SU1375110A3 - Herbicide agent - Google Patents

Abstract

A synergistic herbicidal composition comprises as active ingredient (i) ethalfluralin and (ii) terbuthilazine, terbutryn or terbumeton at a ratio of 19:1-1:4 parts by weight. The synergistic composition can be advantageously used for pre- emergent and post-emergent weed control in field plant cultivation, particularly in autumn wheat. The compositions accelerate the destruction of weeds and are suitable for pre-emergent application and thereby create highly favourable conditions for the growth of autumn wheat and this leads to an increase of crop yield.

Description

SAE SD

 CM

- The invention relates to chemical means for controlling weeds and undesirable vegetation.

The purpose of the invention is to increase the germicidal activity of the agent.

The following are the active substances of the predaped agent, efo formulations and examples illustrating its effectiveness.

Ta compound - 4-chloro-2-ethylamino-6-t: ret-1-amino-1,3,5-triazine; Compound I b A-methylthio-2-ethylamino-6-tert-butyl-1,3,5-triazine; Compound I with 4-methyloxy-2-etch1amino-6-tert-butyl-1,3,5-triazine; Compound II is N-ethyl-N- (2-methylally) -4-trifluoromethyl-2,6-dinitroaniline.

Preparative forms of a herbicidal agent (Table 1).

Powder mixture contains, wt%:

Compound II 32.5

Compound I b

Ligninsulfonate

on three ,

Lauryl alcohol sulfate3

Silicic acid anhydride 10

Silica 32

Emulsifying concentrate Stabl. 2).

Example 1. The seeds of the experimental plants were sown in special vessels, sprayed them with soil and treated it with a herbicidal agent, containing a mixture of active substances 1a + II in the form of a 20% solution, and herbicidal agents containing separately active substances. 1a + II in the form of their solutions. Evaluation of germicidal activity was performed 14 days after treatment. The synergistic effect was calculated by the well-known Kolby method.

The results of the experiments are presented in table. 3 and 4.

EXAMPLE 2. The conditions of example 1 were performed using the active substances lb and ii in the form of a 50% powder mixture.

The results of the experiments are presented in table. 5 and 6.

Example Z. Under the conditions of Example 1, an experiment was carried out using the active substances 1c and II in the form of a 40% emulsiuridine concentrate.

The results of the experiments are presented in table. 7 and 8.

Example 4. Under the conditions of Example 1, a comparative experiment was carried out on a herbicidal agent based on a mixture of Ib II in the form of a 50% powdered preparation with a known herbicidal agent based on a mixture of Ib and N- (3-methyl-4-chlorophenyl) -1, K -dimethylurea (III).

The results of the experiments are presented in table. 9.

Claims (1)

Invention Formula Herbicidal agent based on a two-component synergistic mixture containing a derivative of symtriazine of general formula I X N-ir- N C H-k4Ll H-tHg-Tp T. AND where X is chlorine, methoxy, methylthio, carriers and surfactants, characterized in that, in order to increase the herbicidal activity, it contains, as a second component, a dinitroaniline derivative of the formula II .Hs  SNO-SNO  , with a mass ratio of 1:11 equal to 0.053-4: 1, the substance selected from the group: N-methyl-o-pyrrolidone, ethyl alcohol, cyclohexanone, butyl acetate, isobutanol, xylene, silicic anhydride and silica or mixtures thereof, as a surfactant a substance selected from the group of: polyoxyethylene sorbitan monolaurate, sodium ligninsulfonate, lauryl alcohol sulfate, nonylphenol polyglycol ether and calcium dodecylbenzenesulfonate, with the herbicidal agent containing the following content of the ingredient, the herbalicide agent and calcium dodecylbenzenesulfonate, with the herbicide agent, with the following content of the herbicide agent, with the addition of the unit, you will not have the same body, you will be the same as the unit, you will not have the same procedure, you will also have the same procedure as the one, and you will have the same template, you will not have the same body, we will not use the same template, we will use the same template, we will use the herbal agent, and will not use the same substance, we will not use the same procedure, we will use the same template, and we will use the same template, we can use the herbalicide agent and calcium dodecylbenzenesulfonate, if you choose Active substance (mixtures I and II) Carrier Surfactant 20-50 42-76 4-10 Compound II Connection 1 and sixteen H-Methyl-about-pyrromedone 21.6 21.6 22.2 22.2 22.8 22.8 Ethanol 50.4 50.4 51,851.8 53,253.2 Polyoxyethylene sorbate-tanmonolaurate Nonylphenol polyglycol ether Calcium Dodecylbenzene Sulfonate Table 1 ten 13 sixteen nineteen 13 ten table 2 T a b l i Activity of Compound II, Compound 1a, Mix II + 1a (% defeat) Table 4 Synergistic and antagonistic / - / action (%) achieved by using combinations II + 1a II + 1a 0.4 + 1.6 0.7 + 1.3 cc 3 18.8 2.0 8.0 30.0 10.0 16.8 15.0 16.6 36.0 20.0 1.0 + 1.0 1.3 + 0.7 1.6 + 0.4 1.9 + 0.1 Activity of Compound II, Compound Ib, and Mixture II + Ib (% defeat) Continuation of table 4 19,762,030,0 36,678,075,0 20,635,063,0 1,440,047,0 Table 5 1.3 + 0.7 1.6 + 0.4 1.9 + 0.1 Table Synergistic and antagonistic / - / action (%) achieved using Il + Ib combinations ITABLE 7 Activity of Compound II, Compound 1c and Mix II + 1c (% defeat) Compound II Continuation of table.5 92 68 42 98 90 86 95 95 90 90 98 90 0.115-18 0.420-22 0.7201531 1,0252034 . 1,3403640 1.6564459 1s 1.9665475 0.4 +1.6807571 0.7 + 1.3908074 1.0 + 1.0989088 1.3 + 0.71009593 1.6 + 0.41009090 1.9 + 0.1959074 Synergistic and antagonistic / - / action (%) achieved by using combinations II + 1c II + 1c Continuation of table 7 25 30 32 65 65 61 20 21 33 46 68 70 62 26 Table8 J3 137511014 Table 9 Comparison of the effectiveness of mixtures of Compound II and Compound Ib, as well as of Ib and III (% defeat)