Comparison of the Chemical Properties of Soil and the Main Components of the Southern Ecotype Garlic Cultivar Cultivated in the Volcanic or Nonvolcanic Ash Soil of Jeju Island

Garlic cultivated in volcanic ash soil on Jeju Island exhibits distinct chemical properties compared to nonvolcanic ash soil, with higher electrical conductivity and available sulfur content in volcanic soils. This study found that the southern ecotype garlic cultivar 'Namdo' grown in volcanic ash soil had elevated levels of soluble solids and allicin, while 'Daeseo' showed increased reducing sugar content. Nonvolcanic ash soil for 'Namdo' garlic was characterized by higher available phosphorus. The research compared soil chemical properties and garlic components across both soil types, revealing that potassium was the predominant macronutrient in Jeju-grown garlic, followed by sulfur, magnesium, calcium, and sodium. Micronutrients included iron, zinc, manganese, and copper. These findings provide valuable insights for high-quality garlic production, particularly for farmers targeting premium garlic cultivation.

Kim, J.-S., & Ra, J. H. (2016). Comparison of the Chemical Properties of Soil and the Main Components of the Southern Ecotype Garlic Cultivar Cultivated in the Volcanic or Nonvolcanic Ash Soil of Jeju Island. Horticultural Science and Technology, 34(4), 549–556. https://doi.org/10.12972/kjhst.20160056