| 摘要 |
FIELD: agriculture.SUBSTANCE: system comprises a source of irrigation, water intake facilities connected to self-pumped pipeline, irrigation sites with compacted irrigation furrows. The self-pumped pipeline is connected through valves with diaphragm actuators to a pair of distribution pipelines. The irrigation pipelines are laid on the maximum slope of the terrain. The upper part of the irrigation sites with compacted irrigation furrows is laid at an angle to the terrain contour lines, and the lower part - parallel to horizontal lines. On the irrigation pipelines the hydraulic step motors are mounted. The hydraulic motors are connected to the spherical distribution valve. The spherical distribution valve outlets are connected by tubes to the water-distributing furrows. Through the water-distributing furrows the water is supplied to pairs of compacted irrigation furrows located at the edges of the beds. The upper part of the irrigation furrows is laid at a mild slope along the terrain contour lines. The lower part of the irrigation furrows is made in the form of deep irrigation furrows laid without slope. In the middle of the beds the trenches of up to one metre depth are laid, which are filled with peat and manure. The center of the beds is covered with trash mulch. The screens of ameliorative film are laid below the irrigation furrows. Above the screens of ameliorative film in the soil active layer of the beds a 5-10 cm layer of sand or gravel is laid. The irrigation control unit is connected to the valves diaphragm actuators.EFFECT: construction enables to improve the uniformity of soil moisture, moisture capacity of the soil active layer, to prevent the water loss for depth filtration.2 dwg |
