Authors: Martinez, GA Guzman, JL Vazquez, MA Rivera, LE Gonzalez, A

Citation: Ga. Martinez et al., Chemical and physical properties of two tropical soils treated with sewagesludge compost, J AGR U P R, 83(3-4), 1999, pp. 103-121

Authors: Martinez, GA Olivieri, L Castro, JA Muniz-Torres, O Guzman, JL

Citation: Ga. Martinez et al., Phosphorus status of soils from the poultry zone in Puerto Rico, J AGR U P R, 83(1-2), 1999, pp. 1-17