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李容秀 中央大學校 基礎科學硏究所 1989 基礎科學硏究所 論文集 Vol.3 No.-
This study had been carried out during june 1988 and june 1989 when 2.767 trees of Diospyros kaki cultivars were investigated. Fruit setted tree rate persontage was 63.3 of the 2.762 trees but productivity was reached to 37.429 Kg(240.436 pieces). This result was 70 times as much as previours year 1987. Consequently, investigated environmental conditions of this year were affording it's result as well as additional technical supports. It is pity to find out that which Factors were leading es not clear to decide which leave us for further study of it. Certain Environmental condition in Altitudinal boundary fo 200 meter of north side of Jeju Island was Excellently favoroble for teh test year 1988. A. NO below than 0℃ date was found. B. No Hurricane date was found in Jeju island Hurricane preavialing month is September. C. No detactible windy days were on flowering month of June. D. Soil condition was not in abnormallity stated as follows : pH : 5.75 O.M. : 3.75 P₂??: 11.5ppm K : 0.305(Me/100g) C.E.C : 15.6(Me/100g) Fe : 1.61% Mn : 163.5ppm Zn : 0.49ppm Cu : 0.275ppm Respective solubility in 0.1N Hcl solution
A Study on the Variation of Horticultural Vegetation in Ecuador
Rhee,Yong Soo 中央大學校 食糧資源硏究所 1992 食糧資源硏究所 論文集 Vol.4 No.1
This study had been carried out from May to August, 1992, at Tumbaco Fruit Research Station of Ecuador and Ansung, Korea as well. Malus pumila species was used as test material which were six year old apple trees. No significant differences were detected from leaf area sample taken each side of apple trees in ecuador. That is, each side of tree, northern, southern, eastern or western branching was meaningless to the leaf area sample. But in case of Korea, the results were quite the opposite of that of Ecuador showing difference north and east and also east and west. Least leaf area was seen northern set ones.