Work

Technological quality and yield of sugarcane grown under nitrogen doses via subsurface drip fertigation

Year: 2016

Type: article

Abstract: ABSTRACT 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.

Source: Revista Brasileira de Engenharia Agrícola e Ambiental

DOI: 10.1590/1807-1929/agriambi.v20n3p209-214

Authors: Andressa F. L. Rhein, Renata P. Pincelli, Marcel T. Arantes, William J. Dellabiglia, Oriel T. Kölln, Marcelo de A. Silva