Effect of Nitrogen Rates and Application Time on Sugarcane Yield and Quality
Document Type
Article
Publication Date
1-1-2015
Abstract
Current sugarcane nitrogen (N) rate recommendations are based of crop age and soil type. Fertilization is typically done up to two months prior to rapid N uptake by sugarcane crop. This study was established to evaluate the effect of N rate and application timing on sugarcane yield and quality. Treatments included four different N rates (0, 45, 90, and 135 kg N ha−1) and four different application times (mid-April, late-April, mid-May, and late-May) arranged in a split-plot design with application time as the main plot and N rate as the sub-plot. Two of three site-years showed a significant positive effect of N rate on sugarcane yield. Further, the critical N rates range from 40 to 60 kg N ha−1 for responsive years, which is lower than current N rate recommendations. Results indicated that N fertilization could be delayed to later in the growing season in 5 of 6 s
Publication Source (Journal or Book title)
Journal of Plant Nutrition
First Page
161
Last Page
176
Recommended Citation
Lofton, J., & Tubaña, B. (2015). Effect of Nitrogen Rates and Application Time on Sugarcane Yield and Quality. Journal of Plant Nutrition, 38 (2), 161-176. https://doi.org/10.1080/01904167.2013.828752
