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<p>Zinc deficiency is major constraint in lentil (<i>Lens culinaris</i> Medik.) production, affecting crop yields and nutritional quality. This study aimed to evaluate the efficacy of diverse zinc application strategies on productivity, seed quality, profitability, and zinc use efficiency of diverse lentil genotypes. Factorial experiment was conducted in pot and field settings to evaluate 18 treatment combinations, comprised three lentil genotypes (BARI Masur-3, BARI Masur-5, BARI Masur-8) and six zinc application strategies (soil, foliar, seed priming and their combinations). Treatment T4 (50% soil application + 50% foliar spray of ZnSO4​⋅H2​O) produced highest seed yields (1716 kg ha− 1 in pot and 1693 kg ha− 1 in field). This treatment maximized plant height, pod count, seed weight and protein content (25.2% in pot; 24.5% in field). T4 exhibited superior nutrient acquisition, uptake and highest zinc use efficiency, with an agronomic efficiency (AE) of 56.5 kg kg− 1 (pot) and 56.6 kg kg− 1 (field) and apparent zinc recovery (AZnR) reached 1.59% (pot) and 1.39% (field). Among genotypes, BARI Masur-8 exhibited the best performance in growth, quality, and yield. BARI Masur-5 achieved highest seed zinc bio-fortification (14.9 mg kg− 1) and superior zinc use efficiency with AE of 74.9 kg kg− 1 in pot and 75.0 kg kg− 1 in field and AZnR (1.70% in pot and 1.33% in field). T4 treatment is economically viable with benefit-cost ratio of 1.88. Applying 50% ZnSO<sub>4</sub>⋅H<sub>2</sub>O to soil and 50% via foliar spray effectively boost lentil productivity, quality and profitability. While BARI Masur-8 produces highest yield, BARI Masur-5 is superior for zinc bio-fortification and use efficiency.</p>

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Agronomic Zinc Bio-fortification Enhances Productivity, Quality, and Nutrient Use Efficiency in Lentil Genotypes

  • 期刊论文

  • 发表日期：

    2026年5月19日

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  • Shamima Aktar,
  • Md. Ruhul Amin,
  • Biplob Kumar Saha,
  • Md. Kafil Uddin,
  • Md. Abdul Quddus,
  • Istiak Ahmed,
  • Md. Shihab Uddine Khan,
  • Md. Abdus Sattar,
  • Rummana Islam,
  • Md. Akhter Hossain Chowdhury

摘要

Zinc deficiency is major constraint in lentil (Lens culinaris Medik.) production, affecting crop yields and nutritional quality. This study aimed to evaluate the efficacy of diverse zinc application strategies on productivity, seed quality, profitability, and zinc use efficiency of diverse lentil genotypes. Factorial experiment was conducted in pot and field settings to evaluate 18 treatment combinations, comprised three lentil genotypes (BARI Masur-3, BARI Masur-5, BARI Masur-8) and six zinc application strategies (soil, foliar, seed priming and their combinations). Treatment T4 (50% soil application + 50% foliar spray of ZnSO4​⋅H2​O) produced highest seed yields (1716 kg ha− 1 in pot and 1693 kg ha− 1 in field). This treatment maximized plant height, pod count, seed weight and protein content (25.2% in pot; 24.5% in field). T4 exhibited superior nutrient acquisition, uptake and highest zinc use efficiency, with an agronomic efficiency (AE) of 56.5 kg kg− 1 (pot) and 56.6 kg kg− 1 (field) and apparent zinc recovery (AZnR) reached 1.59% (pot) and 1.39% (field). Among genotypes, BARI Masur-8 exhibited the best performance in growth, quality, and yield. BARI Masur-5 achieved highest seed zinc bio-fortification (14.9 mg kg− 1) and superior zinc use efficiency with AE of 74.9 kg kg− 1 in pot and 75.0 kg kg− 1 in field and AZnR (1.70% in pot and 1.33% in field). T4 treatment is economically viable with benefit-cost ratio of 1.88. Applying 50% ZnSO4⋅H2O to soil and 50% via foliar spray effectively boost lentil productivity, quality and profitability. While BARI Masur-8 produces highest yield, BARI Masur-5 is superior for zinc bio-fortification and use efficiency.