Relation between crop stand and yield in white ginseng cultivation area
1987
Park, H. | Lee, M.G. | Byen, J.S. | Lee, J.R. (Korea Ginseng and Tobacco Research Inst., Taejon (Korea R.))
Relationships among root yield, planting density (PD), missing plant rate (MR), leaf area index (LAI), leaf area per plant (LAP), root weight (RW), number of harvested root (RN) and leaf fall plant rate (LFP) were investigated by survey of white ginseng plantations in Pungi and Geumsan area. In Geumsan PD was about twice more than in Pungi but yield was low with high rates of MR and LFP. Yield depended on RN in high PD cultivation while on RW in low PD. The effect of MR on yield was prominent in high PD cultivation. PD showed insignificant negative correlation with yield and no clear relation with MR. RN depended on PD and was especially limited by MR. Yield depended on LAI at harvest time and especially at maximum growth time. LAI was not different between high and low PD. LAP depended highly on RW and this fact seems to be the very0825reason that LAI could not increase with the increase of PD. All fields showed the suboptimum L
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