Influence of Phosphorus Or Phosphorus-Potassium Fertilization on Biomass and Dinitrogen Fixation of the Stem-Nodulating Green-Manure Legume Sesbania rostrata in Different Marginally Productive Wetland Rice Soils - Engels, K.A.; Becker, M.; Ottow, J. C. G.; Ladha, J.K. (Springer, 1995)