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Effect of Nano-Fertilizers on Alfalfa Plants Grown under Different Salt Stresses in Hydroponic System

Author

Listed:
  • Rania M. El-Shal

    (Soil Science and Water Department, Faculty of Agriculture, Tanta University, Tanta 31527, Egypt)

  • Ahmed H. El-Naggar

    (Department of Soil Sciences, Faculty of Agriculture, Ain Shams University, Cairo 11241, Egypt
    Sustainable Natural Resources Management Section, International Centre for Biosaline Agriculture (ICBA), Dubai 14660, United Arab Emirates)

  • Talaat R. El-Beshbeshy

    (Soil Science and Water Department, Faculty of Agriculture, Tanta University, Tanta 31527, Egypt)

  • Esawy K. Mahmoud

    (Soil Science and Water Department, Faculty of Agriculture, Tanta University, Tanta 31527, Egypt)

  • Nasser I. Abd El-Kader

    (Soil Science and Water Department, Faculty of Agriculture, Tanta University, Tanta 31527, Egypt)

  • Ali M. Missaui

    (Department Crop and Soil Sciences and Center for Applied Isotope Studies, University of Georgia, Athens, GA 30602, USA)

  • Daolin Du

    (Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Adel M. Ghoneim

    (Field Crops Research Institute, Agricultural Research Center, Giza 12619, Egypt)

  • Mahmoud S. El-Sharkawy

    (Soil Science and Water Department, Faculty of Agriculture, Tanta University, Tanta 31527, Egypt)

Abstract

In light of climate change and the ever-increasing population, salt stress has become a critical issue for agriculture and food security. The use of nano-fertilizers in agriculture is a promising application for salt stress management. Therefore, we investigated a hydroponic experiment to evaluate the effect of different nano-fertilizers: macro-nutrient (K 2 SO 4 ) and micro-nutrient (ZnO and SiO 2 ) on two alfalfa ( Medicago sativa L.) genotypes: (Susceptible: Bulldog 505, and tolerant: Mesa-Sirsa) grown with different salt concentrations (6 and10 dS m −1 ) in split-split design. The results demonstrated that nano-K 2 SO 4 enhanced shoot dry weight, plant height, number of flowers, number of tillers, root length, root fresh weight, and root dry weight under both salt levels. Addition of nano-K 2 SO 4 enhanced plant relative water contents and electrolyte leakage with both genotypes under different salt levels. Nano-SiO 2 promoted proline and SOD production with high salinity with values of (0.78 and 1.06 µmol g −1 FW) and 191.15 and 143.46 U. g −1 FW under Bulldog and Mesa-Sirsa, respectively. The application of nano-ZnO promoted plant micro-elements under 6 dS m −1 with both genotypes. The incorporation of nano-fertilizers into hydroponic systems provides a promising strategy, especially in regions with low water quality.

Suggested Citation

  • Rania M. El-Shal & Ahmed H. El-Naggar & Talaat R. El-Beshbeshy & Esawy K. Mahmoud & Nasser I. Abd El-Kader & Ali M. Missaui & Daolin Du & Adel M. Ghoneim & Mahmoud S. El-Sharkawy, 2022. "Effect of Nano-Fertilizers on Alfalfa Plants Grown under Different Salt Stresses in Hydroponic System," Agriculture, MDPI, vol. 12(8), pages 1-19, July.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:8:p:1113-:d:874229
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    References listed on IDEAS

    as
    1. Jalali, Vahidreza & Asadi Kapourchal, Safoora & Homaee, Mehdi, 2017. "Evaluating performance of macroscopic water uptake models at productive growth stages of durum wheat under saline conditions," Agricultural Water Management, Elsevier, vol. 180(PA), pages 13-21.
    2. Cao, Yune & Gao, Yanming & Li, Jianshe & Tian, Yongqiang, 2019. "Straw composts, gypsum and their mixtures enhance tomato yields under continuous saline water irrigation," Agricultural Water Management, Elsevier, vol. 223(C), pages 1-1.
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