Conservação e manejo de um Prodzólico vermelho-amarelo com umbuzeiro em fase juvenil de reflorestamento sob déficit hídrico no semi-árido

Abstract

Although erosion in semi-arid regions conduces to gradual losses of soil productivity and increasing risks of desertification, studies directed to their control through recuperation of eroded soils and protection and improvement of soils still in heder comiiliom' of produclivily and conservation, via forestry systems are virtually nonexistent in Ceará State, Brazil. The present study was developed to evaluate the behavior of umbuzeiro trees on a Red-Yellow Podzolic of Quixada (CE), under conditions of severe water stress and two degrees of erosion, as well as the ejects of soil and water management and conservation practices on their survival and growth according to the following treatments: control (C), organic fertilizer (OF), foliar fertilizer (FF), organic + foliar fertilizers (OFF), mulch (M) and combination of fertilizers + mulch (OFFM). [...]