising conjugate used according to the invention in, (i) total amount of foramsulfuron and its salt with (iii) thiophene ketone sulphur is grand and its weight ratio of the total amount of salt is preferably in the range of 10:1 to 1:2, more preferably in the model of 5:1 to 1:1 In enclosing, and particularly preferably in the range of 3:1 to 3:2.

As defined herein, the preferred rate of application of the active constituent used in the context of the present invention [is expressed as g A.i./ha, the i.e. grams of per hectare active constituent] as follows:

(i) foramsulfuron and its salt preferably in the range of 10 to 90g a.i./ha ratio, more preferably 20 It ratio in the range of to 60g a.i./ha and is particularly preferably applied with ratio in the range of 25 to 50g a.i./ha With,

And/or

(ii) iodine metsulfuron-methyl and its salt preferably in the range of 0.25 to 4.9g a.i./ha ratio, more preferably with Ratio in the range of 0.5 to 2.5g a.i./ha and particularly preferably in the range of 0.75 to 1.50g a.i./ha Ratio application.

As defined herein, the preferred rate of application of the preferred component (iv) used in the context of the present invention is such as Under:

Isoxadifen preferably in the range of 10 to 90g a.i./ha ratio, more preferably 20 to 60g Ratio in the range of a.i./ha and particularly preferably with ratio application in the range of 25 to 50g a.i./ha,

Cyclopropyl-sulfonylamide preferably in the range of 5 to 60g a.i./ha ratio, more preferably 10 to 50g Ratio in the range of a.i./ha and particularly preferably with ratio application in the range of 12 to 30g a.i./ha.

If using optional component (iii) thiophene ketone sulphur is grand and/or its salt, in active constituent used according to the invention Conjugate and the composition comprising conjugate used according to the invention in

(iii) thiophene ketone sulphur is grand and its salt preferably in the range of 4 to 25g a.i./ha ratio, more preferably with 6 to Ratio in the range of 10g a.i./ha and particularly preferably with ratio application in the range of 8 to 15g a.i./ha.

Preferably, active constituent (i) as defined herein used according to the invention, (ii), optionally (iii) and (iv) total amount is no more than 200g/ha, more preferably no more than 150g/ha and is particularly preferably no more than 100g/ha.

Active constituent (i), (ii), optionally (iii) and (iv) as defined herein are more preferably with more excellent as described above The ratio (such as term " more preferable " after defined in) of choosing and particularly preferably with particularly preferred ratio as described above (such as Defined in after term " particularly preferred ") application.

In addition, active constituent (i) as defined herein, (ii), optionally (iii) and (iv) can be with other agriculturalization Reactive compound (such as selected from other safeners, fungicide, insecticide, other herbicides and other plant growth regulating Agent) it is used together, or be used together with formulation auxiliary agents with additive common in crop protection.Additive be for example fertilizer and Toner.The preferred above-mentioned weight ratio for active constituent (i), (ii), optionally (iii) and (iv) in each case, and Above-mentioned rate of application or rate of application range for active constituent (i), (ii), optionally (iii) and (iv).

In Colombia's cassava field of report, most important and most harmful weeds type is (African Crop Science Journal 1994,519-530): fern (Pteridium aquilinum L.Kuhn), cogongrass (Imperata Cylindrica L.Beauv.), molasses grass (Melinis ninutiflora Beauv.), bur (Sida acuta Burm F.), the rhizome of nutgrass flatsedge (Cyperus rotundus L.), Drilgrass (Commelina diffusa Burm F.) subspecies Diffuse J.K.Morton, Ageratum conyzoides (Ageratum conyzoides L.) and purslane (Portulaca oleraceae L.), the rhizome of nutgrass flatsedge (purple nutsedge), Rottboellia exaltata L. F (Rottboellia exaltata (Lour) Clayton) (Rottboellia exaltata (Raoul grass)), false jowar (Sorghum halepense L.Pers) (Johnson grass (Johnson grass)) and kind Potato category (Ipomoea sp.) (morning glory (morning glory)).

In Nigeria, broad-leaved species are the most common weeds of all regions, averagely account for the 71- of the whole species recorded 78%.There was only 17-19% in existing weed species is dogstail, and 4-7% is nutgrass flatsedge.In entire survey area, there are five Kind weed species, i.e. Ageratum conyzoides, alternanthera (Alternenthera sessilis L.R.Br.ex Roth), Brazilian sensitive plant (Mimosa invisa Mart), herba digitariae (Digitaria horizontalis Willd) and big broomcorn millet (Panicum maximum Jacq)。

In the Nigeria west and south, observe that annual grassy weeds especially broadleaf weeds category is most common in cassava, and And universal type is hairy euphorbia (Euphorbia hirta L.) and Talinum crassifolium (Talinum triangulate Willd).

African Crop Science Journal volume 1994,2, the 4th phase, the 519-530 pages summarizes in Buddhist nun day Most common ten kinds of weed species in the cassava field of the Wu Muaxiya (Umuahia) in Leah south:

Ageratum conyzoides (Ageratum conyzoide), the climing beans of hair (Calopogonium mucunoides), alternanthera (Alternenthera sessilis), Boreiria ocymoides, upright Commeline communis (Commelina erecta), perfumed hair cream or oil Blue (Chromolaena odorata), Brazilian sensitive plant (Mimosa invisa), match end (Commelina Benghalansis), plumage awns chrysanthemum (Tridax procumbens), Brachiaria delfexa, African mesona (Platostoma africanum), digitaria ciliaris (Digitaria adscendens), golden waist arrow (Synedrella Nodiflora), big broomcorn millet (Panicum maximum), the rhizome of nutgrass flatsedge (Cyperus rotundus), cyperue esculentus (Cyperus esculentus)。

Other relevant weed species present in Nigeria's cassava field are (dogstail, nutgrass flatsedge and broadleaf weeds): white Thatch (Imperata cylindrica), Bermuda grass (Cynodon dactylon), more fringe Chinese pennisetum (Pennisetum Polystachion), Mariscus alternifolius, painted euphorbia (Euphorbia heterophylla), Talinum crassifolium (Talinum triangulare)。

The associated parasitic weed species occurred in cassava field (such as in Nigeria) are Cuscuta australis (Cuscuta australis)。

The conjugate of active constituent as defined herein or the as defined herein conjugate comprising active constituent Economically important harmful unifacial leaf and dicotyledonous harmful of the composition to the wide spectrum in root crop plant, particularly cassava Plant has activity of weeding outstanding.

In the context of the present invention, " prevention and treatment " indicates compared with untreated noxious plant, and the growth of noxious plant is aobvious Writing reduces.Preferably, the growth of noxious plant substantially reduce (60-79%), more preferable noxious plant growth it is most of or It is suppressed (80-100%) completely, and particularly the growth of noxious plant is nearly completely or completely suppressed (90-100%).

Preferably, the present invention relates to the conjugate of active constituent as defined herein or as defined herein comprising living Property ingredient conjugate composition purposes, one of, several or whole noxious plants be selected from following weed species: wrinkled giant hyssop Cirsium (Ageratum spp.), the climing Macroptilium of hair (Calopogonium spp.), Alternanthera (Alternanthera spp.), Borreria (Boreiria spp.), Commeline communis category (Commelina spp.), perfumed hair cream or oil Cymbidium (Chromolaena spp.), Mimosa (Mimosa spp.), plumage awns Chrysanthemum (Tridax spp.), Brachiaria (Brachiaria spp.), mesona category (Platostoma spp.), knotgrass (Digitaria spp.), golden waist arrow category (Synedrella spp.), Panicum (Panicum spp.), Cyperus (Cyperus spp.), cogon (Imperata spp.), Cynodon (Cynodon Spp.), Pennisetum (Pennisetum spp.), Mariscus Gaertn (Mariscus spp.), Euphorbia (Euphorbiaspp.), Fameflower (Talinum spp.), Cyclosorus (Pteridium spp.), molasses grass category (Melinis Spp.), chrysanthemum harvest spp (Sida spp.), Portulaca (Portulaca spp.), Rottboellia exaltata L. F category (Rottboellia Spp.), sorghum (Sorghum spp.), Mexician scammony category (Ipomea spp.), talon eria (Dactyloctenium spp.), Spigelia (Spigelia spp.), punarnava category (Boerhaavia spp.), Aspilia belong to, Aneilima belongs to, luxuriant thatch category (Hyparrhenia spp.), Andropogon (Andropogon spp.), Paspalum (Paspalum spp.), nakedflower murdannia herb category (Rhynchelytrum spp.), herba eleusines indicae category (Eleusine spp.), setaria (Setaria spp.), thorn capsule fiber crops category (Triumfetta spp.), false horsewhip category (Stachytarpheta spp.), beggar-ticks (Desmodium spp.), thousand days Red category (Gomphrena spp.), Acacia (Tephrosia spp.), thorn bud fruit category (Acanthospermum spp.), Bee saage category (Hyptis spp.), Cenchrus (Cenchrus spp.), smallpox category (Urena spp.) of ancient India, Vernonia (Vernonia spp.), spiderflower category (Cleome spp.), Crotalaria (Crotalaria spp.), water joy centipede category (Kyllingaspp.), Corchorus (Corchorus spp.), Ipomoea (Ipomoea spp.), Mitraearpus (Mitracarpus spp.), prostrate wedelia herb category (Melanthera spp.), Centrosema category (Centrosema spp.), tassel flower Belong to (Emilia spp.), crotons category (Croton spp.), Leafflower (Phyllanthus spp.), Passiflora (Passiflora spp.), carpetweed category (Axonopus spp.), oldenlandia diffusa category (Oldenlandia spp.), Schwenckia category, Acalypha (Acalypha spp.), Coleus (Solenostemon spp.), feather cockscomb category (Celosia spp.), anil (Indigofera spp.), Heterotis category, Herba Cancriniae lasiocarpae category (Acmella spp.), silver Albizzia (Leucaena spp.), punarnava category (Boerhavia spp.), Borreria (Spermacoce spp.), ball rice Grass belongs to (Oplismenus spp.) and genus fimbristylis (Fimbristylis spp.).

In a preferred aspect, the present invention relates to the conjugate of active constituent as defined herein or as determined herein The purposes of the composition of the conjugate comprising active constituent of justice, one of, several or whole noxious plants are selected from following miscellaneous Careless species: the climing Macroptilium of ageratum, hair, Alternanthera, Borreria, Commeline communis category, perfumed hair cream or oil Cymbidium, Mimosa, plumage awns chrysanthemum Category, Brachiaria, mesona category, knotgrass, golden waist arrow category, Panicum, Cyperus, cogon, Cynodon, Pennisetum, brick Seedling category, Euphorbia, Fameflower, Cyclosorus, molasses grass category, chrysanthemum harvest spp, Portulaca, Rottboellia exaltata L. F category, sorghum, Mexician scammony category, Talon eria, Spigelia, punarnava category, Aspilia belong to, Aneilima belongs to, luxuriant thatch category, Andropogon, Paspalum, nakedflower murdannia herb Category, herba eleusines indicae category, setaria, thorn capsule fiber crops category, false horsewhip category, beggar-ticks, Gomphrena, Acacia, thorn bud fruit category, mountain Fragrant category, Cenchrus, smallpox category, Vernonia and spiderflower category of ancient India.

Particularly, the conjugate of active constituent as defined herein or the knot as defined herein comprising active constituent The composition for closing object be used to prevent and treat noxious plants a kind of, several or all selected from following weed species: ageratum, Mao Man Macroptilium, Alternanthera, Borreria, Commeline communis category, perfumed hair cream or oil Cymbidium, Mimosa, plumage awns Chrysanthemum, Brachiaria, mesona category, horse Tang belongs to, golden waist arrow category, Panicum, Cyperus, cogon, Cynodon, Pennisetum, Mariscus Gaertn, Euphorbia, Fameflower, Cyclosorus, molasses grass category, chrysanthemum harvest spp, Portulaca, Rottboellia exaltata L. F category, sorghum, Mexician scammony category, talon eria, Spigelia, Huang are thin Heart category, beggar-ticks, Gomphrena, Acacia, thorn bud fruit category, bee saage category, Cenchrus, smallpox category of ancient India, Vernonia and Spiderflower category.

More particularly, the conjugate of active constituent as defined herein or as defined herein comprising active constituent The composition of conjugate be used to prevent and treat noxious plants a kind of, several or all selected from following weed species: ageratum, hair Climing Macroptilium, Alternanthera, Borreria, Commeline communis category, perfumed hair cream or oil Cymbidium, Mimosa, plumage awns Chrysanthemum, Brachiaria, mesona category, Knotgrass, golden waist arrow category, Panicum, Cyperus, cogon, Cynodon, Pennisetum, Mariscus Gaertn, Euphorbia, Talinum crassifolium Category, Cyclosorus, molasses grass category, chrysanthemum harvest spp, Portulaca, Rottboellia exaltata L. F category, sorghum, Mexician scammony category, talon eria, Spigelia and Punarnava category.

Particularly, can be mentioned that can some representative unifacial leaves of conjugate prevention and treatment and broadleaf weed plant through the invention The example of object group.

At a more specific aspect, the present invention relates to the conjugate of active constituent as defined herein or as herein The purposes of the composition of the conjugate comprising active constituent of definition, one of, several or whole noxious plants are selected from: victory is red The climing beans of Ji, hair, alternanthera, Boreiria ocymoides, upright Commeline communis, poolroot, Brazilian sensitive plant, match end, plumage awns It is chrysanthemum, Brachiaria delfexa, African mesona, digitaria ciliaris, herba digitariae (Digitaria horizontalis), golden waist arrow, big Broomcorn millet, the rhizome of nutgrass flatsedge, cyperue esculentus, cogongrass, Bermuda grass, more fringe Chinese pennisetums, napier grass (Pennisetum purpureum), purple Chinese pennisetum (Pennisetum violaceum), Mariscus alternifolius, painted euphorbia, hairy euphorbia (Euphorbia hirta), Talinum crassifolium, fern (Pteridium aquilinum), molasses grass (Melinis ninutiflora), bur (Sida Acuta), white back bur (Sida rhombifolia), Drilgrass (Commelina diffusa), purslane (Portulaca oleraceae), Rottboellia exaltata L. F (Rottboellia exaltata), Rottboellia exaltata L. F (Rottboellia Cochinchinensis), Sorghum halepense (Sorghum halepense), trilobated leaf potato (Ipomea triloba), Egyptian grass (Dactyloctenium aegyptium), Brachiara lata, Spigelia anthemia, upright punarnava (Boerhaavia erecta), Aspilia africana, Aneilima beniniense, enveloping bract bud (Hyparrhenia involucrate), Guyana bluestem grass (Andropogon gayanus), Paspalum conjugatum (Paspalum Conjugatum), Herba Paspali orbicularis (Paspalum orbiculatum), nakedflower murdannia herb (Rhynchelytrum repens), Cowhells Careless (Eleusine indica), Setaria barbata, Setaria megaphylla, Triumfetta cordifolia, Blue butterfly ape tail tree (Stachytarpheta cayennensis), scorpion tail beggarweed (Desmodium scorpiurus), honeysuckle flower Amaranth (Gomphrena celosioides), Tephrosia bracteolata, bristle thorn bud chrysanthemum (Acanthospermum Hispidum), bee saage (Hyptis suaveolens), gakhuri grass (Cenchrus biflorus), Rose Mallow Root (Urena Lobata), Mongolian ringdove chrysanthemum (Vernonia ambigua), sweet vernal grass (Cleome viscosa), Cuscuta australis (Cuscuta australis), corchorus olitorius (Corchorus olitorius), lid dehiscent fruit (Mitracarpus Villosus), Melanthera scandens, Centrosema (Centrosema pubescens), suede tassel chrysanthemum (Emilia Coccinea), bristle crotons (Croton hirtus), phyllanthus amatusniruri (Phyllanthus amarus), three Room jutes (Corchorus trilocularis), passion plant (Passiflora foetida), enveloping sweet potato (Ipomoea Involucrate), carpetweed (Axonopus compressus), Herba Hedyotidis Corymbosae (Oldenlandia corymbosa), fibre Pig-iron amaranth (Acalypha ciliata), Guyana Shi Wenke grass (Schwenckia americana), Solenostemon Monostachyus, silver-colored spinach (Celosia trigyna), wooden indigo plant (the Indigofera hirsute), tendril tomonea of hair (Heterotis rotundifolia), short tongue spend golden button (Acmella brachyglossa), white popinac (Leucaena Leucocephala), punarnava (Boerhavia diffusa), sweet basil spermacoce latifolia (Spermacoce ocymoides), palpus awns Bamboo grass (Oplismenus burmannii), beach louse grass (Fimbristylis littoralis), cyperus iria (Cyperus Iris) and kyllinga brevifolia (Kyllinga erecta) is erect.

At a preferred aspect, the present invention relates to the conjugate of active constituent as defined herein or as herein The purposes of the composition of the conjugate comprising active constituent of definition, one of, several or whole noxious plants are selected from: victory is red The climing beans of Ji, hair, alternanthera, Boreiria ocymoides, upright Commeline communis, poolroot, Brazilian sensitive plant, match end, plumage awns Chrysanthemum, Brachiaria delfexa, African mesona, digitaria ciliaris, herba digitariae, golden waist arrow, big broomcorn millet, the rhizome of nutgrass flatsedge, cyperue esculentus, cogongrass, dog Root of the tooth, more fringe Chinese pennisetums, napier grass, purple Chinese pennisetum, Mariscus alternifolius, painted euphorbia, hairy euphorbia, Talinum crassifolium, Fern, molasses grass, bur, white back bur, Drilgrass, purslane, Rottboellia exaltata L. F (Rottboellia exaltata), Rottboellia exaltata L. F (Rottboellia cochinchinensis), Sorghum halepense, trilobated leaf potato, Egyptian grass, Brachiara lata, Spigelia Anthemia, upright punarnava, Aspilia africana, Aneilima beniniense, Hyparrhenia Involucrate, Guyana bluestem grass, Paspalum conjugatum, Herba Paspali orbicularis, nakedflower murdannia herb, herba eleusines indicae, Setaria barbata, Setaria megaphylla, Triumfetta cordifolia, blue butterfly ape tail tree, scorpion tail beggarweed, Herba Gomphrenae celosioidis, Tephrosia bracteolata, bristle thorn bud chrysanthemum, bee saage, gakhuri grass, Rose Mallow Root, Mongolian ringdove chrysanthemum, sweet vernal grass and south Square Semen Cuscutae.

Particularly, the conjugate of active constituent as defined herein or the knot as defined herein comprising active constituent The composition for closing object be used to prevent and treat a kind of, several or whole noxious plants selected from the following: the climing beans of Ageratum conyzoides, hair, alternanthera, Boreiria ocymoides, upright Commeline communis, poolroot, Brazilian sensitive plant, match end, plumage awns chrysanthemum, Brachiaria Delfexa, African mesona, digitaria ciliaris, herba digitariae, golden waist arrow, big broomcorn millet, the rhizome of nutgrass flatsedge, cyperue esculentus, cogongrass, Bermuda grass, more fringe wolf tails Grass, Mariscus alternifolius, painted euphorbia, hairy euphorbia, Talinum crassifolium, fern, molasses grass, bur, Drilgrass, dent Amaranth, Rottboellia exaltata L. F (Rottboellia exaltata), Sorghum halepense, trilobated leaf potato, Egyptian grass, Brachiara lata, Spigelia anthemia, upright punarnava, scorpion tail beggarweed, Herba Gomphrenae celosioidis, Tephrosia bracteolata, bristle thorn bud Chrysanthemum, bee saage, gakhuri grass, Rose Mallow Root, Mongolian ringdove chrysanthemum, sweet vernal grass and Cuscuta australis.

More particularly, the conjugate of active constituent as defined herein or as defined herein comprising active constituent The composition of conjugate be used to prevent and treat a kind of, several or whole noxious plants selected from the following: the climing beans of Ageratum conyzoides, hair, lotus seeds Grass, Boreiria ocymoides, upright Commeline communis, poolroot, Brazilian sensitive plant, match end, plumage awns chrysanthemum, Brachiaria Delfexa, African mesona, digitaria ciliaris, herba digitariae, golden waist arrow, big broomcorn millet, the rhizome of nutgrass flatsedge, cyperue esculentus, cogongrass, Bermuda grass, more fringe wolf tails Grass, Mariscus alternifolius, painted euphorbia, hairy euphorbia, Talinum crassifolium, fern, molasses grass, bur, Drilgrass, dent Amaranth, Rottboellia exaltata L. F (Rottboellia exaltata), Sorghum halepense, trilobated leaf potato, Egyptian grass, Brachiara lata, Spigelia anthemia, upright punarnava and Cuscuta australis.

If if will use the conjugate of active constituent used according to the invention or in the context of the present invention The composition of conjugate comprising active constituent is applied to soil surface before germination, then weeds can be prevent completely to come up, Or weed growth until its reach cotyledon period, but then its stop growing and finally after three to four weeks completely death.

If if will use the conjugate of active constituent used according to the invention or in the context of the present invention The composition of conjugate comprising active constituent is applied to the green parts of plant after emergence, then grows equally non-after treatment Sharply stop in often short time, and ruderal plant rest on administration time point growth phase or its in certain time It is completely dead afterwards, to eliminate by this method at very early time point and in lasting mode to the harmful weeds of crop plants Competition.

The purposes of the conjugate of active constituent used according to the invention and use in the context of the present invention comprising live Property ingredient conjugate composition purposes be characterized in that quickly start and lasting herbicide effect.

Particularly, in application such as the conjugate of active constituent that defines in the context of the present invention and such as of the invention When the composition of the conjugate defined in context comprising active constituent, rate of application can be reduced, broader spectrum of broad-leaved can be prevented and treated The duration that weeds and Gramineae ruderal, herbicide effect can occur more quickly, act on can it is longer, can preferably prevent and treat nocuousness Plant and only carry out primary or seldom time application, and administration period can extend.

From the perspective of qualitative and quantitative, above-mentioned characteristics and advantages are beneficial to control of weeds practice, to keep crops From the influence of undesirable competitive plant, so that it is guaranteed that and/or raising yield.From the point of view of the characteristic, these conjugates are bright The aobvious state of the art for having surmounted this field.

Although the conjugate of inventive compound has excellent activity of weeding to unifacial leaf and broadleaf weed, Crop plants are only by lesser degree of damage, if any.

In addition, some compositions of the invention have excellent growth regulating characteristic to crop plants.They are with the side of regulation Formula participates in the metabolism of plant, so as to be dehydrated for exciting the direct effect to plant component, and for example, by causing Promote to harvest with stunted growth.In addition, they are further adapted for general prevention and treatment and inhibit undesirable nutrient growth, while not breaking Bad plant.In most of unifacial leaves and dicotyledonous crops inhibit nutrient growth be very important because can reduce in this way or Production loss caused by being avoided completely because of lodging.

Due to weeding and plant growth regulating characteristic, the present composition can be used for preventing and treating genetic modification crop plants or logical Cross the noxious plant in the crop plants that mutation/selection obtains.In general, these crop plants are by specific, advantageous spy Property distinguish, such as to the resistances of Herbicidal combinations or to plant disease or plant disease pathogen (such as specific insect or Microorganism such as fungi, bacterium or virus) resistance.Other specific characteristics be related to for example in relation to harvest the quantity of material, quality, Depot, composition and specific ingredient.Therefore, the genetically modified plants that content of starch increases or starch quality changes, or harvest material In those of to form genetically modified plants with different fatty acid be known.

Root crop plant can also be genetically modified or by Catastrophic selection acquisition.For example, WO 97/44473 A1 is related to converting and produces cassava plant (protoplast).92/05259 A1 of WO is described to be contained with improved carbohydrate The genetically modified plants of amount, especially cassava plant.

The invention further relates to it is a kind of prevention and treatment root crop plant in undesired plant (such as noxious plant) method, Including method after preferably passing through seedling by the conjugate and composition of the active constituent such as defined in the context of the present invention, or will such as exist Defined in the context of the invention comprising active constituent conjugate composition be applied to plant (such as noxious plant), these The position of plant, vegetable seeds or plant growth region (such as cultural area).

Therefore, on the other hand, the present invention relates to a kind of method, it is used for

The undesired plant growth in root crop plant is prevented and treated,

And/or

The noxious plant in root crop plant is prevented and treated,

And/or

The plant growth in root tuber crop plants is adjusted,

It the described method comprises the following steps: by the conjugate of active constituent as defined hereinbefore or comprising active constituent The composition of conjugate be applied to root crop plant, the position of root crop plant, the seed of root crop plant, root tuber The region of crop plants growth or root crop plant will grow or be intended on the region for making root crop plant growth.

Preferably, in method present invention as described above, root crop plant is selected from sweet potato, cassava and Chinese yam (Chinese yam Plant species in category), it is highly preferred that the root crop plant is cassava.

On the other hand, the present invention relates to a kind of methods present invention as described above, wherein a kind of prevention and treatment, number as described above Kind or whole noxious plants.

On the other hand, the present invention relates to a kind of method present invention as described above, wherein root crop plant is lost Modification is passed, the preferably described root crop plant is genetically modified plants or obtains by mutation/selection.

Preferably, the composition of the conjugate of active constituent as defined herein or the conjugate comprising active constituent exists Postemergence application is used in the method for the present invention.

It has furthermore been found that if the aerial part of root crop plant be at least 40cm, preferably at least 50cm, more preferably extremely Few 60cm can then reach extraordinary to excellent in the damage to root crop plant under agronomically acceptable level (total) control of weeds.

This respect is especially important for so-called work.Between make be on identical field while to plant two or more Productivity, the habit crop different with phenology feature.This also means that planting two or more on identical field Crop plants second of crop after the first crop obtains and is significantly in progress or is basically completed its development.It has been noted that It arriving, the total revenue for making the acquisition of per unit area soil is higher, this brings bigger financial income for peasant, referring to Journal of Agricultural Science volume 2014,6, the 8th phase, 35-40.In general, root crop plant such as wood Potato and corn intercrop, also make between beans such as chick-pea or hyacinth bean sometimes.

It is therefore preferable that the method for the present invention is carried out in this way, when the ruler of the aerial part of root crop plant, preferably cassava crop It is very little when being at least 40cm, preferably at least 50cm, more preferably at least 60cm, use the conjugate of active constituent as defined herein Or the composition of the conjugate comprising active constituent.

It is further discovered that in the damage to root crop plant under agronomically acceptable level, it can in the method for the present invention Realize excellent (always) control of weeds, wherein

In first step of applying (i), the conjugate of herbicide before seedling stage or herbicide before seedling stage is applied to root crop Plant, the position of root crop plant, the seed of root crop plant, the region of root crop plant growth or root crop are planted Object will grow or be intended on the region for making root crop plant growth, and

In second step of applying (ii), the conjugate or packet of the active constituent as defined in the context of the invention are applied The composition of conjugate containing active constituent.

In the methods of the invention, step (ii) 20 days or carries out later preferably after step (i) has carried out.It is highly preferred that Step (ii) is 30 to 105 days, even more preferably 40 to 100 days, particularly preferred 50 to 95 days and non-after step (i) has carried out It carries out within often particularly preferred 60 to 90 days.

By this method, the conjugate of application herbicide before seedling stage or herbicide before seedling stage may make root tuber in first step (i) Crop plants, preferably cassava plant are developed in the case where not having noxious plant substantially and growth.Later, in herbicide before seedling stage or The conjugate of herbicide before seedling stage no longer active or no longer valid time point, (some) noxious plants occur again, then exist In second step of applying (ii), applies the conjugate of the active constituent as defined in the context of the invention or include active constituent Conjugate composition.

In this stage, the size of the aerial part of root crop plant, preferably cassava plant is at least 40cm, preferably at least 50cm, more preferably at least 60cm, and there is evil plant is relatively small again.In general, second of the method for the present invention is applied It is carried out with step (ii) when there is evil plants in 4-6 leaf growth period again.

In addition, when carrying out second step of applying (ii), it is preferable to use spray cap (spray shield) is with further The crop that any undesired damage and/or undesired root crop is reduced or minimized reduces.

It (is applying the conjugate of the active constituent as defined in the context of the invention in step (i) or is including activity Before the composition of the conjugate of ingredient) the preferred herbicide before seedling stage of application or the conjugate of herbicide before seedling stage be preferably selected from: Aclonifen (aclonifen), atrazine, butachlor, diflufenican (diflufenican), butyl fluazifop, fluorine thiophene Careless amine (flufenacet), flurtamone (flurtamone), indenes piperazine benfluralin, isoxaflutole, isopropyl methoxalamine, smart isopropyl first Careless amine, metribuzin (metribuzin), Oxyfluorfen, Pendimethalin, prometryn, propaquizafop, sethoxydim (sethoxydim) and two or three of mixture in these herbicides.

It is highly preferred that the conjugate of the herbicide before seedling stage or herbicide before seedling stage applied in step (i) is selected from: aclonifen, Two or three in diflufenican, flufenacet, flurtamone, isoxaflutole, metribuzin and these herbicides mixed Close object.

In view of above-mentioned preferred embodiment, the preferred method of the present invention is used for

The undesired plant growth in root crop plant, preferably cassava plant is prevented and treated,

And/or

The noxious plant in root crop plant, preferably cassava plant is prevented and treated,

And/or

The plant growth in root tuber crop plants, preferably cassava plant is adjusted,

In first step of applying (i), the conjugate of herbicide before seedling stage or herbicide before seedling stage is applied to root crop Plant, the position of root crop plant, the seed of root crop plant, the region of root crop plant growth or root crop are planted Object will grow or be intended on the region for making root crop plant growth,

And

In second step of applying (ii), by the combination of the conjugate of active constituent or the conjugate comprising active constituent Object is applied thereon, and wherein the conjugate of active constituent is comprising following substance or by following material composition

Or

(i) foramsulfuron and/or its salt, (ii) iodine metsulfuron-methyl and/or its salt, (iii) thiophene ketone sulphur is grand, and/or its salt (iv) cyclopropyl-sulfonylamide,

Wherein step (ii) carries out in a case where

30 days or carried out later after step (i) has carried out, it is preferable that step (ii) after step (i) has carried out 40 to It carries out within 100 days,

And/or

When the size of root crop plant, the aerial part of preferably cassava plant be at least 40cm, preferably at least 50cm, When more preferably at least 60cm.

In view of above-mentioned further preferred embodiment, the preferred method of the present invention is used for

And/or

In first step of applying (i), the conjugate of herbicide before seedling stage or herbicide before seedling stage is applied to root crop Plant, the position of root crop plant, the seed of root crop plant, the region of root crop plant growth or root crop are planted Object will grow or be intended on the region for making root crop plant growth, wherein the knot of the herbicide before seedling stage or herbicide before seedling stage It closes object and is selected from aclonifen, atrazine, butachlor, diflufenican, butyl fluazifop, flufenacet, flurtamone, indenes piperazine fluorine Careless amine, isoxaflutole, isopropyl methoxalamine, S-metolachlor, metribuzin, Oxyfluorfen, Pendimethalin, prometryn, Two or three of mixture in propaquizafop, sethoxydim and these herbicides, be preferably selected from aclonifen, diflufenican, Two or three of mixture in flufenacet, flurtamone, isoxaflutole, metribuzin and these herbicides,

And

Or

(i) foramsulfuron and/or its salt, (ii) iodine metsulfuron-methyl and/or its salt, (iii) thiophene ketone sulphur is grand and/or its salt, (iv) cyclopropyl-sulfonylamide,

Wherein step (ii) carries out in a case where

40 days or carried out later after step (i) has carried out, it is preferable that step (ii) after step (i) has carried out 50 to It carries out within 95 days,

And/or

When the size of root crop plant, the aerial part of preferably cassava plant is at least 50cm, preferably at least 60cm When.

It was found that the method for the present invention especially in preferred or further preferred embodiment (is wherein walked in first application Suddenly after (i), carry out second step of applying (ii) as described above) it is particularly advantageous in the case where cassava and corn intercrop and Effectively.

In the latter case, the maize grain yield that discovery usually obtains is higher, grows to cassava plant not significant Negative effect, the plant growth, that is, plant height, plant vigor (vigorous growth) and population density (quantity of cassava plant/ ha)。

Meanwhile it realizing to the extraordinary to excellent prevention and treatment of noxious plant, usually about to dicotyledonous (broad-leaved) weeds 80-96%, to monocotyledon weed (dogstail) about 85-100%, the noxious plant includes the noxious plant such as match for being difficult to prevent and treat Head, painted euphorbia, cogongrass and Rottboellia exaltata L. F (Rottboellia cochinchinensis).

As described above, the conjugate of the active constituent as defined in the context of the invention can be used not only as mix preparation (such as Fruit is suitable, together with other agrochemically active compounds, additive and/or conventional formulation auxiliaries), then as with water Dilution is applied in a usual manner, can also be by the way that the separately formulated component of separately formulated component or part to be diluted with water together And it is used as so-called tank mix.

According to main biological parameter and/or chemico-physical parameter, can prepare in various ways such as in the context of the invention Defined in active constituent conjugate and the combination of the conjugate comprising active constituent as defined in the context of the present invention Object.It is the example of usual feasible preparation below: wettable powder (WP), water-soluble concentrating agents, missible oil (EC), aqueous solution agent (SL), emulsion (EW) such as oil in water emulsion and water-in-oil emulsion, sprayable solution agent or sprayable emulsion, suspension concentrating agents (SC), oil dispersant (OD), oil base or aqueous dispersion agent, suspended emulsion, pulvis (DP), seed dressing material, for soil application or Granule or water dispersible granules (WG), ULV preparation, microcapsules or cerate for broadcasting sowing.

Each preparation type is essentially known, and is recorded in such as following documents:

Winnacker-K ü chler, " Chemische Technologie ", volume 7, C.Hauser Verlag Munich, the 4th edition, 1986；van Valkenburg,"Pesticide Formulations",Marcel Dekker N.Y., 1973；K.Martens, " Spray Drying Handbook ", the 3rd edition .1979, G.Goodwin Ltd.London.

Required formulation auxiliary agents (such as inert material, surfactant, solvent and other additives) be equally it is known, And it is recorded in such as following documents: Watkins, " Handbook of Insecticide Dust Diluents and Carriers ", second edition, Darland Books, Caldwell N.J.；H.v.Olphen,"Introduction to Clay Colloid Chemistry"；Second edition, J.Wiley&Sons, N.Y.Marsden, " Solvents Guide ", second edition, Interscience,N.Y.1950；McCutcheon's,"Detergents and Emulsifiers Annual",MC Publ.Corp.,Ridgewood N.J.；Sisley and Wood,"Encyclopedia ofSurface Active Agents",Chem.Publ.Co.Inc.,N.Y.1964；""[Surface-active ethylene oxide adducts],Wiss.Verlagsgesellschaft,Stuttgart 1976,Winnacker-Küchler,"Chemische Technologie ", volume 7, C.Hauser Verlag Munich, the 4th edition, 1986.

Based on these preparations, can also prepare with other agrochemically active substances, such as be not belonging to such as the context of the invention Defined in component (i), the other active components of (ii), optionally (iii) and (iv), such as other herbicides, other safety Agent, fungicide, insecticide, fertilizer and/or other growth regulators conjugate, such as with pre-composition or the shape of tank mix Formula.

Wettable powder (sprayable pulvis) is the product that can be dispersed in water, in addition to reactive compound it It outside, also include ion or nonionic surfactant (wetting agent, dispersing agent), such as polyethoxylated alkylphenol, polyethoxy Change fatty alcohol or polyethoxylated fatty amines, alkylsulfonate or alkylbenzene sulfonate, sodium lignosulfonate, 2,2 '-dinaphthyl first 6,6 '-sodium disulfonate of alkane-, nekal or oleoyl methyl sodium taurocholate and diluent or inert material.

Missible oil is prepared by the following method: reactive compound is dissolved in organic solvent (such as butanol, cyclohexanone, dimethyl Formamide, dimethylbenzene or higher boiling aromatic compounds or hydrocarbon) in, one or more ions or nonionic surfactant is added (emulsifier).The example of workable emulsifier are as follows: alkyl aryl sulphonic acid calcium salt, such as calcium dodecyl benzene sulfonate or it is non-from Sub- emulsifier, such as fatty acid polyethylene glycol ester, alkylaryl polyglycol ether, fatty alcohol polyglycol ether, propylene oxide/ring Oxidative ethane condensation product, alkyl, polyether, sorbitan fatty ester, polyoxyethylene sorbitan aliphatic ester or polyoxy Ethylene sorbitan esters.

Pulvis is by by reactive compound and finely divided solid matter (such as talcum, natural clay such as kaolin, swelling Soil and pyrophillite or diatomite) grinding acquisition together.

Suspension concentrating agents (SC) can be water base or oil base.It can by commercially available ball mill, and if appropriate The other surfactants (such as above for surfactant mentioned by other types preparation) of addition pass through wet The preparation of formula polishing.

Water-containing organic solvent can be used and for example above for other in emulsion, such as oil-in-water emulsion (EW) Other surfaces activating agent (if appropriate) mentioned by formulation types, by such as blender, colloidal mill and/or static mixing Device preparation.

Granule can be prepared or by the way that reactive compound to be sprayed on absorbability particle shape inert substance by adhesive (such as polyvinyl alcohol, Sodium Polyacrylate or mineral oil) by reactive compound concentrate be applied to carrier (such as sand, kaolinite or Particulate inert material) surface on prepare.It can also be conventionally used for preparing the methods of fertiliser granulates for suitable active ingredient Object-is if necessary to mix-granulating with fertilizer.Water-dispersible granules are usually by conventional method such as spray-drying process, stream Change bed comminution granulation, disk granulation method, mixed with high-speed mixer and squeeze out and prepare in the case where no solid inert material.It is right In disc type particle, fluid bed granulate, the preparation for squeezing out particle and spraying granule, see, for example, in " Spray Drying Handbook ", the third edition, 1979, G.GoodwinLtd., London；J.E.Browning,"Agglomeration", Chemical and Engineering page 1967,147 and hereinafter；"Perry's Chemical Engineer' Method in sHandbook " the 5th edition, McGraw Hill, New York 1973, the 8-57 pages.

Other details in relation to crop protection products preparation, see, for example, G.C.Klingman, " Weed Control as A Science ", John Wiley and Sons, Inc., New York, 1961,81-96 pages and J.D.Freyer, S.A.Evans, " Weed Control Handbook ", the 5th edition Blackwell Scientific Publications, Oxford, 1968, the 101-103 pages.

The agrochemical formulations generally comprise the reactive compound of 1 to 95 weight %, are normal below according to preparation type See concentration:

In wettable powder, activity compound concentration is for example, about 10 to 95 weight %, complements to the remaining of 100 weight % Amount is made of conventional formulation ingredient.In the case where missible oil, the concentration of reactive compound can add up to such as 5 to 80 weight %. In most cases, the preparation of powder form includes the reactive compound of 5 to 20 weight %, and sprayable solution agent includes about The reactive compound of 0.2 to 25 weight %.In the case where granule such as dispersible granule, the content part of reactive compound It is to exist with liquid or in solid form, and depend in part on the granulation aid and filling used depending on reactive compound Agent.In the case where water dispersible granules, the content is typically amount to 10 to 90 weight %.

In addition, if suitable, above-mentioned active agent preparations may include conventional adhesive, wetting agent, dispersing agent, emulsification Agent, preservative, antifreeze, solvent, filler, colorant, carrier, defoaming agent, evaporation suppressor, pH adjusting agent or viscosity-adjusting agent Agent.

The herbicide effect of the conjugate of inventive compound can be for example, by surfactant, preferably by selected from fat The wetting agent of alcohol polyglycol ether improves.Preferred fatty alcohol polyglycol ether is former containing 10-18 carbon in fatty alcohol group Son contains 2-20 ethylene oxide unit in polyethylene glycol ether moiety.Fatty alcohol polyglycol ether can be non-ionic or Ionic, such as in the form of fatty alcohol polyglycol ether sulfate, such as can be with alkali metal salt (such as sodium salt or potassium Salt) or ammonium salt form use, can be used in the form of alkali salt such as magnesium salts, such as C₁₂/C₁₄Fatty alcohol two is sweet Ether sulfate (LRO, Clariant)；See, for example, EP-A-0476555, EP-A-0048436, EP-A- 0336151 or US-A-4,400,196 and Proc.EWRS Symp. " Factors Affecting Herbicidal Activity and Selectivity",227-232(1988).Nonionic fatty alcohols polyglycol ether is, for example, to contain 2-20 A, preferably 3-15 ethylene oxide unit (C₁₀-C₁₈)-fatty alcohol polyglycol ether, preferably (C₁₀-C₁₄)-poly alkyl alcohol second two Alcohol ether (such as different tridecanol polyglycol ether), such as fromSeries, such asX-030、X-060、X-080 orX-150 (is all from Clariant GmbH).

The invention also includes the active constituent (i) as defined in above, (ii), optionally (iii) and (iv) and above-mentioned choosings From the conjugate of the wetting agent of fatty alcohol polyglycol ether, wherein the fatty alcohol polyglycol ether is preferably in fatty alcohol group Containing 10-18 carbon atom, contain 2-20 ethylene oxide unit in polyethylene glycol ether moiety, and its can with nonionic or There is (such as fatty alcohol polyglycol ether sulfate) in ionic species.It is preferred that C₁₂/C₁₄Fatty alcohol diethylene glycol ethers sodium sulphate (LRO, Clariant)；With the different tridecanol polyglycol ether with 3-15 ethylene oxide unit, such as come FromX series, such asX-030、X-060、X-080 orX-150 (is all from Clariant GmbH).It it is known that fatty alcohol polyglycol ether such as nonionic or ion fat Alcohol polyglycol ether (such as fatty alcohol polyglycol ether sulfate) is also suitable as many other herbicides, especially selected from miaow The bleeding agent and active reinforcing agent of the herbicide of oxazoline ketone (see, for example, EP-A-0502014).

Furthermore it is known that fatty alcohol polyglycol ether such as nonionic or ion fatty alcohol polyglycol ether (such as poly alkyl alcohol Glycol ether sulfate) also be suitable as many other herbicides, especially selected from imidazolone herbicide bleeding agent and Synergist (see, for example, EP-A-0502014).

Vegetable oil can be used also to enhance the herbicidal effect of the conjugate of inventive compound.Term vegetable oil should be understood that To mean the oil selected from oilseed plant species, such as soybean oil, rapeseed oil, corn oil, sunflower oil, cotton seed oil, linseed Oil, coconut oil, palm oil, safflower oil or castor oil, especially rapeseed oil and their transesterification product, such as Arrcostab, example Such as rapeseed methylester or rapeseed oil ethyl ester.

Vegetable oil is preferably C₁₀-C₂₂The ester of fatty acid, preferably C₁₂-C₂₀The ester of fatty acid.

C₁₀-C₂₂Aliphatic ester is for example unsaturated or saturation C₁₀-C₂₂The ester of fatty acid especially has even number carbon The ester of those of atom fatty acid, such as the ester of erucic acid, lauric acid, palmitinic acid, especially C₁₈Fatty acid for example stearic acid, oleic acid, Linoleic acid or linolenic ester.

Preferred C₁₀-C₂₂Fatty acid C₁-C₂₀Arrcostab is methyl esters, ethyl ester, propyl ester, butyl ester, 2- ethylhexyl and 12 Arrcostab.Preferably ethylene glycol-C₁₀-C₂₂Aliphatic ester and glycerine-C₁₀-C₂₂Aliphatic ester is C₁₀-C₂₂Fatty acid second two Alcohol ester and C₁₀-C₂₂The uniform object or mixture of fatty acid glycerine ester, the C₁₀-C₂₂Fatty acid especially has even number Those of carbon atom fatty acid, such as erucic acid, lauric acid, palmitinic acid, especially C₁₈Fatty acid, such as stearic acid, oleic acid, Asia Oleic acid or linolenic acid.

Vegetable oil can for example commercially available oil-including formulation additive, particularly based on those of rapeseed oil oil-including formulation The form of additive is present in the present composition, such as(Victorian Chemical Company, Australia Big Leah, hereinafter referred to as Hasten, main component: rapeseed oil ethyl ester),B (Novance, France, hereinafter Referred to as ActirobB, main component: rapeseed methylester), Rako-(Bayer AG, Germany, hereinafter referred to Rako- Binol, main component: rapeseed oil),(Stefes, Germany, hereinafter referred to Renol, plant oil component: rapeseed oil Methyl esters) or Stefes(Stefes, Germany, hereinafter referred to Mero, main component: rapeseed methylester).

In another embodiment, the present invention cover the conjugate of the active constituent as defined in the context of the invention with The conjugate of above-mentioned vegetable oil.Therefore, in another embodiment, the present invention covers comprising as defined in the context of the invention Active constituent conjugate and include above-mentioned vegetable oil composition purposes, the vegetable oil such as rapeseed oil, preferably with Commercially available oil-including formulation additive, particularly the form based on those of rapeseed oil oil-including formulation additive, such as(Victorian Chemical Company, Australia, hereinafter referred to as Hasten, main component: vegetable seed Oily ethyl ester),B (Novance, France, hereinafter referred to ActirobB, main component: rapeseed methylester), Rako-(Bayer AG, Germany, hereinafter referred to Rako-Binol, main component: rapeseed oil),(Stefes, moral State, hereinafter referred to Renol, plant oil component: rapeseed methylester) or Stefes(Stefes, Germany, hereinafter referred to as For Mero, main component: rapeseed methylester)

In order to use, optionally dilute in a usual manner in the form of commercially available existing for preparation, such as wettable Property pulvis, missible oil, dispersing agent and water dispersible granules are diluted with water.Pulvis, soil particle agent are broadcasted sowing with granule and sprayable molten The preparation of liquid formulation is further diluted using preceding other inert substances that do not have to usually.

Reactive compound can be applied to plant, the position of plant, the seed of plant or cultural area (soil in field), It is preferred that being applied to green plant and the position of plant, and if appropriate, also it is applied to the soil in field.

What is used in the context of the present invention includes that the composition of the conjugate of active constituent has the advantages that be easy to apply, And advantageously, the amount of each component is provided with correct ratio each other.In addition, the adjuvant in preparation can each other most It matches goodly.

Embodiment

1. the product used

Test following commercially available product (can obtain from Bayer CropScience):

Product P1 contains double isoxazolyl benzenesulfonamides of the foramsulfuron of 300g/kg, the iodine metsulfuron-methyl sodium of 10g/kg and 300g/kg Acid, and be a kind of water dispersible granules (WG) preparation.

Product P2 contain the foramsulfuron sodium of 31.5g/L, the iodine metsulfuron-methyl sodium of 1g/L, 10g/L thiophene ketone sulphur it is grand and The cyclopropyl-sulfonylamide of 15g/L, and be a kind of oil dispersant (OD) preparation.

2. biologic test

In the experimental plot (Research Farm) of Nigeria, cassava plant is tested.

Table 1 shows the respective control of weeds grading of the different product tested after emergence.In each case, total weed Prevention and treatment will all be taken into account the prevention and treatment of monocotyledon weed present in plot (dogstail) and dicotyledonous (broad-leaved) weeds (BLW).

Using spray cap by the product be applied to cassava hat under noxious plant.

Especially have rated the prevention and treatment to following weeds: the climing beans of Ageratum conyzoides, hair, Centrosema, poolroot, match end, three Room are yellow Fiber crops, scorpion tail beggarweed, painted euphorbia, cogongrass, big broomcorn millet, phyllanthus amatusniruri, Rottboellia exaltata L. F (Rottboellia Cochinchinensis), sweet basil spermacoce latifolia and Spigelia anthemia.

Table 1: it is graded after emergence with the control of weeds in the plot of respective product treatment

Product	The amount of the product of application	Control of weeds, in terms of %	BLW prevention and treatment, in terms of %
				P1	0.15kg/ha	96%	88%
P2	1L/ha	99%	91%

Table 2 is shown compared with uprooting weeding, after with respective product treatment 14 weeks, the plant height of cassava plant.

Table 2: after with respective product treatment 14 weeks, the plant height of cassava plant

Product or processing	The amount of the product of application	The height of cassava plant
			P1	0.15kg/ha	170cm
P2	1L/ha	165cm
			It uproots weeding (reference)	-	175cm

Table 3 shows that after harvesting, relative to the cassava crop plants (as reference) of hoe weeding, product P2 is to cassava The plant growth regulation of crop plants.Plant growth regulation is measured with respective fresh root cassava production.In every kind of feelings Under condition, using hundred compared with the fresh root cassava production (being defined as 100%) of the cassava crop plants of the hoe weeding as reference Divide than indicating.

Table 3: product P2 is expressed as fresh root yield to the plant growth regulation of root crop plant

Claims

1. the purposes of the composition of the conjugate of active constituent or the conjugate comprising active constituent, the purposes are

For preventing and treating the noxious plant in root crop plant,

And/or

The plant growth regulator being used as in root crop plant,

Wherein, the conjugate of active constituent include (i) foramsulfuron and/or its salt, (ii) iodine metsulfuron-methyl and/or its Salt and (iv) one or more safeners.

2. purposes according to claim 1, wherein the conjugate of active constituent is comprising following substance or by following object Matter composition:

Or

(i) foramsulfuron and/or its salt, (ii) iodine metsulfuron-methyl and/or its salt, (iii) thiophene ketone sulphur is grand and/or its salt and (iv) cyclopropyl-sulfonylamide.

3. purposes according to claim 1 or 2, wherein using a kind of also comprising one or more selected from formulation auxiliary agents, work The composition of the other components of common additive and other agrochemically active compounds in object protection.

4. purposes according to any one of claim 1 to 3, wherein (i) total amount of foramsulfuron and its salt and (ii) The weight ratio of the total amount of iodine metsulfuron-methyl and its salt is in the range of 100:1 to 5:1, preferably in the range of 50:1 to 10:1.

5. purposes according to any one of claim 1 to 4, wherein the root crop plant be selected from sweet potato, cassava and Chinese yam (plant species in Dioscorea).

6. purposes according to any one of claim 1 to 5, wherein the root crop plant is cassava.

7. purposes according to any one of claim 1 to 6, one of, several or whole noxious plants are selected from following Weed species: the climing Macroptilium of ageratum, hair, Alternanthera, Borreria, Commeline communis category, perfumed hair cream or oil Cymbidium, Mimosa, plumage awns Chrysanthemum, Brachiaria, mesona category, knotgrass, golden waist arrow category, Panicum, Cyperus, cogon, Cynodon, Pennisetum, brick Sub- seedling category, Euphorbia, Fameflower, Cyclosorus, molasses grass category, chrysanthemum harvest spp, Portulaca, Rottboellia exaltata L. F category, sorghum, Mexician scammony Category, talon eria, Spigelia, punarnava category, Aspilia belong to, Aneilima belongs to, luxuriant thatch category, Andropogon, Paspalum, red The careless category of hair, herba eleusines indicae category, setaria, thorn capsule fiber crops category, false horsewhip category, beggar-ticks, Gomphrena, Acacia, thorn bud fruit Category, bee saage category, Cenchrus, smallpox category of ancient India, Vernonia, spiderflower category, Crotalaria, water joy centipede category, Corchorus, sweet potato Category, Mitraearpus, prostrate wedelia herb category, Centrosema category, tassel flower category, crotons category, Leafflower, Passiflora, carpetweed category, white flower HERBA HEDYOTIS DIFFUSAE category, Schwenckia category, Acalypha, Coleus, feather cockscomb category, anil, Heterotis category, Herba Cancriniae lasiocarpae category, silver Albizzia, punarnava category, Borreria, ball spartina category and genus fimbristylis.

8. purposes according to any one of claim 1 to 7, one of, several or whole noxious plants are selected from: victory is red The climing beans of Ji, hair, alternanthera, Boreiria ocymoides, upright Commeline communis, poolroot, Brazilian sensitive plant, match end, plumage awns Chrysanthemum, Brachiaria delfexa, African mesona, digitaria ciliaris, herba digitariae, golden waist arrow, big broomcorn millet, the rhizome of nutgrass flatsedge, cyperue esculentus, cogongrass, dog Root of the tooth, more fringe Chinese pennisetums, napier grass, purple Chinese pennisetum, Mariscus alternifolius, painted euphorbia, hairy euphorbia, Talinum crassifolium, Fern, molasses grass, bur, white back bur, Drilgrass, purslane, Rottboellia exaltata L. F (Rottboellia exaltata), Rottboellia exaltata L. F (Rottboellia cochinchinensis), Sorghum halepense, trilobated leaf potato, Egyptian grass, Brachiara lata, Spigelia Anthemia, upright punarnava, Aspilia africana, Aneilima beniniense, Hyparrhenia Involucrate, Guyana bluestem grass, Paspalum conjugatum, Herba Paspali orbicularis, nakedflower murdannia herb, herba eleusines indicae, Setaria barbata, Setaria megaphylla, Triumfetta cordifolia, blue butterfly ape tail tree, scorpion tail beggarweed, Herba Gomphrenae celosioidis, Tephrosia bracteolata, bristle thorn bud chrysanthemum, bee saage, gakhuri grass, Rose Mallow Root, Mongolian ringdove chrysanthemum, sweet vernal grass, south Under square Semen Cuscutae, corchorus olitorius, lid dehiscent fruit, Melanthera scandens, Centrosema, suede tassel chrysanthemum, bristle crotons, bitter taste leaf Text is applied in pearl, three Room jutes, passion plant, Ipomoea involucrate, carpetweed, Herba Hedyotidis Corymbosae, cilium iron amaranth, Guyana Gram grass, Solenostemon monostachyus, silver-colored spinach, Mao Mulan, tendril tomonea, short tongue spend golden button, white popinac, Punarnava, sweet basil spermacoce latifolia, palpus awns bamboo grass, beach louse grass, cyperus iria and setting kyllinga brevifolia.

9. a kind of method, is used for

The undesired plant growth in root crop plant is prevented and treated,

And/or

The noxious plant in root crop plant is prevented and treated,

And/or

The plant growth in root tuber crop plants is adjusted,

It the described method comprises the following steps: by the conjugate such as the active constituent defined in any one of claims 1 to 4 Or the composition of the conjugate comprising active constituent is applied to root crop plant, the position of root crop plant, root crop The seed of plant, the region of root crop plant growth or root crop plant will grow or be intended to keep root crop plant raw Long region.

10. according to the method described in claim 9, wherein the root crop plant is selected from sweet potato, cassava and Chinese yam (Dioscorea In plant species).

11. method according to claim 9 or 10, wherein prevention and treatment is such as one kind defined in claim 7 or 8, number Kind or whole noxious plants.

12. the method according to any one of claim 9 to 11, wherein as determined in any one of claims 1 to 4 The conjugate of the active constituent of justice or the composition of the conjugate comprising active constituent are for going out postemergence application.

13. the method according to any one of claim 9 to 12, wherein when the aerial part of root crop plant is at least When 40cm, preferably at least 50cm, even more desirably at least 60cm, using as defined in any one of claims 1 to 4 The composition of the conjugate of active constituent or the conjugate comprising active constituent.

14. the method according to any one of claim 9 to 13, wherein

In first step of applying (i), by the conjugate of herbicide before seedling stage or herbicide before seedling stage be applied to root crop plant, The position of root crop plant, the seed of root crop plant, the region of root crop plant growth or root crop plant will It grows or is intended on the region for making root crop plant growth, and

In second step of applying (ii), the knot such as the active constituent defined in any one of claims 1 to 4 is applied Close the composition of object or the conjugate comprising active constituent.

15. according to the method for claim 14, wherein second step of applying (ii) is 20 days after step (i) has carried out Or carry out later, it is preferable that step (ii) is 30 to 105 days after step (i) has carried out, carries out within particularly preferred 40 to 95 days.