The method of nitrogen (N) application and the choice of maize hybrid significantly influence nitrogen use efficiency (NUE). Applying N in rows or combining row placement with top dressing improves N uptake and fertiliser recovery compared to traditional broadcast methods. These practices help reduce losses and increase the return on fertiliser investment. Hybrid selection also matters: stay-green types tend to maintain N uptake longer into the season, which can enhance overall efficiency. However, they may show lower internal N use efficiency, meaning not all absorbed N is effectively converted into yield. For optimal results, farmers should align fertiliser placement strategies with hybrid characteristics and field conditions to maximise both productivity and sustainability.
Combining right nitrogen placement and cultivars for maize
Content Author: CDR