RU1793837C - Composition for pre-sowing treatment of seeds - Google Patents

Abstract

Usage: in agriculture to increase the frost resistance of wheat and its resistance to pathogenic microflora. The inventive wheat seeds are treated before sowing a mixture of the following composition, wt.%: 5,6-dehydro-2-metip-1,4-oxatin-3,3-carboxanilide 7.83 - 10.85; tetramethylthiuram disulfide 4.50-6.23; carboxymethyl cellulose sodium salt 1.17-1.61; pathogenic surfactant 0.67 - 0.92; sulphite-alcohol bard 0.83 - 1.75; benzoylsulfanol sodium salt 0.50 - 0.69; amorphous silica 1.17 - 1.61; drug from endophytnol of fungi of medicinal plants 0.008 - 0.009; water the rest. 1 tab. AND

Description

The invention relates to agriculture and can be used to increase the frost resistance of wheat and its resistance to the effects of pathogenic microflora, which ultimately leads to increased yields.

A known composition for presowing treatment of seeds containing the following components, wt.%:

5,6-dihydro-2-methyl-1,4-oxatin-3,3-carboxanilide 7.67 Tetramethylthiuramdisulfide 4.50 Sodium salt of carboxymethyl cellulose 1.16 Sulphite-alcohol stillage 0.83 Sodium salt of benzenesulfene 0, 50 amorphous silica 0.67

Water

Rest

A dry portion of this composition is marketed under the name phenorams.

The disadvantage of this composition is a narrow range of physiological effects on the objects being processed, in particular, the composition is not active against snow mold, as well as the technological and climatic restrictions when using it: low negative temperatures with high soil moisture, which ultimately leads to insufficient productivity.

The purpose of the invention is to increase the productivity of plants by increasing their protective properties against low freezing temperatures and pathogenic microflora.

The goal is achieved by a new composition for presowing treatment

Xi

Yu

with

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s VI

s

seed containing 5,6-dihydro-2-methyl-1,4-oxatin-3,3-carboxanilide (carboxine), tetramethylthiuram disulfide (TMTD), sodium carboxymethyl cellulose (NaKMlQ, nonionic surfactant (OP-7) , sulfite-alcohol bard (CSP), sodium salt of benzenesulfonol (sulfanol), amorphous silicon dioxide (BS-100) and water, and the composition additionally contains a preparation of endophytic fungi of medicinal plants in the following ratio, May,%: 5.6- dihydro-2-methyl 1,4-oxatin-3,3-carbosanilide 7.83-10.85 Tetrzmethylthiuram-disulfi d 4.50-6.23 Sodium salt of carboxymethyl cellulose 1.17-1.61 Nonionic surfactant 0.67-0.92 Sulphite-alcohol vinasse 0.83-1.15 Sodium salt of benzenesulfonol 0.50 - 0, 69 Amorphous silicon dioxide 1.17 - 1.61 Preparation from endophytic fungi of medicinal plants (symbiont) 0.008 - 0.009 Water The rest of the invention is illustrated by the following examples, which are carried out with 3-fold repetition.

Example 1. 1.0 g of phenoram and 5.0 ml of water are placed in a two-liter flask, stirred for 20-30 minutes, 500 g of Mironovsk 808 seeds are added, mixed for 15-20 minutes, dried in air 20 min and test for germination, frost resistance according to the method (Methods for determining the frost resistance of plants. M ,: Science,

1967, 88). In this and the following examples, the resistance to snow mold is determined using a 5-point system: 5 points - activity of baseazole - 100% suppression

fungal disease. The results are presented in the table.

Example 2. 1.0 g of phenoram, 5 ml of symbiont, 5 ml of water are placed in a two-liter flask, stirred for 20-30 minutes,

500 g of Mironovsk 808 wheat seeds are added, mixed for another 20-30 minutes, air-dried for 20 minutes and tested for germination, frost resistance according to the method (Methods for determining the frost resistance of plants. M., Nauka, 1967.88). The results are presented in the table.

EXAMPLES 3 - 5. Carried out analogously to example 2. In this case, winter wheat of the Zar variety is used. The composition used

compositions, as well as test results are presented in the table.

Project 6. Processing with one symbiont is carried out analogously to example 2, the test results are presented in the table.

Example. Water treatment is carried out, the test results are presented in the table.

As can be seen from the results, the laboratory

the germination of winter wheat treated with the proposed composition is increased by 24% (examples 2 to 5), while the germination of seeds treated only with phenoram or symbiont is increased

respectively, by 10 and 6% (examples 1 and 6) with respect to the germination of untreated seeds (example 7).

The obtained results of field tests indicate that the use of the proposed composition makes it possible to enhance the protective properties of plants under conditions of wintering from 1989 to 1990 to the effect of snow mold on the pathogenic microflora.

Formula A from Breteni

A presowing seed treatment composition comprising 5,6-dihydro-2-methyl-1,4-oxatin-3,3-carboxanilide, tetramethylthiuram disulfide, carboxymethyl cellulose sodium, nonionic surfactant, sulphite-alcohol vinasse, sodium benzenesulfonol salt, amorphous silica and water, characterized in

that, in order to increase plant productivity by increasing their protective properties against low negative temperatures and pathogenic microflora, it additionally contains a drug from endophytic fungi of medicinal plants in the following ratio of components, May. %:

5,6-dihydro-2-methyl1, 4-oxatin-3-, 3-carboxanilide 7, 83 - 10.85.