THE EFFICIENCY OF DRAINAGE SYSTEMS AT RECLAMATION OF WETLAND SOILS OF THE NONCHERNOZEM ZONE OF THE RUSSIAN FEDERATION
The article deals with the problem of reclamation of wetlands for agriculture, described in detail the drainage system that will increase the efficiency of their use. Drainage system comprising a well with radial drains and a water intake, wherein the well and the water intake are located at different levels, characterized in that the water intake is made by an open channel connected by a conducting discharge pipe with a collecting well with radial drains, regulating structure, which is placed at the end of the conducting discharge pipe over the open channel and is made of a vertical branch pipe with adjustable bellows, a short drain pipe, providing free drainage of water into the open drain pipe channel, in this case, the bellows and the spillway are connected by means of a rod pivotally to the end of the lever in the form of a drive associated with the load-float, the lever is connected to the middle part with the side of the collector well, and the other end is provided with a load-float with the possibility of vertical movement relative to the movement of the bellows with the spillway to the opposite, regulating structure with the collector well are arranged in a sequential order, in this case, the collector well is additionally equipped with a working chamber with a float load and a separation partition is installed with a gap relative to the bottom of the collector well, and the vertical branch pipe in its lower part is provided with a discharge tube with a valve. The analysis of crop yields in the regulation of water regime of land and without regulation.