Machinery & Energetics

The work is devoted to the consideration of the methods of programming watering in buildings of protected soil. Different methods of watering programming and means of obtaining information for them are considered. Experimental results are given for determining the value of transpiration for programming of irrigation in protected ground structures. The need for plants in water, which goes mainly to transpiration, is satisfied with absorption of its roots from the soil. The cost of water and its preparation for irrigation make a significant part in the total costs of growing the products in greenhouses, but saving water, which does not lead to lower yields, is possible only with the correct definition of water regime of plants, that is, with proper programming of irrigation in structures of protected soil. The aim of the study is to develop a system of automatic watering of plants, which allows to take into account the needs of plants in humidity and suitable for use in production conditions. The study found that the transpiration value can be determined by the empirical formula. The use of programmable irrigation in protected ground structures, depending on the parameters of the microclimate, allows to reduce energy consumption and increase adaptive predisposition of plants to perturbing factors.

іrrigation, protected soil, programming, transpiration