Santos, A., Valencia, E., Román-Paoli, E. and Ramos-Santana, R. (2011) “Planting season and date of harvest effect on biomass production and nitrogen contribution of Crotalaria juncea L. ’Tropic Sun’ in southwestern”, The Journal of Agriculture of the University of Puerto Rico, 95(3-4), pp. 169–178. doi: 10.46429/jaupr.v95i3-4.2573.