DEVELOPMENT AND EVALUATION OF A PRECISION IRRIGATION SYSTEM, WITH AUTOMATIC DRIVE, FOR FAMILY AGRICULTURE
precision irrigation, micro-irrigation, family farming; technological development, automation
Agriculture has great economic and social power, in addition to consuming on a large scale a vital resource for humanity, water. In order to increase the efficiency of water consumption, several technological changes have been implemented in the agricultural sector, seeking to optimize the efficiency of irrigation systems and water use efficiency. Among these technological changes, the concept of Precision Agriculture is increasingly widespread, presenting itself as a solution in the planning and management of irrigated agriculture. The production of vegetable crops is predominantly carried out by family farming and the most used irrigation system is conventional aspersion, which is characterized by the application of uniform water throughout the planting area. However, the use of this system is not very convenient, since the gardens present high spatial variability of water consumption, that is, the uniform application of water in these environments can generate a loss of water use efficiency, because some areas are excessively irrigated and /or other crops are exposed to water deficit. Therefore, this work seeks to develop an irrigation system aimed at family farming, aiming at automation and precision irrigation, which meets the criteria of spatial variability existing in vegetable gardens. A mobile drip bar connected to a winding reel will be designed, which will move automatically and will have its linear displacement, irrigating four beds at the same time. The irrigation depth will be controlled by two factors, through the displacement speed and the operating time of the electric valves. Through the displacement speed, the smallest blade needed will be applied at the site and the additional blade to the other crops will be applied through the valves operating time. The project will be developed at the Engineering Department, at the Institute of Technology of the Federal Rural University of Rio de Janeiro – UFRRJ, where the prototype will be built and the performance of the equipment will be evaluated. The evaluation will take place in the Integrated System of Agroecological Production (SIPA – Fazendinha Agroecológica), which has great diversity in vegetable crops. After the methodological steps are carried out, it is expected to obtain a low-cost equipment that meets the producers of family agriculture, with high efficiency and precision, with localized application, according to the demand of the culture, so that the workforce is reduced. with highly efficient equipment. In addition to obtaining robust, modern and high-tech equipment, the purpose is to make Precision Agriculture accessible to the small producer, so that it meets their needs.