FIELD: agriculture.
SUBSTANCE: to control the closed drainage-humidification system using livestock sewage, a site is arranged, in which a closed manifold 1 is laid in the soil, a perforated drain 3 is connected to it using a vertical riser 2. The drain 3 is arranged in plan in the form of a spiral, each concentric circle of which drains a separate zone with the common geometric center. The free end 4 of the perforated drain 3 is plugged. Above the water outlet of the manifold 1, a meter in the form of a vertical pipe 5 is arranged, its free end is led out above the ground, covered with a lid on top and placed inside a metal casing. The duration of the wetland area segment presence in the action area of drainage water and groundwater is measured. Wherein the water volume is accumulated by means of the manifold 1 in the vertical pipe 5 due to turning off the tap 10 in the end open area of the manifold 1, then water samples are taken by a small volumetric metal vessel 7 suspended from a flexible rod 8, and the container 9 disposed near the range is filled. However, the manifold 1 is preliminarily briefly flushed from sedimented alluvial precipitation and water stagnation therein. The water samples are delivered to the chemical laboratory, the concentration of pollutants is measured, compared with the permissible values, and, based on the comparison results, the conclusion on the performance of the closed drainage-moisturizing system is made according to environmental parameters related to the irrigation with drainage or livestock sewage.
EFFECT: invention reduces the labour consumption of control due to reducing the number of sampling wells, ensures the accuracy improvement of measuring water samples and the determination of the concentration of nitrates, keeps groundwater from the influence of harmful substances entering through drainage during irrigation with livestock drains.
3 cl, 3 dwg
