UA56205U - Herbicidal composition for treating cereal crops - Google Patents

Abstract

A herbicidal composition for treating cereal crops as water-soluble granules which comprises amidosulphuron as an additional ingredient of the sulphonylurea group and comprises a wetting agent, a dispersing agent, a desintegrating agent and a filler as auxiliary ingredients.

Description

combat, a broad-spectrum post-emergence herbicide ac- the use of the antidote mefenpyrdiethyl in tivity to combat many broad-leaved rather high concentration, which increases the toxicity of weedy plants. The mechanism of effect of tribenu- load on the environment and roron-methyl consists in the inhibition of the enzyme aceto- but its preparation is more complicated. lactate synthase. The task of this useful model is to

There is a well-known method of combating the unwanted development of a synergistic herbicidal composition, which involves the treatment of plants or is characterized by high efficiency and the soil in which it grows, a derivative of sulfonate preparation. plurea, while as such a derivative is used. The disadvantage of this method is limited crops in the form of water-soluble granules, a wide range of weeds that can be controlled, which includes the active compounds of amidosulfuron, and when using the specified active compound. tribenuronmethyl, as well as auxiliary components

To combat perennial dicotyledons with the following ratio of components, mixtures of herbicides with mass.oo inhibitors: acetolactate synthase (ALS) with auxin-like amidosulfuron 20-30 herbicides (APG) are often used. At the same time, the maximum effectiveness of tribenuron-methyl 40-60 destruction of such weeds, in particular, thistle wetting agent 1-3 pink field (Sigzisht agmepve (I.) Zsor.), dispersing agent 6-9 is achieved under the condition that the plants weed on the mod- disintegrating agent 4-8 ment of treatment completely formed a rosette or filler up to 100. moved to the stem elongation phase. In recent years, in practice, mild winters have often been observed for weed control, which led to insufficient treatment with only one herbicide - in this case, overgrowth and early recovery of spring vegetation of grain crops, in particular, winter pshe- compositions of several active compounds The development of the greenhouse, at the same time as the germination of thistles occurs binations of herbicides, the effect of which is too late in terms of effectiveness and they do not reach the rosette phase, the effect of each of the components of the composition weighs, taken when wheat enters the tube phase, and sometimes separately , is extremely relevant. In progress, even in the flag leaf phase. Therefore, it was unexpectedly found that APGs, the period of application of which is limited to the phase of application of the composition of amidosulfuron and trizoa during tillering in grain spike crops, for benuronmethyl reveals a synergistic effect of thistle control becomes problematic. In connection with the impact on weeds. At the same time, the effectiveness of the more targeted herbicide composition for controlling thistles is higher, it is the use of mixtures of herbicide-inhibitors than the effectiveness of the components used

ALS, for example, sulfonylurea, in particular, su- when used individually. This effect of mixtures, which include tribenuron, which provides effective control of a wide range of weeds, is characterized by a high effectiveness of action on rum weeds while reducing consumption rates. The claimed thistle and can be used in wheat crops, the composition does not need to be added to its composition before the flag leaf phase. an antidote that protects cultivated plants from toxic

The closest to the proposed beneficial effect of active compounds and the characterized model is the preparation "Grodil Maxi", which is produced by the company "Bayer CropScience AG", O.E. January contains a synergistic composition of active compounds. In addition, the specified composition in the form of hydro-amidosulfuron in the amount of 100 g/l and iodul-soluble granules includes auxiliary components, sodium furonmethyl in the amount of 25 g/l, as well as anc- which contribute to the achievement of the desired agrochemical tidot mefenpyrdiethyl in the amount 250 g/l ("List of effects. In particular, the declared herbicidal composition of pesticides and agrochemicals approved for use as auxiliary components contains a dispersing solvent in Ukraine", official publication, 2008, an agent that may be a sulfonated distor.172) . This drug is used as a perming agent, for example, in the form of lignosulfonic oil dispersion and is effective against the acid or sodium salt of naphthalene condensate - annual and perennial dicotyledonous weeds. lfoic acid and formaldehyde. As a wetting agent

The specified three-component herbicidal composition agent can be used dibutyl naphthalene is used to treat corn (standard sodium sulfonate or alkylnaphthalene sulfonate consumption 0.1-0.11 l/ha), wheat and barley (standard sodium. The disintegrating agent can be used - consumption 0.09- 0 1l/ha). The indicated drug is to choose one based on polyvinylpyrrolidone. As a prototype of the declared useful model. However, the substance in the composition of the proposed composition can be a significant drawback of this composition is the weak use of synthetic calcium silicate, which has a particularly harmful effect on one-year-old two-kaolin and others. the bottom weed of the tenacious podmarennik (Saiisht aragipe) The tool is convenient to prepare and use

Gu. In addition, it should be taken into account that the indicated com- The declared preparation form is easily dispersed, the position is used in the form of an oily dispersion in a liquid solvent with the formation of a stable dispersion, which is not always convenient for use in a suspension of active components and retains its field conditions, as it requires the presence of properties for a long time . This provides safe containers for the preparation of workers to increase the effectiveness of agrochemicals. The described three-component composition will, accordingly, reduce damage to crops.

The process of preparing water-soluble granules Example 1. according to the invention involves preliminary mixing. The study of the biological effectiveness of the application of the active ingredients of amidosulfuron and the proposed herbicide composition based on amido-tribenuron-methyl with a carrier representing sosulfuron and tribenuron-methyl was carried out using kaolin or silica gel. , in the form of flowing, homo-field experiments on the fields of the Ukrainian National Powder Research Institute of the Russian Academy of Sciences of the National Academy of Sciences. Pre-mixing is preferred, Glevakh settlement of Vasylkivskyi district of Kyiv region, but is carried out when using liquid, in particular, in the region. At the same time, spring water crops were used. At the same time, the active ingredients and auxiliary wheat of the Khutoryanka variety, clogged with thistle ro- the components are first thoroughly ground, and chewy and tenacious. As a standard, the obtained premix is passed through an extruder with the herbicide "Grodil Maxi", active to obtain a compacted extrudate, which can be collected in the form of water-soluble granules. and iodosulfuron. Water-soluble granules declared-

The following examples are intended for the composition and the reference drug was dissolved in the illustration and explanation of the proposed invention, the drug "Maxium" was added to the solution. To confirm the effectiveness of the claimed surfactant-containing compound (glycol composition of the preparative form, alkyl polyethylene ether tests were carried out) in the amount of 20 ml/l. Additions when using the declared herbicide compound were laid according to the following scheme: positions in the form of water-soluble granules and reference herbicide drug "Grodil Maxi".

I'm Norma

The claimed composition (tribenuron-methyl (400g/kgneamidosulfuron (250g/kg))

The claimed composition (tribenuron-methyl (500g/kgamidosulfuron (250g/kg)) in "Grodil Maxi" (amidosulfuron (100g/l) uniodosulfuron-methyl AN (25g/l) unmefenpyrdiethyl (250g/l)) O l/ha (7 |Control/-:/://///СС777С11111111111111111111111111111111111111111111111111111111111-1-

Treatment with herbicides was carried out on May 18, 2009, when spring wheat was in the tillering phase.

At the time of processing, there was changeable cloud cover, air temperature - 15"C, wind - 4 m/s. The nature of weeds at the time of processing is presented in Table 1.

Table 1

Contamination of spring wheat crops by certain types of weeds at the stage of their development at the time of treatment with herbicides

The records carried out after processing the crops showed (Table 2) that all studied herbicides and Table 2 herbicide compositions effectively destroyed annual dicotyledonous weeds wild radish (Narpapiv Effectiveness (95) destruction of Harpapivipit I.) and non-scented chamomile (Maisagia bur Yaniv 28 days after treatment of hypodog G.). Amidosulfuron, taken separately, destroyed 7,595 stickleback weevils, the reference drug "Grodil Maxi" and thistles ensured the destruction of Radek fashion weevils | Chamomile of the marked weed on 38695, tribenuron-methyl tenacious field| wild | nepachucha suppressed this type of weeds by only 55 and 6795, respectively, at consumption rates of 10 and 15 g/ha. At the same time, the perennial dicotyledonous weed pink thistle was most effectively destroyed when tribenuron-methyl was used at the consumption rate of 85197 73001100 1 15g/ha, less effectively by the drug "Grodil Mak- -8--5--- 3-0 seeds, and amidosulfuron practically did not affect this type of weeds.

When using the proposed herbicidal saliva of the tenacious cattail, which was evidenced by the composition consisting of tribenuron-methyl significantly exceeding the actual value and amidosulfuron, the effective destruction of weeds was achieved in comparison with the destruction of all weeds that littered spring crops calculated by the method Colby expected effect- wheat. At the same time, the effectiveness of the mixture was observed (Table 4). synergistic increase of phytotoxic effect on ro-

Table C

Actual and expected efficiency of destruction (905) of weeds when applying the proposed herbicide composition and Effectiveness of action (c

Variant f action Se)

Expected

The claimed composition (tribenuron-methyl (400g/kg) amidosulfuron (250g/kg 000097. 89

The declared composition (tribenuron-methyl (500g/kgn-amidosulfuron (250g/kg 00099. | w.92

No; 11111116

Thus, a herbicide combination for the control of annual and perennial two-addition for the treatment of grain crops, which contains weeds, is proposed. The proposed combination of ax-sulfonylurea, amidosulfuron, tribenurontiv compounds shows a synergistic effect, sto-methyl and auxiliary components, is effective for effective impact on the indicated weeds.

Computer typesetting by N. Lysenko Signature Circulation 26 approx.

Ministry of Education and Science of Ukraine

State Department of Intellectual Property, str. Urytskogo, 45, Kyiv, MSP, 03680, Ukraine

SE "Ukrainian Institute of Industrial Property", str. Glazunova, 1, Kyiv - 42, 01601