Evaluation of the prospects of precision irrigation

Abstract

The precision irrigation system is a technology that allows you to supply a metered volume of water directly to the required area of the field, reducing resource costs, providing economically sound and environmentally safe irrigation. The purpose of the work was to develop technical means and devices for wide-range sprinklers for precision irrigation of agricultural crops, ensuring that the volume of water corresponds to the required level of moisture reserves of field areas at the time of their irrigation, and to assess the prospects for using the technology. The article discusses the possibilities of upgrading a wide-range sprinkler machine. A variant with block control of sprinklers according to the accelerated scheme and direct control of the sprinkler through an individual solenoid valve. The regulated water supply was carried out using programmable logic control and electromagnetic valves. The strategy of precision irrigation and the technical means used are given. The characteristics of the machines are considered. In particular, the change in the precipitation layer depending on the irrigation regime. Relationship between operating pressure and change in sprinkler flow. The Christiansen irrigation efficiency coefficient under different irrigation regimes is estimated. Conclusions are made about the effectiveness and expediency of using precision irrigation technology and recommendations are given. Option with frequent block control of sprinklers and direct control of the sprinkler via an individual solenoid valve. The controlled water supply was carried out using programmable logic control and solenoid valves. The strategy of precision irrigation and the technical means used are given. The characteristics of the machines are considered. In particular, the change in the precipitation layer depending on the irrigation regime. Relationship between operating pressure and change in sprinkler flow. The Christiansen irrigation efficiency coefficient under different irrigation regimes is estimated. Conclusions are made about the effectiveness and expediency of using precision irrigation technology and recommendations are given.