Honório Guedes Filho, D., Helena Garófalo Chaves, L., Batista Campos, V., Amilton Santos Júnior, J., Tadeu Lima de Oliveira, J. (2011). 'Production of Sunflower and Biomass Depending on Available Soil Water and Nitrogen Levels', Iranian (Iranica) Journal of Energy & Environment, 2(4), pp. -.