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|Title:||Best practices of nitrogen fertilization management for sugarcane under green cane trash blanket in Brazil|
|Author:||Castro, Sérgio Gustavo Quassi de|
Decaro Jr., Sérgio Tadeu
Franco, Henrique Coutinho Junqueira
Magalhães, Paulo S. Graziano
Mutton, Miguel Angelo
|Abstract:||The low efficiency of nitrogen (N) use from fertilizer applied to sugarcane is a major concern worldwide threatening the sustainability of sugarcane production. Further, the significance of N losses to the environment is becoming more important as global warming becomes a more significant issue. Improving nitrogen use efficiency is a major challenge for sugarcane cropping systems worldwide. Amongst other factors, N application method has a significant effect on the efficiency with which N is used by the crop. In Brazil, the sugar industry is rapidly moving towards green cane harvesting and the maintenance of a trash blanket (GCTB) between crops in a cycle. However, there is limited information regarding the most appropriate nitrogen fertilizer placement between ratoon crops in a GCTB system. The aim of this research was to evaluate the effect of different nitrogen application methods on the productivity of ratoon sugarcane being grown under a green cane trash blanket (GCTB) system. The application methods tested were: (1) control (no fertilizer applied), (2) fertilizer incorporated at 0.2 m in the centre of each interrow, (3) fertilizer applied to the GCTB surface in both sides of the row, and (4) fertilizer incorporated at 0.08 m depth in both sides of the row. The incorporation of the fertilizer at 0.08 m depth on both sides of the row resulted in the best agronomic performance, producing approximately 13 and 12 % more cane tonnage and sugar yield, respectively, when compared to band surface application, which was the second best method.|
Adubos e fertilizantes
|Appears in Collections:||FEAGRI - Artigos e Outros Documentos|
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