RU2471800C1 - Method of producing plant stimulator - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of producing a stimulator which increases germination power and rate of cereal seeds. The disclosed method involves reaction of dimethyl phosphite with 2,2-dichloro-cyclopropylmethanol in molar ratio 1:2, mixing for 4 hours at temperature of 60-65°C, with subsequent vacuum distillation twice and dissolving the obtained bis(2,2-dichlorocyclopropylmethyl)phosphite in distilled water until 0.01% aqueous solution is obtained.

EFFECT: novel method of producing a stimulator which increases germination power and capacity of seeds and accelerates the beginning of ripening of cereal crops.

1 cl, 1 ex

Description

The invention relates to the field of agriculture and is intended to create a method for producing a stimulator that accelerates the energy and speed of germination of seeds of grain crops.

A known method of obtaining (N, N'-tetramethylmethylenediamine oxalic) copper sulfate pentahydrate, which can be used as a stimulator of growth and productivity of plants [1].

A known method of obtaining a growth stimulator in the processing of a humic containing component with alkali [2].

A known method of obtaining a plant growth stimulator from resinous-asphaltene substances of low-sulfur oils and naphthenic type bitumen [3].

There is a method of obtaining a plant growth stimulator by treating peat with an aqueous solution of ammonia and hydrogen peroxide when heated [4].

A known method of obtaining a plant growth stimulator from an extract of purple coneflower [5].

Known methods allow to obtain plant stimulants, but are more difficult to prepare and involve the use of more expensive drugs.

The invention is aimed at creating a method of obtaining a plant stimulant that accelerates the energy and speed of germination of seeds of grain crops.

The technical problem solved by the invention is to expand the range of methods for producing plant stimulants intended for presowing treatment of seeds of grain crops.

The technical result is the creation of a stimulator that increases the energy of germination and germination of seeds, accelerating the onset of ripening of crops, as well as expanding the arsenal of funds for this purpose.

This is achieved by obtaining bis (2,2-dichlorocyclopropylmethyl) phosphite C ₈ H ₁₁ Cl ₄ O ₃ P by reaction of transesterification of dimethylphosphite with 2,2-dichlorocyclopropylmethanol.

In a two-necked flask equipped with a thermometer and a descending cooler, a mixture of dimethylphosphite with 2,2-dichlorocyclopropylmethanol with a molar ratio of 1: 2 was heated for 4 hours at a temperature of 60-65 ° C until the distillation of methanol was stopped. Then, after twofold distillation in vacuo, bis (2,2-dichlorocyclopropylmethyl) phosphite was obtained. Then, on an analytical balance, 10 g of bis (2,2-dichlorocyclopropylmethyl) phosphite was weighed and dissolved in 1000 ml of distilled water to obtain a 0.01% aqueous solution of the stimulator.

Information sources

1. RU No. 2171799, C1, cl. A01N 59/20, 08/10/2001.

2. RU No. 2128155, C1, cl. C05F 11/02, 03/27/1999.

3. RU No. 2083108, C1, cl. A01M 61/00, 07/10/1997.

4. RU No. 2213452, C1, cl. A01N 65/00, C05F 11/02, 10/10/2003.

5. RU No. 2341079, C1, cl. A01N 65/00, A01P 21/00, 12/20/2008.

Claims (1)

A method of obtaining a plant stimulant containing a 0.01% aqueous solution of bis (2,2-dichlorocyclopropylmethyl) phosphite, which is obtained by the interaction of dimethylphosphite with 2,2-dichlorocyclopropylmethanol, in a molar ratio of 1: 2, stirring for 4 hours at a temperature 60-65 ° C, followed by twofold distillation in vacuo and dissolution of the obtained bis (2,2-dichlorocyclopropylmethyl) phosphite in distilled water to obtain a 0.01% aqueous solution.