SU854325A1 - Method of irrigation of agricultural plants - Google Patents

Description

(54) METHOD OF IRRIGATION OF AGRICULTURAL

CULTURE

I

The invention relates to agriculture and can be used for irrigation of agricultural crops using wide frontal sprinkling machines of positional action on arrays having a complex field configuration.

A gravity irrigation method is known for furrows, in which water is supplied to plants from irrigation furrows, water is supplied to them from a distribution furrow or a distribution flexible pipe or tray (I).

This method requires careful land planning, multiple cutting furrows. The application of this method is associated with high labor costs and water losses for evaporation and filtration.

There is also a known method of irrigation with wide-frontal frontal sprinkling shims of positional action of type 4: Diepr, Volzhanka, which ensures high labor productivity, low water losses and does not require careful field planning (2).

The disadvantage of this method is that it does not provide irrigation of land adjacent to the main array, irrigated by a sprinkler, areas suitable for irrigation, the shape and dimensions of which do not correspond to the shape and colors of the area plotted by the sprinkler from one position. irrigation of these plots is possible under the condition that an additional water supply network is installed, which is not economically feasible.

The purpose of the invention is to increase the irrigated area without the additional cost of the supply network for irrigating and sprinkling the areas of the arrays.

This goal is achieved by the fact that the irrigated massif is divided by the base

IS a plot watered by sprinkler machines and additional plots that are watered through the furrows, and water is poured into the irrigation furrows of the additional plots through the pipelines of the irrigation machines through

 distribution grooves, the beginning of which is located at the ends of the pipelines of the sprinkling machines at their stands at the positions of the main section.

The drawing schematically shows the irrigation system of the array of fields by the proposed method.

The irrigation system includes additional small-contoured areas 1 of a complex configuration adjacent to the main section 2, an irrigation network in the form of a pressure pipeline 3 with hydrants 4 for connecting wide-grip frontal sprinklers 5 of positional action. The irrigation network in areas 1 includes distribution 6 and irrigation 7 furrows. The start of the distribution grooves 6 is located under the end of the pipeline of the sprinkler machine 5 when it is connected to the hydrant 4, serving the same area module to which the small contour section adjoins. The water supply to the irrigated land is dried by a pumping station 8.

Irrigation of the array according to this method is as follows.

Irrigation water is supplied from the source of pumping station 8 to the discharge pipe 3, from where it passes through hydrant 4 to the pipeline of a wide-range sprinkler 5 of positional action. At the same time, the main part of the water flows through the sprinkling devices of the sprinkler machine 5 to irrigate the main sections 2 of the array, and some of it passes through the pipeline of the sprinkler machine 5 and from the end part of the latter flows with adjustable flow to the distribution furrow 6 and from it to the irrigation furrows 7 to moisten soil on an additional small area 1.

The intake flow at the end of the pipeline is adjusted so that it is sufficient to supply the irrigation rate at an additional part of gravity irrigation during the time the sprinkler is standing on the main section of the array, determined by the condition of issuing the required irrigation rate. After that, watering is stopped and the installation is moved to the next position for watering the main area.

The proposed method of irrigating agricultural crops can provide a significant economic effect by including in the irrigated farming system up to an additional 10% more irrigated land with minimal expenditures on the construction of an irrigation network.

Claims (2)

1.Skripchinska L.V., Yangol A.M. Agricultural melioration. Kiev, 1977, p. 34 2. Reference land reclamation. Ed. Maslova, B.S.M., Rosselkhozizdat, 1976, p. 164-165.