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KMID : 1098420210290040273
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Korean Journal of Medicinal Crop Science
2021 Volume.29 No. 4 p.273 ~ p.281
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Establishment of Soil Suitability and Assessment of Wet Injury in Astragalus membranaceus (Fisch.) Bunge by Soil Properties
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Lee Eun-Song
Hyeon Geun-Soo
Kim Yong-Il
Jang Jae-Ki
Ahn Tae-Jin
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Abstract
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Background: Astragalus membranaceus (Fisch.) Bunge is a crop whose underground part has medicinal uses. This study aimed to establish soil suitability for its cultivation and assess wet injury in A. membranaceus according to the soil properties.
Methods and Results: The soil texture of the plow layer, drainage grade, soil slope (%), the height and width of the ridge (㎝) were measured at 26 cultivation locations of an A. membranaceus farmhouse located in Jecheon, Korea with a Good Agricultural Practices (GAP) cultivation contract.
The soil moisture content (%), electrical conductivity (ds/m), and temperature (℃) were surveyed, and the wet injury rate (%) was expressed by the percentage of damaged population in the overall population. The results showed that A. membranaceus cultivated in sandy loam soil was less likely to be damaged than in clay loam. Moreover, the wet injury rate was low under well drained conditions. Among the soil slopes, the damage was the least in grade B slopes (2% - 7%). In addition, when drainage occurred smoothly along the drainage channel and mulching cultivation was conducted, the wet injury decreased.
Conclusions: To establish soil suitability for reducing the wet injury, it is important to cultivate this crop on sandy loam soil with suitble drainage grade and drainage channel in locations with a grade B slope (2% -7%) and to increase the height of the ridge to more than 30 ㎝.
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KEYWORD
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Astragalus membranaceus (Fisch.) Bunge, Cultivation, Soil Phyisical Environment, Soil Suitability, Wet Injury
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