Amorim Neto, S. et al. 1998. Rice grain yield increase in Rio de Janeiro State from 1981/82 to 1991/92. Pesquisa Agropecuaria Brasileira. 33, 3 (Mar. 1998), 369–374. DOI:https://doi.org/10.1590/S1678-3921.pab1998.v33.4855.