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<p>Zinc and phosphorus have an antagonistic effect on each other and hinder each other’s availability to the plant and later during human consumption. To address this, our study examined the impact of P and Zn on wheat grain Zn &amp; P content, grain protein and grain phytic acid content. The experimental design was split plot with three replications. The main plots consisted of three levels of phosphorus, namely P1 (62.5&#xa0;kg/ha soil application of P), P2 (75&#xa0;kg/ha soil application of P), P3 (50&#xa0;kg/ha soil application of P) which were subsequently splitted into six subplots: Z<sub>1</sub> (no application of zinc (Control)), Z<sub>2</sub> (62.5&#xa0;kg/ha soil application of Zn), Z<sub>3</sub> (1 Foliar Spray (0.5% of ZnSO<sub>4</sub>) b/w anthesis and early grain development), Z<sub>4</sub> (2 Foliar Spray (0.5% of ZnSO<sub>4</sub>) b/w anthesis and early grain development), Z<sub>5</sub> (31.25&#xa0;kg/ha soil application of Zn + 1 Spray (0.5% of ZnSO<sub>4</sub>) b/w anthesis and early grain development) and Z<sub>6</sub> (31.25&#xa0;kg/ha soil application of Zn + 2 Spray (0.5% of ZnSO<sub>4</sub>) b/w anthesis and early grain development). For various levels of phosphorus, higher grain yield (50.6 q/ha) was recorded for P<sub>1</sub>, higher grain Zn content (40.8&#xa0;mg/kg) was recorded for P<sub>3</sub>, while grain P content (1.3%), grain protein content (10.9%), grain phytic acid content (0.8%) and grain phytate/Zn ratio (23.5) was higher for P<sub>2</sub>. Among different zinc application methods, maximum grain yield (52.6 q/ha) was recorded under Z<sub>6</sub>, higher grain P content (1.4%) observed under Zn<sub>1</sub>, higher grain Zn content (41.3&#xa0;mg/kg), higher grain protein content (11.0%), lower grain phytic acid content (0.7%) and lower grain phytate/Zn ratio (17.6) were observed under Zn<sub>6</sub>. The unique relationship between Zn–P at molecular levels leads to underlying results. Elevated P levels hinder Zn uptake due to its precipitation in soil and inside plants, it binds Zn in phytates complexes limiting transport and assimilation. Hence, balanced nutrition played a crucial role in achieving higher yield while maintaining good nutrition levels of the grains.</p>

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Effect of various modes of zinc application and different phosphorus doses on grain quality of wheat (Triticum aestivum L.)

  • 期刊论文

  • 发表日期：

    2026年3月27日

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  • Simarjot Singh,
  • Ritu Kumari,
  • Kanwaljit Singh

摘要

Zinc and phosphorus have an antagonistic effect on each other and hinder each other’s availability to the plant and later during human consumption. To address this, our study examined the impact of P and Zn on wheat grain Zn & P content, grain protein and grain phytic acid content. The experimental design was split plot with three replications. The main plots consisted of three levels of phosphorus, namely P1 (62.5 kg/ha soil application of P), P2 (75 kg/ha soil application of P), P3 (50 kg/ha soil application of P) which were subsequently splitted into six subplots: Z1 (no application of zinc (Control)), Z2 (62.5 kg/ha soil application of Zn), Z3 (1 Foliar Spray (0.5% of ZnSO4) b/w anthesis and early grain development), Z4 (2 Foliar Spray (0.5% of ZnSO4) b/w anthesis and early grain development), Z5 (31.25 kg/ha soil application of Zn + 1 Spray (0.5% of ZnSO4) b/w anthesis and early grain development) and Z6 (31.25 kg/ha soil application of Zn + 2 Spray (0.5% of ZnSO4) b/w anthesis and early grain development). For various levels of phosphorus, higher grain yield (50.6 q/ha) was recorded for P1, higher grain Zn content (40.8 mg/kg) was recorded for P3, while grain P content (1.3%), grain protein content (10.9%), grain phytic acid content (0.8%) and grain phytate/Zn ratio (23.5) was higher for P2. Among different zinc application methods, maximum grain yield (52.6 q/ha) was recorded under Z6, higher grain P content (1.4%) observed under Zn1, higher grain Zn content (41.3 mg/kg), higher grain protein content (11.0%), lower grain phytic acid content (0.7%) and lower grain phytate/Zn ratio (17.6) were observed under Zn6. The unique relationship between Zn–P at molecular levels leads to underlying results. Elevated P levels hinder Zn uptake due to its precipitation in soil and inside plants, it binds Zn in phytates complexes limiting transport and assimilation. Hence, balanced nutrition played a crucial role in achieving higher yield while maintaining good nutrition levels of the grains.