Published in Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1
Written by Lucian RAUS, Diana BOLOHAN, Cosmin MOLOCEA
Efficient nitrogen (N) management is essential for improving yield and grain quality in winter wheat (Triticum aestivum L.). This study evaluated the effects of different spring-applied nitrogen fertilization strategies on grain yield, nitrogen use efficiency, and quality parameters of winter wheat. Field experiments compared conventional mineral fertilization based on urea (U46) and ammonium nitrate (AN34) with advanced fertilization systems, including a controlled-release nitrogen fertilizer (NS27) and a liquid nitrogen fertilizer (NS19). Grain yield, partial factor productivity of nitrogen (PFPN), nitrogen content in grain and straw, and quality traits such as thousand-kernel weight, test weight, protein content, and gluten content were assessed. Controlled-release nitrogen applied at the onset of spring regrowth achieved grain yields comparable to conventional fertilization while significantly increasing partial factor productivity of nitrogen (PFPN) and reducing nitrogen accumulation in straw. Late application of controlled-release nitrogen enhanced grain protein and gluten content without compromising yield. Liquid nitrogen fertilization showed relatively high nitrogen efficiency but resulted in lower yields when not combined with nitrate-based nitrogen sources.
[Read full article] {simplepopup link="Citation12"}[Citation]
{/simplepopup}
{simplepopup popup="false" name="Citation12"}RAUS L., BOLOHAN D., MOLOCEA C. 2026, MODERN NITROGEN FERTILIZATION STRATEGIES FOR IMPROVING EFFICIENCY AND GRAIN QUALITY IN WINTER WHEAT. Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1, ISSN 2285-5785, 106-116. {/simplepopup}