Arf, O., Portugal, J.R., Buzetti, S., Antônio Ferreira Rodrigues, R. and Estáquio de Sá, M. 2018. Crop rotation, green manure and nitrogen fertilizers in upland rice under no-tillage. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]. 48, 2 (Jun. 2018), 153–162.