Evaluation of N losses in sugarcane fields with green cane harvesting system

• Grant number: 98/04962-0
• Support Opportunities: Regular Research Grants
• Start date: August 01, 1998
• End date: September 30, 2001
• Field of knowledge: Agronomical Sciences - Agronomy
• Principal Investigator: Rosana Faria Vieira
• Grantee: Rosana Faria Vieira
• Host Institution: Embrapa Meio-Ambiente. Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA). Ministério da Agricultura, Pecuária e Abastecimento (Brasil). Jaguariúna , SP, Brazil

Abstract

The harvesting of green sugarcane has continued to gain increasing acceptance in areas which permit the harvesting with machines. In these conditions, however, urea, a nitrogenated fertilizer much used in sugarcane plantations, may suffer large losses through volatization. The presence of straw, therefore, should lead to changes in the application of nitrogenated fertilizers to be used on the sugarcane. Such fertilizers, however, could influence in a marked manner the microbiological activity of the soil or even in the immobilization of N by the microorganism causing undesirable losses of that element of the system. Thus, the aim of this project is to evaluate N losses in sugarcane cultivations. (AU)