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刈取時期가 移秧前 靑刈옥수수의 生育收量, 一成粗成分 및 土壤의 化學的 性質에 미치는 影響
金基元,姜奉泰 진주산업대학교 1978 論文集 Vol.16 No.-
To investigate the reasonable utilization method of padly field in southern disirt this experiment was carried out to detect the effect of cutting stage on the growth, yield and chemical composition of green crop cuetivated on the unused paddy field and on the chemical composition of soil investigated. The results obtained weres follow : 1. Grass height of green yellow corn cut on June 20 was 231,29㎝ and highest among the treatments. grass hight of green yellow corn cut on June 1 was 174.77㎝ and shortest among the treatments. In the cutting stage, sigrificant differences were found out between treatments (P<0.05). However there were no differences between grass height of green yellow corn cut on June 15 and June 20. 2. In the ratio of leaf to stem there were a generally higher ratio of stem than leaf. However treatments cutting on June 1 and June 20 have a slightly less leaf than treatments cutting on other cutting stage. 3. Treatment cutting on June 20 produced the highest yield (8969.33㎏ per 10a) among treatments. Treatment cutting on June 1 produced the lowest yield (7296.67㎏ per 10a) among treatments. There were a significant differences (<0.05) between cutting stage in the green yield. An increasing yield was produced as the cutting stage was later. 4. DM yield was slightly decneased because of a short growth period. However DM yield was increased as the maturity was prolonged. 5. In the chemical composition content of crude protein and crude fiber in the treatment cutting on June lwas 8.24% and 23.01%, respectively. content of crude protein and crude fiber in the treatment cutting on June 20 was 2.79% and 32.32%, respectively. crude protain content was decreased and crude fiber content was increased as the cutting stage later. 6. Content of pH, organic matter, phosphorus, calcium and magnesium in soil investigated by the cutting stage was greatly higher than average Values of soil of all country field. Therefore eccording to this experiment it was considered that there were no effects on the cultivation of rice by cultivation of green yellow corn in rice field before transplanting.
김기원,금채 忠南大學校 1970 論文集 Vol.9 No.-
The conductivity of ZnO is lowrered by the incorporation of monovalent Li, in Contrast to the effect of substitutional addition of trivalent in. In the ZnO Single Crystal, Li first becomes a dono r by taking up interstitial positions in ZnO lattice and the donor energy band gap is 0.013 eV, second becomes an acceptor energy band gap is 2.6 eV. The mobility up to 80°k is evaluated thats maximum 80㎠/volt.sec and the mechanism of the decrease in the mobility is attributed to ionized impurity atom scattering, while the one in high temperature is caused by the lattice phonon mode.
金基元,金是璟 진주산업대학교 1981 論文集 Vol.19 No.-
This experiment was conducted to find out the chemical composition of leaf, chief producing district, characteristics and distribution of Korean tea plant. 1. It was confirmed that Korean tea plant is situated in long. 126°10-127°20E. and lat. 34°30'(Jejudo included, 33°30')-30°30'N. Chief producing district of tea was situated in lat. 34°30'-35°30'N. and long. 126°10'-128°10'E. of the south area of Mt. Jiry and the coastal area of Chunnam. 2. The diluvium made of gneiss and granite of the Mesozoic the Archeozoic is sandy loan, PH 3.0-5.0 and PH 5.0-5.5 in the chief producing district. 3. Tea fields prepared at high sloping degree were inconvenient at management-working. growth and development of that was also inferior. 4. In the weather conditions, annual air temperature averaged was 13℃ and over. It was confirmed that mountain and field of Gyeongsang Nam Do and Chun La Nam-Bug Do (annual rainfalldepth: 1300mm-1500mm) fitted tea culture and tea leaf was superior. 5. Natufal environment of chief producing district was very similar to international that and particularly fitted green tea culture. 6. There were differences among the districts surveied in the formal charactiristics of Korean tea plant. 7. Chief producing district of tea was kept arecord with the place of 24 in the authentic record of Sejong (Gyeong Nam 8, Chun Nam 14 and Chun Buk 2) and 33 in the Dong Kug Yeo Ji Seung Lam, but the places surveied in this experiment were those of 60. Those of tea producing district consisted of 3 districts of Gyeong Nam, a city and 10 districts of Chun Nam and a district of Chun Buk. 8. The chemical composition of Korean tea plant was differences among the districts surveied. 9. Korean tea leaf was composed of 20 species of free amino acids. The green tea of Mudeung area contained more amino acid than that of the districts surveied with 516 and over mg %. 10. The mineral compositions of Korean green tea were differences among producing distict. Because this tea contained abuntant Mn and Fe (1% and over), the tea leaf had effects on the blood production and detoxication of bodily tissue. It was found that the tea contained Bo, Cr, Ni, and Pb with microingredients of the others and was superior. From the results obtained above, it can be suggested that the superiorty of composition, producing district, charactristics and distribution of Korean tea plant was recognized, therefore it can be suggested that tea culture will be contributed to the effective utilization of a country, development of Korean Native green tea, the increase of the national income and the national health.