Rodrigues, M. A.; Gomes, V.; Dias, L. G.; Pires, J.; Aguiar, C.; Arrobas, M. Evaluation of Soil Nitrogen Availability by Growing Tufts of Nitrophilic Species in an Intensively Grazed Biodiverse Legume-Rich Pasture. Span. j. agric. res. 1, 8, 1058-1067.