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金容岩,卞珠燮 충북대학교 엽연초연구소 1981 煙草硏究 Vol.8 No.-
This experiment was conducted with three tobacco varieties(Hicks, Burley 21 and Sohyang0 and three cropping systems(improved mulching general mulching and non mulching)used NC 2326 to analyze growth kinetics by means of growth function involved its velocity and accelerated velocity. The basic growth data were obtained by harvest method at interval of ten days after transplanting and analzed by regreession equation, determinant of matrix and differentiation. The total dry weight of leaves, stalks and roots of a plant formed a sigmoid curve, and its fuction fitted in logistic curve satisfactory. Tobacco plant showed a growth pattern of accelerated velocity. And growth kinetics increased in proportion to biomass(Y) at any growing time and to the difference between the biomass and maximum biomass, and decreased in proportion to value of Y2. On varieties and cropping system, the most maximum velocity of a plant was 2.5-10g/day in general mulching system of NC 2326 and maximum accelerated velocity was 20-60mg/day2 in Burley 21.
담배의 생장반응에 관한 수리해석적 연구 제2보 담배생장곡선의 신모형에 관하여
김용암,반유선,Kim, Y.A.,Ban, Y.S. 한국작물학회 1982 한국작물학회지 Vol.27 No.1
The experiment was conducted with three varieties (Hicks, Burley 21, and Sohyang) and cultivation type (Improved mulching, general mulching, and non mulching) of NC 2326 to model to curve of tabacco growth against time. The basic growth data were obtained by harvest method at intervals of ten days from transplanting at 7-8 times and analyzed by polynomial regression, orthogonal polynomial, and logarithmic transformation. It is shown that the C model of growth curve: T = A +$\sqrt{(1.4 AK + K)}$2K provides an excellent fit.
담배의 생장반응에 관한 수리해석적 연구 I. 전건물중의 생장곡선과 생장속도
김용암,변주섭 한국연초학회 1981 한국연초학회지 Vol.3 No.2
This experiment was conducted with three varieties (Hicks, Burley 21, Sohyang) and cropping systems (Improved mulching, Mulching, Non mulching) of NC 2326 to analyze growth kinetics by means of growth function involving its velocity and accelerated velocity. The basic growth data were obtained by harvest method at interval of ten days from transplanting to hundred days and analyzed by , regression equation, determinant of matrix, and differentiation. The plot of total dry weight of leaves, stalk and roots per a plant vs. time forms a sigmoid curve and its function fitted logistic satisfactorily. Tobacco plant grows at an accelerated velocity. And growth velocity, symmetric about an inflection point, is proportional to biomass attained and to the difference between biomass attained and the maximum, and to the decrease according to the biomass. Of varieties and cropping systems, the most maximum velocity was 9.58g per day per plant in mulching cultivation of NC 2326 and maximum accelerated velocity was 264mg per $day^2$ per plant in Burley 21.
김용암,유점호 한국연초학회 1981 한국연초학회지 Vol.3 No.2
Data for this study were obtained from Burley 21 (Nicotiana tabacum L.) grown under various densities on the field in 1978 and 1979 at the Jeonju Experiment Station, Korea Ginseng & Tobacco Research Institute. Interrelations between yield and its components were statistically studied by correlation, regression, and pathway analysis. Correlation of yield with plant population was significant and positive. Quadratic functions for yield vs. plant population and the length of the largest leaf were fitted to the data. Multiple recession equation between yield and its components (leaf number ($X_1$), a leaf area ($X_5$), weight per unit leaf area ($X_9$), plant population ($X_14$)), was significant at the 5% level. Measuring the relative importance of its components on yield, plant population was 49.5%, weight per unit leaf area 25.3%, a leaf 15.6%, and leaf number 9.8%.
김용암,류명현,백종운 한국연초학회 2001 한국연초학회지 Vol.23 No.1
In order to save hanging labor hours and reduce work intensity for bulk curing of the flue-cured tobacco, and electric hoist was developed. It consists of a pair of square steel frames with side plates and rolling casters to move back and forth on the second tire of bulk barn, and wire rope type lift was attached to the beneath of its top center. The lift driven by DC motor could be controlled by operating switch with one limit switch and control box, and a scissors shaped gripper was deviced to grip tobacco rack to the end of wire rope. As the results of experiments with electric hoist, labor hours for hanging could be saved by 30 to 40% as compared with those in conventional method. With simple and light structure, it was possible for even woman to load the harvested tobacco, and it could be recommended for farmers to use this device with reasonable price.
김용암,류명현,백종운 한국연초학회 2000 한국연초학회지 Vol.22 No.1
In order to improve the loading efficiency in bulk dryer for the flue-cured tobacco leaves, a new hanger device was developed. It consists of two layers frame, in which large volume of the harvested leaves could be simply loaded. As the results of experiments with new hanger device, labor hours for loading could be saved by 34 % as compared with those in conventional 3 layers hanger, and loading capacity increased by 36%. The weight of hanger could be also reduced by 0.6kg compared to conventional 3.4kg, showing possibility of cost reduction for the developed hanger device with saved number of punching the rolled steel panels.