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O manejo e a cobertura influenciam na erosao do solo. Os objetivos desse experimento foram determinar as perdas de solo e agua e os fatores da Equacao Universal de Perda de Solo (EUPS) em condicoes de chuva natural em um Latossolo Vermelho Amarelo com declividade media de 20%. Foram avaliados tres tratamentos relativos ao manejo do solo e da vegetacao de cobertura. Para cada tratamento foram instaladas duas parcelas. As parcelas apresentaram tratamentos diferenciados, correspondentes a duas formas de cobertura do solo e um tratamento com solo descoberto: solo exposto, pastagem de Brachiaria decumbens cv. Basilisk e area manejada com o consorcio milho e braquiaria (integracao lavoura-pecuaria). O valor considerado para o fator (P) foi de 0,5. As perdas de solo e agua foram: 117,79 t ha -1 e 2.372,230 L ha -1 ; 94,68 t ha -1 e 2.086,570 L ha -1 ; 20,50 t ha -1 e 1.687,135 L ha -1 para o solo exposto, braquiaria e braquiaria com milho, respectivamente. O fator erosividade (R) foi de 7.589 MJ mm ha -1 h -1 ; o de erodibilidade (K) 0,009 t ha MJ -1 mm -1 , enquanto os valores do fator (C) foram de 1, 0,54 e 0,15 para os tratamentos solo exposto, braquiaria pura e para o consorcio milho com braquiaria, respectivamente. Dessa forma, concluiu-se que, o consorcio milho com braquiaria reduziu as perdas de solo e agua em relacao a parcela com solo exposto e a parcela apenas com braquiaria. ABSTRACT The erosion is influenced by the management and soil cover. The aim were to determinate the soil and water losses and the factors of the Universal Soil Loss Equation (USLE) in natural rainfall conditions under Oxisol with 20% slope. Three managements were evaluated: soil without plant cultivation, Brachiaria decumbens signal cultivation and crop-pasture integrated system. In each management, two plots were implemented. The assumed value of the factor P (practice factor) was 0,5. The soil and water losses were of 117,79 t ha -1 and 2.372,230 L ha -1 , 94,68 t ha -1 and 2.086,570 L ha -1 , 20,50 t ha -1 and 1.687,135 L ha -1 for the soil without plant cultivation, B. decumbens signal cultivation and maize with B. decumbens consortium, respectively. The rainfall and runoff factor (R) was 7.589 MJ mm ha -1 h -1 and the soil erodibility factor (K) was 0,009 t ha MJ 1 mm -1 . The values of cover and management factor (C) were of 1, 0,54 e 0,15 for the soil without plant cultivation, B. decumbens signal cultivation and maize with B. decumbens consortium, respectively. Thus, it was concluded that maize with B. decumbens consortium reduced losses of soil and water compared to soil without plant cultivation plot and B. decumbens signal cultivation plot. Keywords: crop-pasture integrated system, runoff, universal soil loss equation.

Erosão Potencial Laminar Hídrica em um Latossolo Vermelho Amarelo sob Três Formas de Cultivo (Water Layer Erosion Potential in an Oxisol Under Three Cultivation Forms)