This study characterized the technological quality and yield of sugarcane cv. SP80-3280 under nitrogen doses via subsurface drip fertigation. Five treatments were established using N-fertilizer in the form of urea (0, 50, 100, 150 and 200 kg N ha-1), with four replicates, applied via subsurface drip fertigation. The technological quality (fiber% cane; Brix% juice; pol% juice, pol% cane; juice purity and total recoverable sugar -TRS), as well as yield of stalks and sugar were determined 381 days after the third harvest. The technological variables Brix%, pol% juice, purity% and TRS of sugarcane, cultivar SP80-3280, were altered by the application of nitrogen doses via subsurface drip fertigation, with significant reductions at the dose of 200 kg N ha-1. Stalk and sugar yields increased linearly with the increment in nitrogen doses applied through subsurface drip fertigation.
|Translated title of the contribution||Technological quality and yield of sugarcane grown under nitrogen doses via subsurface drip fertigation|
|Number of pages||6|
|Journal||Revista Brasileira de Engenharia Agricola e Ambiental|
|State||Published - Mar 2016|
- Full irrigation
- Nitrogen fertilization
- Pol% cane
- Saccharum spp.