The Role of Nitrogen Fertilization in Improving Wheat Crop Yields

Abstract

A field study was conducted during the 2021-22 growing season to
evaluate the effects of different nitrogen levels (0, 40, 80, and 120 kg N
ha⁻¹) on the performance of two wheat genotypes, Galaxyand AZRCDera. The study meticulously gathered detailed data on various growth
and yield parameters, which were then rigorously analyzed. The
findings revealed that AZRC-Dera consistently outperformed
Galaxyacross several key metrics. Throughout the crop growth cycle,
AZRC-Dera produced notably taller plants, a trend that was
significantly enhanced by incremental nitrogen application. The
application of nitrogen at 120 kg ha⁻¹ was particularly effective,
resulting in substantial increases in both the number of tillers and
fertile tillers per plant in AZRC-Dera. Furthermore, the grain yield of
AZRC-Dera was markedly higher compared to Galaxy, underscoring
the genotype's superior responsiveness to nitrogen fertilization. The
study conclusively demonstrated that each incremental addition of
nitrogen fertilizer had a positive impact on the growth and productivity
of the wheat cultivars under investigation. AZRC-Dera, in particular,
exhibited notable superiority in several growth and yield parameters,
making it a promising candidate for achieving higher wheat
productivity through optimized nitrogen management. The research
highlights the critical role of nitrogen fertilization in enhancing wheat
growth and yield, with AZRC-Dera showing significant advantages in
terms of plant height, tiller production, and grain yield. These findings
provide valuable insights for agronomic practices aimed at maximizing
wheat productivity.