1. Irrigation Manual;Bernardo,2006
2. CONAB. Brazilian sugarcane harvest 2012/2013., 2013. Comparative area, production and productivity. Available: http://www.conab.gov.br (Accessed 11 January 2013). (In Portuguese).
3. CONAB. Brazilian corn harvest 2012/2013., 2013. Comparative area, production and productivity Available: http://www.conab.gov.br (Accessed 11 January 2013). (In Portuguese).
4. Yield response to water;Doorembos,1979