Greenhouse Plant Production Journal
Quarterly

Effects of Different Nitrogen Sources and Sodium Bicarbonate on Growth and Nutrient Uptake in Two Garlic Genotypes: A Hydroponic Study

Document Type : Original Article

Authors

Hamid Reza Soufi 1
Mahdiyeh Shojaee Khabisie 1
Dariush Ramezan 2
Najme Zeinali Pour 3
Hamid Zakeri marvast 4

1 Department of Horticultural Sciences, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran

2 Horticulture Science, Department of Horticulture and landscaping, Faculty of Agriculture, University of Zabol, Iran

3 Department of Horticultural Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, P.O. Box: 76169- 133, Kerman, Iran.

4 Department of Horticulture Science, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran

https://doi.org/10.61186/gppj.2.1.44
Abstract
Soil alkalinity is a major constraint to agricultural production worldwide, as only a limited number of plant species . Nitrogen sources significantly influence the pH of the nutrient solution. This study was conducted as a factorial experiment based on a completely randomized design with three factors: sodium bicarbonate at three concentrations (0, 10, and 20 mM), nitrogen source at three levels (ammonium sulfate, ammonium nitrate and calcium nitrate at a concentration of 5 mM), and two garlic genotypes (white and purple), with three replications in a hydroponic greenhouse at the Faculty of Agriculture, Vali-e-Asr University of Rafsanjan. Also, the results showed that increasing sodium bicarbonate concentration led to a decrease in morphological parameters. Manganese and sodium concentrations increased with higher sodium bicarbonate levels, particularly under calcium nitrate and ammonium sulfate treatments. Ammonium nitrate also increased iron and copper concentrations. Additionally, ammonium sulfate and calcium nitrate improved nutrient uptake. Based on the findings, the white garlic genotype demonstrated superior performance in most measured traits compared to the purple genotype. The interaction between nitrogen form and nutrient solution pH was shown to influence nutrient uptake efficiency, stress tolerance, and overall plant performance. These findings highlight the critical role of targeted nitrogen management in alleviating the negative impacts of alkaline stress on garlic cultivation. By addressing nutrient imbalances and promoting better growth performance, appropriate nitrogen source strategies can enhance the resilience and productivity of garlic genotypes under hydroponic conditions, thereby supporting more efficient and sustainable agricultural practices.

Keywords

Ammonium
Garlic
Hydroponics
Nitrogen Sources
Sodium Bicarbonate
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  • Receive Date 03 March 2025
  • Revise Date 20 March 2025
  • Accept Date 31 March 2025
  • First Publish Date 31 March 2025
  • Publish Date 01 March 2025

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