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<p>The challenges posed by climate change and resource scarcity necessitate the development of innovative strategies for sustainable wheat production in semi-arid regions. This study evaluated the interaction between tillage systems and nitrogen (N) fertilization on bread wheat (<i>Triticum aestivum</i> L.) performance in Morocco’s Saïs region. A field experiment was conducted over two growing seasons using a randomized complete block design with a split-plot arrangement. The plots comprised tillage systems (conventional tillage, no-till), while the subplots contained four nitrogen rates (0, 50, 100, 150&#xa0;kg N ha⁻¹). In the first year (wet season), no-till (NT) with 150&#xa0;kg N ha⁻¹ produced the highest grain yield (4275&#xa0;kg ha⁻¹), approximately 7% greater than conventional tillage (CT). In the second year (dry season), the maximum yield (2274&#xa0;kg ha⁻¹) was achieved with 100&#xa0;kg N ha⁻¹ under NT, about 62% higher than CT. No-till also improved water use efficiency, protein content, nitrogen use efficiency, stomatal conductance, chlorophyll content, and proline accumulation compared with conventional tillage. Overall, no-till combined with adequate nitrogen fertilization enhanced wheat performance under contrasting seasonal conditions, with the best responses obtained at 150&#xa0;kg N ha⁻¹ in the wet year and 100&#xa0;kg N ha⁻¹ in the dry year.</p>

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Tillage and Nitrogen Management Effects on Wheat Productivity Under Moroccan Conditions

  • 期刊论文

  • 发表日期：

    2026年4月9日

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  • Wafae Sellami,
  • Khalid Daoui,
  • Rachid Moussadek,
  • Mohammed Ibriz,
  • Abderrazzak Bendidi

摘要

The challenges posed by climate change and resource scarcity necessitate the development of innovative strategies for sustainable wheat production in semi-arid regions. This study evaluated the interaction between tillage systems and nitrogen (N) fertilization on bread wheat (Triticum aestivum L.) performance in Morocco’s Saïs region. A field experiment was conducted over two growing seasons using a randomized complete block design with a split-plot arrangement. The plots comprised tillage systems (conventional tillage, no-till), while the subplots contained four nitrogen rates (0, 50, 100, 150 kg N ha⁻¹). In the first year (wet season), no-till (NT) with 150 kg N ha⁻¹ produced the highest grain yield (4275 kg ha⁻¹), approximately 7% greater than conventional tillage (CT). In the second year (dry season), the maximum yield (2274 kg ha⁻¹) was achieved with 100 kg N ha⁻¹ under NT, about 62% higher than CT. No-till also improved water use efficiency, protein content, nitrogen use efficiency, stomatal conductance, chlorophyll content, and proline accumulation compared with conventional tillage. Overall, no-till combined with adequate nitrogen fertilization enhanced wheat performance under contrasting seasonal conditions, with the best responses obtained at 150 kg N ha⁻¹ in the wet year and 100 kg N ha⁻¹ in the dry year.