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http://dx.doi.org/10.5338/KJEA.2018.37.2.11

The Selection of Proper Resource and Change of Salinity in Helianthus tuberosus L. Cultivated in Saemangeum Reclaimed Tidal Land  

Oh, Yang-Yeol (Division of Crop Foundation, National Institute of Crop Science, Rural Development Administration)
Lee, Jung-Tae (Division of Crop Foundation, National Institute of Crop Science, Rural Development Administration)
Hong, Ha-Cheol (Division of Crop Post-harvest Technology Research, Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Kim, Jae-Hyun (Division of Technology Transter, National Institute of Crop Science, Rural Development Administration)
Seo, Woo-Duck (Division of Crop Foundation, National Institute of Crop Science, Rural Development Administration)
Kim, Sun (Division of Crop Foundation, National Institute of Crop Science, Rural Development Administration)
Ryu, Jin-Hee (Division of Crop Foundation, National Institute of Crop Science, Rural Development Administration)
Lee, Su-Hwan (Division of Crop Foundation, National Institute of Crop Science, Rural Development Administration)
Kim, Young-Joo (Department of cadastre & Civil engineering, Vision College of Jeonju)
Publication Information
Korean Journal of Environmental Agriculture / v.37, no.2, 2018 , pp. 73-78 More about this Journal
Abstract
BACKGROUND: Soil salinity of reclaimed tidal land in Korea is highly important factor. High salinity is harmful to crop productivity. Jerusalem artichoke (Helianthus tuberosus L.) is known to be salt-tolerant and has high adaptability to diverse pedo-climatic conditions. The objective of this study was to assess the changes of soil properties and crop productivity according to salt concentration in the reclaimed tidal lands. METHODS AND RESULTS: Experimental sites were selected at Saemangeum ($35^{\circ}46^{\prime}N$, $126^{\circ}37^{\prime}E$) reclaimed tidal land, and their dominant soil series were Munpo (coarse loamy, mixed, non-acid, mesic, typic Fluvaquents). H. tuberosus L were collected from 12 locations across Korea. Tubers were planted at $75{\times}25cm$ with EC 2 to $7dS\;m^{-1}$. Soil samples were periodically collected from both 0~20 cm and 20~40 cm depths of each site. Soil salinity and soil moisture contents were varied depending on weather conditions. Soil electrical conductivity varied from 1.0 to $5.9dS\;m^{-1}$, and soil moisture contents varied from 9.2 to 28.7%. The white-colored tubers of H. tuberosus L. collected from 'Yeongwol-gun' exhibited the highest height (207 cm), followed by the white-colored tubers of H. tuberosus L. collected from 'Iksan-si'(202 cm). The white-colored tubers of H. tuberosus L. collected from 'GyeongJu-si' showed the highest yield (549 kg/10a). The purple-colored tubers of H. tuberosus L. collected from 'Yeongwol-gun' showed the highest yield (615 kg/10a). CONCLUSION: Our results indicate that the plant height and tuber yield did not appear to be correlated. Considering yield and inulin content, the GyeongJu-si seemed to be suitable as the white-colored tubers of H. tuberosus L. and the Yeongwol-gun seemed to be suitable as the purple-colored tubers of H. tuberosus L. in the reclaimed tidal lands. However, it is necessary to consider the relationship between the inulin content and the yield.
Keywords
Helianthus tuberosus L; Inulin content; Soil EC; Soil moisuture; Plant height;
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Times Cited By KSCI : 1  (Citation Analysis)
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