RU1790344C - Method of furrow irrigation - Google Patents

Abstract

The invention relates to agricultural technology in the field of irrigated ice milling, and in particular to irrigation of agricultural crops with furrows. The purpose of the invention is to save irrigation water, reduce the number of irrigations and reduce labor costs when irrigating along furrows on compacted soils. Before cutting the furrows, the soil is loosened in layers to a depth of 0.5-0.6 m using a V-ripper. The upper layer is loosened parallel to irrigation furrows 3, and the lower layer is perpendicular to them with the formation of ridges at the bottom. In this case, the working surfaces of the feeder-waterway 1 and ridges of irrigation furrows smoothly mate. The losses of irrigation water are reduced, the number of irrigations is reduced, and labor costs are reduced. 4 sludge.

Description

Fie. 1

The invention relates to irrigated agriculture and, in particular, to irrigating agricultural crops on compacted soils along furrows.

The design of the irrigation furrow in the form of an inverted trapezoid, cut by a furrow cutter along a slope, is known. A feeder conduit is laid in the upper part of the furrow in the form of a channel or a pipeline, and in its lower part - a channel for discharging waste water. During irrigation, water from the feedwater enters the furrows, moistens the soil around the furrows for subsequent consumption by plants. Part of the water enters the discharge channel and is diverted beyond crop rotation or reused for irrigation.

During irrigation along such furrows, soil filtration seals around the furrow to a great depth (0.5-0.6 m) are formed, as a result of which the amount of absorbed water, which in transit enters the discharge channel, is reduced. Deep soil compaction also occurs as a result of multiple passes of agricultural machines during the processing of crops. When irrigating along such furrows under conditions of soil compaction, a large overrun of irrigation water is formed, the number of irrigations increases, and labor costs increase.

The aim of the invention is to save irrigation water, reduce the number of irrigations and reduce labor costs when irrigating along furrows on compacted soils.

This goal is achieved by the fact that in the method of irrigation with furrows, including cutting sown irrigation and outlet furrows, supplying water from the feed water to irrigation furrows and discharging water into the outlet furrows, before cutting the furrows, the soil is loosened in layers to a depth of 0.5 -0.6 m using a V-shaped cultivator, while the upper layer is loosened parallel to the irrigation furrows, and the lower layer is perpendicular to them with the formation of ridges at the bottom, and the working surface

The conduits of the feeder and irrigation furrow ridges smoothly interfaced.

In FIG. 1 shows the design of an irrigation furrow on compacted soils; in FIG. 2 is a section AA in FIG. 1; in FIG. 3 is a section BB in FIG. 1; in FIG. 4 is a section BB in FIG. 1.

The design of the irrigation furrow on compacted soils includes a feed water supply in the form of a channel 1 (or pipeline), a channel 2 for waste water, irrigation furrows 3 in the form of an inverted trapezoid. The bottom of the irrigation furrow is made in the form of ridges 4 and 5 located parallel to the direction of the furrow in its upper part and perpendicular to its lower part. The working surface of the water supply 1 is smoothly mated with the ridges of the irrigation furrow 4 of curve 6.

Tillage of compacted soil is carried out using a V-tiller. In this case, the upper part is loosened in the direction of the irrigation furrow, and the lower part is perpendicular to it. Curved section 6 is provided by smoothly deepening the ripper. Water from the feed-water conduit 1 enters the soil through the furrow 3 and along the curved section 6. providing quick movement of irrigation water along the loose soil in the upper part of the floor. The increase in roughness in the form of perpendicular ridges 5 contributes to accelerating the run-up of irrigation water to the end of the floor.

Thus, the soil is moistened on two sides: from the top of the furrow 3 and from the bottom along ridges 4 and 5. Irrigation water at the end of the plot is not discharged into the canal 2 from the furrows 4 and 5, thereby achieving its economy, and the number of irrigations is reduced, since the capacity for irrigation water, which is located in the lower layers, is increased. This leads to a reduction in the number of irrigations and a reduction in labor costs. The length of the irrigation furrow should be set equal to 80-120 m, depending on the slope of the terrain and the cultivated crop, and the depth of cultivation is 0.5-0.6 m.

Claims (1)

SUMMARY OF THE INVENTION A method for furrow irrigation comprising cutting sown irrigation and outlet furrows, supplying water from a feed conduit to irrigation furrows, and discharging water into the outlet furrows, characterized in that what. in order to save irrigation water. reduce irrigation and labor costs when irrigation along furrows on compacted soils, before cutting the furrows, the soil is loosened in layers to a depth of 0.5-0.6 m using a V-ripper, while the top layer is loosened parallel to the irrigation furrows, and lower - perpendicular to them with the formation of ridges on ridges and ridges of irrigation grooves of ridges, and working surfaces mate mating smoothly. Fig Fig.Z