Stone, L.F., Libardi, P.L. and Reichardt, K. (2014) “Water stress, vermiculite and cultivars. II. Effect on nitrogen utilization by rice”, Pesquisa Agropecuaria Brasileira, 19(11), pp. 1403–1416. doi:10.1590/S1678-3921.pab1984.v19.16196.