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<p>Nectarine is an economically important temperate fruit crop, and its productivity is mainly dependent upon effective nutrient management. A field experiment was conducted to evaluate the effect of nano iron on growth and production of nectarine cv. ‘Silver King’ during 2022 and 2023. The experiment was laid out in randomized block design (RBD) comprised of six treatments, viz. T<sub>1</sub>—recommended dose of iron (foliar application of 0.3% FeSO<sub>4</sub>), T<sub>2</sub>—100% application of nano iron (NFe), T<sub>3</sub>—80% application of nano iron (NFe) + 20% application of chelated iron (ChFe), T<sub>4</sub>—60% application of nano iron (NFe) + 40% application of chelated iron (ChFe), T<sub>5</sub>—40% application of nano iron (NFe) + 60% application of chelated iron (ChFe), T<sub>6</sub>—control with four replications. The results revealed that 100% application of nano iron (T<sub>2</sub>) led to significantly (<i>P</i> &lt; 0.05) enhanced vegetative growth, encompassing annual extension growth (49.03 and 53.30 cm) and tree height (29.90 and 30.83 cm). The same treatment also improved fruit yield (25.90 kg/tree and 27.69 kg/tree) and quality indicators such as total soluble solids (TSS; 12.47°Brix [°B] and 12.71°B), titratable acidity (0.71% and 0.68%) and the TSS/acidity ratio (17.32 and 18.74) during both years. Economic analysis further indicated maximum net returns and benefit–cost ratio (9.52) under 100% nano-iron application. The enhanced performance may be attributed to improved nutrient absorption, translocation and utilization efficiency of nano-sized iron particles. Therefore, foliar application of nano iron can be considered an effective and sustainable approach for improving productivity and fruit quality of nectarine under mid-hill conditions.</p>

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Effect of Nano Iron Application on Growth and Yield Parameters of Nectarine in the Mid-Hill Region of Himachal Pradesh

  • 期刊论文

  • 发表日期：

    2026年5月6日

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  • Suresh Kumar,
  • Manohar Lal Verma,
  • Gopal Singh,
  • Mukesh Kumar,
  • Yashpal Singh Bisht

摘要

Nectarine is an economically important temperate fruit crop, and its productivity is mainly dependent upon effective nutrient management. A field experiment was conducted to evaluate the effect of nano iron on growth and production of nectarine cv. ‘Silver King’ during 2022 and 2023. The experiment was laid out in randomized block design (RBD) comprised of six treatments, viz. T1—recommended dose of iron (foliar application of 0.3% FeSO4), T2—100% application of nano iron (NFe), T3—80% application of nano iron (NFe) + 20% application of chelated iron (ChFe), T4—60% application of nano iron (NFe) + 40% application of chelated iron (ChFe), T5—40% application of nano iron (NFe) + 60% application of chelated iron (ChFe), T6—control with four replications. The results revealed that 100% application of nano iron (T2) led to significantly (P < 0.05) enhanced vegetative growth, encompassing annual extension growth (49.03 and 53.30 cm) and tree height (29.90 and 30.83 cm). The same treatment also improved fruit yield (25.90 kg/tree and 27.69 kg/tree) and quality indicators such as total soluble solids (TSS; 12.47°Brix [°B] and 12.71°B), titratable acidity (0.71% and 0.68%) and the TSS/acidity ratio (17.32 and 18.74) during both years. Economic analysis further indicated maximum net returns and benefit–cost ratio (9.52) under 100% nano-iron application. The enhanced performance may be attributed to improved nutrient absorption, translocation and utilization efficiency of nano-sized iron particles. Therefore, foliar application of nano iron can be considered an effective and sustainable approach for improving productivity and fruit quality of nectarine under mid-hill conditions.