The objective of the present study was to assess the influence of irrigation management in the production of Mombaça grass in two distinct types of soil. The experimental material used was the Panicum maximum (Jacq.) cv. Mombaça, developed by Embrapa – Centro Nacional de Pesquisa de Gado de Corte (National Beef Cattle Research Center). Research took place in arched greenhouse located in the experimental area of the Escola Superior de Agricultura “Luiz de Queiroz”, in Piracicaba-SP - Brasil. Two experiments using different types of soil (sandy and loamy) were conducted using a randomized block design, in a factorial (4x3) arrangement, with four levels of soil water depletion (15%, 30%, 45% and 60%) in three harvests, with four repetitions. The experimental unit consisted of a 21 L pot, with 0.30 m of depth and a surface area of 0.07 m2 . As results it was observed that the water use efficiency increased with the addition of water availability in the Nitosol. The grass showed sensitivity to water deficit, with higher production when irrigated with 30% depletion of available water capacity in both soils.
