METHOD FOR DIFFERENTIATED MANAGEMENT OF IRRIGATION OF CROPS AND DEVICE FOR ITS IMPLEMENTATION

摘要

FIELD: agriculture.SUBSTANCE: group of inventions refers to the field of agriculture and can be used in irrigation of crops. Method of differentiated irrigation management includes the measurement of soil moisture and meteorological parameters, analysis of the mathematical model of soil moisture reserves and the definition of irrigation norms. Mathematical model of the dynamics of the reserve of soil moisture includes the total biomass and crude mass of plants and is supplemented by a model of the relationship between the parameters of plant biomass and their optical reflectance. Parameters of biomass and moisture reserve in the soil at all elementary sites of the field are estimated by means of aerial remote sensing data and mathematical models used. Based on the parameters obtained, the optimum average irrigation rate and irrigation rates for individual elementary areas are determined. Device for the differential management of irrigation of crops contains a multispectral remote sensing device, multichannel block for the formation of optimum irrigation norms and a control unit for the motion of the sprinkler. Remote sensing device is based on an unmanned aerial vehicle. Irrigation nozzles sprinkler equipped with controlled shut-off valves, flow meters and local regulators irrigation norms. Specified moisture regime of crops is provided.EFFECT: accuracy of determining irrigation norms is increased.7 cl, 8 dwg