Trivelin, P. C. O., Rodrigues, J. C. S., & Victoria, R. L. (1996). Utilization by early harvest sugar cane ratoon of the nitrogen from 15N-aqua ammonia and 15N-urea applied to the soil as vinasse N-complement. Pesquisa Agropecuaria Brasileira, 31(2), 89–99. https://doi.org/10.1590/S1678-3921.pab1996.v31.4457