Stone, Luis Fernando, Paulo Leonel Libardi, and Klaus Reichardt. 2014. “Water Stress, Vermiculite and Cultivars. II. Effect on Nitrogen Utilization by Rice”. Pesquisa Agropecuaria Brasileira 19 (11):1403-16. https://doi.org/10.1590/S1678-3921.pab1984.v19.16196.