FIELD: physics.
SUBSTANCE: water flow is passed through the soil sample, a weight is placed on the surface of the soil sample, the beginning of the weight immersion is recorded, the parameters of the sample and the water flow are measured, the soil filtration coefficient is calculated by the measured indices, the concentration of glyphosate in the water flow passed through the soil sample is recorded and if the concentration is decreased by more than 10% of the initial value, a solution of glyphosate is introduced into the water flow directed to the soil sample, restoring its concentration in the water flow passed through the soil sample to the initial value.
EFFECT: determining the filtration coefficient of the running soil exposed to glyphosate solution.
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