Trivelin, P. C. O., Victoria, R. L. and Rodrigues, J. C. S. (1995) “Utilization by late harvest sugar cane ratoon of nitrogen from 15N-aqua ammonia and 15N-urea applied to the soil as vinasse N-complement”, Pesquisa Agropecuaria Brasileira, 30(12), pp. 1375–1385. doi: 10.1590/S1678-3921.pab1995.v30.4437.