Growth and Mineral Content of Southern-type Garlic Grown in Volcanic and Non-volcanic Ash Soils on Jeju Island

Abstract

The growth and mineral content of garlic (Allium sativum L.) grown in different types of soil on Jeju Island, including black volcanic ash soil (BS), very dark-brown volcanic ash soil (VDBS), and dark-brown non-volcanic ash soil (DBS), were investigated to evaluate soil-crop system management, which is required to increase crop quality and productivity. Examining the soil physicochemical properties, the organic matter and total nitrogen contents were higher, while the available P2O5 and Mg contents were lower, in the volcanic ash soils than in the non-volcanic ash soil. During the growing stage, plant height and pseudo stem diameter were greater in garlic grown in VDBS or DBS compared to BS. At harvest time, bulb diameter and length, the number of cloves per bulb, and clove weight were greater in VDBS or DBS than in BS. In addition, in BS, shoot growth, bulb development, and clove differentiation were abnormal. The total N, P, K, Ca, Fe, Mn, Zn, and Cu contents in the bulbs were also higher in garlic grown in DBS or VDBS compared to BS. Specifically, the K, Mn, Zn, and Cu contents increased significantly in garlic grown in DBS. These results suggest that soil physicochemical properties affected the growth and development of garlic, and that the cloves should be grown in VDBS or DBS to increase the productivity of high-quality garlic with large, mineral-rich bulbs.

Analysis of Predictions of Garlic Bulb Weight using LASSO Regression Model

“…Representative studies include analyses of the effects of irradiance on garlic growth (Oh et al, 2017;Atif et al, 2020), the effects of an increase in growing temperature on garlic growth (Kamenetsky et al, 2004;Portela and Cavagnaro, 2004;Oh et al, 2019), the effects of soil properties and soil management on garlic growth (Diriba-Shiferaw, 2016;Oh and Koh, 2020), the effects of diseases on garlic growth and bulb development (Lee et al, 2022), and the effects of high-temperature and humid environmental conditions on the growth and quantity of garlic (Rahim and Fordham, 1997). However, existing analyses explain the growth and development of garlic based on data obtained through controlled experiments in limited spaces.…”

Improving Photosynthesis, Productivity, and the Mineral Content of Chinese Cabbage Grown on Very Dark-Brown Volcanic Ash Soil

“…농암갈색 화산회토양에서의 작물 생산성은 같은 십자화과(Brassicaceae) 식물인 무(R. sativus L. var. hortensis Backer) 와 제주지역의 주요 월동작물인 마늘(A. sativum L.)에서도 지상부와 지하부의 생체중, 건물중, 크기 등에 있어서 모두 높고 외 관상 상품성도 좋은 것으로 보고된 바 있다(Oh et al, 2019(Oh et al, , 2020.Fig. 2에서 살펴본 바와 같이 흑색 화산회토양에서 재배된 배추의 잎에서 F o 는 높고 F m 이 낮은 특성을 보여 다른 토양에 서와는 달리 배추가 어느 정도 스트레스를 받는 것으로 보인다.…”