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Evaluation of Companion Crop for Conservation of Soil in Highland Cultivativation of Chinese Cabbage  

Kim, Ki-Deog (National Institute of Highland Agriculture, RDA)
Ahn, Jae-Hoon (National Institute of Highland Agriculture, RDA)
Lee, Jeong-Tae (National Institute of Highland Agriculture, RDA)
Hong, Soon-Choon (National Institute of Highland Agriculture, RDA)
Hwang, Seon-Woong (National Institute of Agriculture Science & Technology, RDA)
Kim, Chung-Guk (National Institute of Corp Science, RDA)
Publication Information
Journal of Bio-Environment Control / v.17, no.1, 2008 , pp. 1-8 More about this Journal
Abstract
Four cover plants such as Phlox subulata, Glechoma hederacea var. longituba, Sedum middendorffianum and Saxifraga laciniata were evaluated to investigate the effect of companion planting on reducing soil erosion in Chinese cabbage cultivated highland. The experiment was conducted using lysimeters of $5\;m{\times}2\;m$ (length$\times$width) with 5, 15 and 30% slopes. Companion plants except Sedum middendorffianum did not interface with growth of Chinese cabbage Glechoma hederacea var. longituba and Sedum middendorffianum grew faster than Phlox subulata and Saxifraga laciniata in the early growth stage suer transplanting, resulting in fast ground covering, but the ground covering by Phlox subulata and Saxifraga laciniata was delayed because growth suppression by high air temperature during summer season. Soil erosion became severe as increasing degree of slope. Assessments of the four cover plants were conducted in relation to soil conservation characteristic of scenery, endurance to the environment stress, plant growth and weed suppression. From the assessments, Phlox subulata was superior to other intercropping crops tested for reducing soil erosion in highland cultivation of Chinese cabbage.
Keywords
chinese cabbage; companion planting; cover crop; highland; soil conservation;
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