RU2725827C1 - Method of seeds treatment - Google Patents

Abstract

FIELD: agriculture.SUBSTANCE: disclosed is a method of treating seeds, comprising fungal and chemical preparations on a batch of seeds for destroying spores of phytopathogenic microorganisms. Mineral-cotton substrate is pre-treated with a preparation based on Trichoderma spp. for 2-3 days, then spores of pathogenic microorganisms are destroyed on the surface of seeds by etching with a preparation based on fludioxonil, after which the treated seeds are introduced into a substrate with Trichoderma spp.EFFECT: invention is aimed at increasing the phytopathogenic microorganisms control effectiveness.1 cl, 2 ex

Description

The invention relates to agriculture and crop production and can be used for presowing treatment of seeds.

A known method of pre-treatment of seeds with a semi-liquid paste of finely ground glauconite, which included an accumulative culture of bacteria Pseudomonas sp. (RU, C1, No. 2612368, 2017).

The disadvantages of this solution is the low efficiency of the fight against phytopathogenic microorganisms.

Closest to the claimed invention is a method of seed treatment, providing for bacterial and drug exposure to a batch of seeds to destroy spores of pathogenic microorganisms (RU, C1, No.

A disadvantage of the known solution is the low efficiency of the fight against phytopathogenic microorganisms.

The claimed invention is aimed at improving the effectiveness of the fight against phytopathogenic microorganisms.

The specified technical result is achieved by the fact that in a seed treatment method involving fungal and chemical preparative effects on a seed batch in order to destroy pathogenic microorganism spores, the mineral wool substrate is preliminarily treated with a Trichoderma spp-based preparation, after which the main amount of phytopathogenic microorganism spores on the seed surface is destroyed by etching with a phenylpyrrole-based preparation, then the treated seeds are introduced into the substrate with Trichoderma spp.

Fludioxonil is used as phenylpyrroles.

Since the claimed invention differs from the closest analogue, it meets the condition of patentability “novelty”.

The implementation of the claimed invention does not contradict the well-known laws of physics and mechanics, which allows us to confirm its compliance with the patentability condition “industrial applicability”.

Since from known sources of information, the method of placing etched seeds in a mineral wool substrate with the highest bacterial activity is not known, the claimed invention meets the condition of "inventive step".

The method is implemented as follows.

Before planting the seeds, the mineral wool substrate is treated dry or spilled with a liquid preparation based on Trichoderma spp . The optimal cell concentration should be CFU = 1 * 10 ⁵ -1 * 10 ⁶ , substrate moisture content - 70%. Processing takes place 2-3 days before the introduction of the pickled seeds into the substrate. During this time, Trichoderma spp. goes into the exponential phase of growth. The optimum temperature in the greenhouse is 25-28 ° C. Thus, by the time of sowing seeds in substate, the fungus acquires the greatest activity.

Before planting in the substate, the seeds are etched with phenylpyrrole-based preparations.

Example 1. The seeds of the cucumber brand “Athlete-F1” are soaked in a solution of the drug “Maxim”. The drug belongs to the class of chemicals “phenylpyrroles”, has the active substance - “fludioxonil” at a concentration of 25 g / l. The drug is used for seed dressing and less often for the treatment of plants with signs of disease. The recommended concentration for treatments is 2 g / l.

The preparation of the solution and the time of soaking are observed in accordance with the manufacturer's instructions and the norms specified in the list of pesticides and agrochemicals permitted for use on the territory of the Russian Federation. Soaking time is 30 minutes. The biological effectiveness of etching is determined using the biological (roll) method on seedlings of cucumber culture and on nutrient media with a culture of the pathogen Fusarium oxysporum . The biological effectiveness of the drug should be 80-100%. Then, the pickled seeds are planted on a substrate with the Trichoderma viride fungus in the active growth phase. The recommended temperature in the greenhouse is 25-28 ° C.

Example 2. Seeds are similarly soaked in the preparation “Maxim” for 30 minutes, after which they are treated with dry Trichoderma viride. The optimal cell concentration should be CFU = 1 * 10 ⁵ -1 * 10 ⁶ . To determine the concentration of surviving Trichoderma viride cells, a Koch microbiological study is performed. The concentration of surviving cells should reach more than 50%. The pickled seeds are planted in a substrate at a temperature in the greenhouse of 25-28 ° C.

Claims (1)

A seed treatment method involving fungal and chemical preparative effects on a batch of seeds to destroy spores of pathogenic microorganisms, characterized in that the mineral wool substrate is pretreated with a preparation based on Trichoderma spp. within 2-3 days, then destroy the spores of pathogenic microorganisms on the surface of the seeds by etching with a drug based on fludioxonil, after which the treated seeds are applied to a substrate with Trichoderma spp.