Effect of growth light and planting density on yield and quality of Panax ginseng C.A.Meyer
1987
Park, H. | Yoon, J.H. | Byen, J.S. | Cho, B.G. (Korea Ginseng and Tobacco Research Inst., Taejon (Korea R.))
Effect of growth light intensity (5% and 20%) and planting density (40, 56, 90/3.3sqm on yield and red ginseng quality was investigated in a sandy loam field of ginseng plantation. High growth light intensity had no effect on yield and quality but decreased stem length, leaf area and chlorophyll content and increased specific leaf weight. The optimum planting density was 64/3.3sqm for both yield and Heaven + Earth grade(HE grade) of red ginseng. HE-shape ginseng rate showed significant positive correlation (P=0.01) with HE grade rate
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