SU525444A1 - Herbicidal composition - Google Patents

Description

This invention relates to chemical agents for controlling undesirable vegetation in crops of cultivated crops.

Terbicidal formulations based on chlorprofam (CiPC) and diuran are known.

The herbicides making up the composition are known preparations of chlorproform (C-iPC) and minuron, which are active from the beginning: the scrap of the top are respectively iapril-N-m-chlorocarbamate and N-3,4-dichloro {| phenyl - / N -methyl-N-methoxyurea. A composition based on chlorprofam (Ci PCJ and linuron, influencing the yield of i carrots was studied.

In order to widen the spectrum of action,

enhancement of girbitsidnoe activity and | of the selectivity of action offers a herbicidal composition, including a mixture of L-3.4 g

j-dichlorophenyl-N-methi-4-N-methoxyimurea | Na and isopril-N-M 1-chlorocarbomate, the total ratios being 2: 1 to 1: 4, respectively.

Example 1. One-place weed plants serve as test-rats: chicken millet, spreading buckwheat and mar-white. The seeds are seeded into the soil, and the duster is treated with compound No. 1 (N-3,4-dichlorofvnil-N-methyl-M | -methoxyurea) and compound No. 2 j (isopropyl-N-m-chloro-phenylcarbamate), as well as their mixture. Consider the herbicidal activity of the compounds 18 days after treatment, the percentage nof. pressures are evaluated by weight of green plants in control vessels not treated with herbicides. The results of the experiment are given in table. one.

Table 1

Example 2. The effect of a mixture of drugs on weeds in crops of carrots and onions .;

Connections nos. 1 and nos. 2 and their mixtures are treated with cultures after sowing, until b-j laziness of shoots. Weed suppression percentage

they are taken into account every month in terms of the number in nenii with the control cases (without weeding) and the crop is compared with the harvest on the control areas. The results of the experiment are given in table. 2. I

table 2

Claims (1)

Invention Formula Herbicidal composition based on N - 3,4-dichlorophenip-N -metip-jN-methoxy-wetted1, excepting by the fact that in order to enhance the herbicidal activity and selectivity of action, it contains isopropyl-N -J m-chlorophenylcarbamate, and the weight ratios of the mixture components are respectively from 2: 1 to 1: 4.