SU424547A1 - RETARDANT MEANS - Google Patents

Description

one

This invention relates to the use of chemicals to combat the lodging of crops of cereals.

Known use as a retardant chlorine chloride (2-chloroethyl) -trimethylammonium chloride.

The purpose of the invention is to increase the chlorophenol chloride retardant activity.

For this purpose, dimethyl sulfoxide is added to chlorocholine chloride. The chlorocholin chloride and dimethyl sulfoxide in the retardant composition are in a weight ratio of 1: 0.2 to 1: 0.1, respectively.

It was established that spraying of crops of rye and wheat with dimethyl sulfoxide at a concentration of 0.1; 0.2; 0.3 and 0.4% at the rate of 200 l / ha (i.e., 0.2; 0.4; 0.6 and 0.8 kg / ha) have no effect on the growth and yield of these plants.

The use of chlorocholin chloride at a dose of 3 kg / ha (wheat) and 4 kg / ha (rye) contributed to the inhibition of the growth of common wheat for an average of two years by 5% (Table 1), winter rye - by 8% compared with the control , spraying of crops with a mixture of chlorocholine chloride in the same dose with dimethyl sulfoxide (0.3%) contributed to the shortening of wheat plants by 12% and rye - by 13%. Moreover, in the variant treated with a mixture of chlorocholine chloride and dimethyl sulfoxide, the shortening of the stem occurs mainly due to the lower internodes (especially in rye), which is important for increasing plant resistance to lodging, since it is known that the resistance of grasses is determined by the lower internodes. In the same variant, the highest production of productive ears was observed (Tables 1 and 2).

The grain yield of the Saratovsk 36 p grain of Saratov 33 after treatment with dimethyl sulfoxide is almost the same as the control, in the variant treated with chlorine chloride, it rises on average by 6-8%

compared with the control, and after processing the mixture - by 15-11% (Tables 3 and 4). The largest increase in the absolute weight of the grain is also noted in this variant. The grain quality, as determined by the yield of dry and raw gluten under the influence of chlorocholin chloride, is reduced and almost does not differ from the control in the variant chlorocholine chloride 4-dimethyl sulfoxide (Tables 3 and 4). Similar results were obtained in experiments on crops

rye (table. 5).

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Yu

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E;

Harvest of grain wheat of Saratovsk 33

Table 4

The harvest of winter rye grain

Adding dimethyl sulfoxide to the chlorocholin chloride solution at a rate of 0.2% (i.e., 0.4 kg / ha), according to the effect on wheat and rye crops, turned out to be the same as at a concentration of 0.3%. A further decrease or increase in the concentration of dimethyl sulfoxide (up to 0.1 or 0.4%) did not have a positive effect on increasing the resistance of bread to lodging or their productivity.

Table 5

Subject invention

A retardant agent containing chlorocholine chloride (2-chloroethyl) -trimethylammonium chloride, characterized in that, in order to enhance its activity, dimethyl sulfoxide is introduced into it in a weight ratio of chlorocholine chloride: dimethyl sulfoxide from 1: 0.2 to 1: 0.1.