Avaliação de Sistemas de Irrigação em Perímetros Públicos da Bahia e Pernambuco

Abstract

The contribution of socioeconomic Project Development Company of the Valleys of San Francisco and Parnaíba (CODEVASF) carried out in Petrolina (Pernambuco) and Juazeiro (BA) plays an important role of sustainability based on the production of fruits, generating employment and income . This work aimed to study the physico-hydric soils and evaluate the quality of irrigation on the basis of performance indicators in the current conditions of handling and operation of irrigation systems in irrigated areas of Nilo Coelho, Bebedouro located in Petrolina and Maria Tereza located in the cities of Casa Nova - BA and Petrolina-PE, in 32 irrigated plots. Samples were collected at two depths (0-0.3 m and 0.3 to 0.6 m) of different soil profiles cultivated with various crops. Parameters evaluated: granulometry, density, porosity, macro and micro, retention curve, soil water, total water storage in soil (CTA) and actual capacity of water (CRA). The quality of irrigation was evaluated based on performance indicators (CUC and CUD) in four irrigation systems (sprinkler, sprayer, drip and furrow). The irrigated areas had different textures, light compaction problems in most horizons studied. The micro sprinkler irrigation systems and drip was more efficient than sprinkler irrigation and conventional furrow.