온주밀감 과원 토양에서 질소에 대한 시비방법과 시비수준에 따른 회수율

강영길,유장걸,강봉균 제주대학교 방사능이용연구소 2000 연구보고 Vol.14 No.-

In order to evaluate nitrogen (N) balance, from the different application method and levels of 15N applied to a satsuma mandarin orchard soil in spring, we surface-applied N as urea at a rate of 50 (water-dissolved), 100( solid and water-dissolved) and l50% (solid) of the recommended rate (180 kg ha-1) in spring ( labeled N), summer (nonlabeled N) with application ratio of 5:2:3. Fruit yield and qua1ity were not significantly affected by any treatment. Nitrogen contents of spring flush leaves in late August were 3.0% regardless of the treatments. The N recover by parts of tree itself was in the order of leaves, fruits, roots, stems, and the highest recovery per tree was 22.3% in the 50% recommended water-dissolved surface broadcast while there were not much differences for N recovery (11.9 to 13.6%) among the other three treatments. Total N content in top 30cm of lolls was 0.47% regardless of the treatments, but N proportion and total residual N from the fertilizer applied increased with increasing N rate while the N recovery in soils decreased. For the recommended N rate, N proportion and the residual N from the fertilizer applied were greater in the water-dissolved surface broadcast than those in soils surface broadcast. The highest total(tree + soils) N recovery was 70.9% in the 50% recommended water-dissolved surface broadcast, but tended to decrease to 52.2, 46.6, and 43.2% for the recommended water- dissolved surface broadcast, 100 and l50% of the recommended solid surface broadcast, respectively

濟州大 附屬農場 活用 硏究實態

姜奉均,趙南棋,宋昌吉 濟州大學校 亞熱帶農業硏究所 1998 亞熱帶農業硏究 Vol.15 No.-

진자검사시 근육 길이의 변화를 이용한경직의 정량적 측정

조강희,채진목,서정수,김태민,김봉옥,임현균,이영신 大韓再活醫學會 2000 Annals of Rehabilitation Medicine Vol.24 No.4

在來種 기장 品種의 特性에 관한 연구

朴良門,姜奉均 제주대학교 1994 논문집 Vol.39 No.-

강원도에서 수집한 在來種 기장의 播種期 移動에 따른 생육특성과 수량구성 요소 및 생산성을 조사하여 얻은 결과를 요약하면 다음과 같다. 1. 기장의 播種期가 늦어질수록 출수, 성숙까지의 일수가 단축되는 경향을 보였다. 2. 稈長 및 穗長의 변화는 播種期가 4월 22일에서 6월 17일로 늦어질수록 짧아지는 경향을 나타내었다. 3. 이삭당 粒數 및 이삭당 무게는 5월 20일 播種區에서 다른 播種區에 비해 유의하게 증가되었고, 1리터重 및 1000粒重도 5월 20일 播種區에서 높은 경향을 보였다. 4. 수량의 변화는 5월 20일 播種區에서 94.6kg/10a로 다른 播種區에 비해 현저하게 증가되었다. 5. 수량은 長과 正의 相關, 이삭당 粒數, 이삭당 무게, 1리터重, 1000粒重과는 고도의 正의 相關關係가 인정되었다. This investigation was conducted to determine the influence of planting time on agronomic characters, yield components and productivities in one variety of local proso millet collected from Kangwon-do area. The results are summarized as follows : 1. The later the planting time, the shorter heading time and maturing time of proso millet. 2. Length of culm and length of panicle were shorted as the later planting time. 3. Number of grains per panicle and weight of one panicle were significantly affected by May 20 planting time and weight of one liter, weight of 1,000 grains were also increased by May 20 planting time. 4. Grain yield was significantly highest by May 20 Planting time(94.6kg/10a). 5. Grain yield was significantly positively correlated with number of grains per panicle, weight of one panicle, weight of liter and weight of 1,000 grains.

摘心 및 生長調節劑 處理가 大豆의 生育과 收量形質에 미치는 影響

朴良門,姜奉均 濟州大學校 亞熱帶農業硏究所 1993 亞熱帶農業硏究 Vol.10 No.-

摘心 및 生長調節物質處理가 대두의 生育 및 收量形質에 미치는 變化를 규명하기 위하여 백운콩을 供試品種으로 하여 濟州大學校 農科大學 附屬農場에서 播種하였으며, 本葉 6枝期에 摘心 및 生長調節劑 (TIBA, CCC)의 濃度를 달리하여 1회 處理하였다. 이들에 대한 主要形質 및 收量을 調査한 結果는 다음과 같다. 1. 開花日數는 無處理에 비하여 TIBA 30ppm 以上 處理에서만 1일정도 빨라졌고, 成熟日數는 TIBA 20ppm 以上 處理에서 2∼5일이상 短縮되었다. 2. 莖長 및 主莖節數는 모든 處理에서 無處理에 비해 顯著하게 減少되었고, 倒伏은 TIBA 10ppm處理, 株當莢數는 CCC 1,000ppm處理를 除外한 모든 處理에서 減少하였으며, 莖直徑은 TIBA 30ppm, CCC 2,000ppm∼3,000ppm處理에서, 分枝數는 TIBA 20ppm處理, 乾物重은 TIBA 30ppm處理에서 增加되었다. 3. 收量의 變化는 無處理에 비해 TIBA 20ppm∼30ppm處理에서 19∼24%까지 有意하게 增加되었고, CCC 2,000ppm∼5,000ppm處理에서는 收量이 增加되는 傾向을 보였다. 4. 濃度別 處理에 있어서 倒伏, 莖長, 主莖節數 等은 TIBA處理와 CCC處理에서 濃度間에 有意性이 認定되어 高農度일수록 減少되는 傾向인 反面, 收量은 CCC處理에서만 有意性을 보여 高農度일수록 增加하는 傾向을 보였다. 5. 摘心에 따른 開花期 및 成熟日數는 無處理에 비하여 별 차이가 없었으며, 倒伏, 莖長, 主莖節數는 減少되었고, 莖直徑, 主當莢數, 結實率 및 10a當 種實收量은 增加되었다. 6. 成熟日數와 莖長 및 倒伏, 收量과 莖直徑間에는 正의 相關關係가 있었고, 莖長과 倒伏 및 主莖節數, 收量과 主當莢數間에 高度의 相關關係가 認定되었다. This experiment was conducted to investigate the effects of pinching off the terminal bud, TIBA and CCC on growth and yield characters of soybean. Removing the apical bud, TIBA (10, 20, 30, 40, 50 ppm) and CCC (1,000, 2,000, 3,000, 4,000, 5,000ppm) were treated once on 'Baekwoonkong' at 6th leaf stage of soybean which was seeded at the experimental farm, Cheju National University. The results are summarized as follows: 1. Soybean treated with TIBA at the level of 30ppm and above flowered a day earlier than non treated plants. Plants treated with TIBA at the level of 20ppm and above matured two to five days faster than non treated plants. 2. Stem length and number of nodes of mainstem were decreased remarkably by application of TIBA and CCC, lodging was siginicantly decreased by application of TIBA and CCC except TIBA 10ppm, number of pods per plants was increased by application of TIBA and CCC except CCC 1,000ppm, stem diameter was increased by TIBA 30ppm and CCC 2,000∼3,000ppm, number of branches was increased by TIBA 20ppm, dry stem weight was increased by TIBA 30ppm compared with nontreatment. 3. Seed yield was increased 19 to 24% by TIBA 20∼30ppm and tend to be increased by CCC 2,000∼5,000ppm. 4. The higher concentrations of TIBA and CCC, were inclined to decrease of lodging, stem length, number of nodes of mainstem but those of CCC were inclined to increase of seed yield. 5. Days to flowering and maturity was not affected by removing the apical bud. Lodging, stem length, number of nodes of mainstem were decreased, whereas stem diameter, number of branches, number of pods per plants, podding rate and seed yield were increased by terminal bud removal. 6. Days to maturity was positively correlated with stem length and lodging. Seed yield was positively correlated with stem diameter and number of pods per plant.

裁植密度가 靑刈豌豆의 主要形質 및 收量에 미치는 影響

趙南棋,韓英明,朴良門,姜奉均 濟州大學校 亞熱帶農業硏究所 1998 亞熱帶農業硏究 Vol.15 No.-

ABSTRACT Two pea cultivars, 'Cheju local pea' and 'Sparkle', were planted on 3 March at Cheju at 5 plant densities(10x 10, 15x15, 20x20, 25x25, 30x30cm) to determine the optimum plant population. Days to flowering decreased as planting density was increased. Days to flowering of Cheju local pea was greater than Sparkle that of. The broader planting density, the higher plant height. Cheju local pea was taller than Sparkle. As planting density increased, stem diameter and number of nodes per plant of two cultivars increased. Fresh forage yields of Cheju local pea (3,585kg/10a) and Sparkle(3.787kg/10a) were greatest at 10X 10cm planting. Plant height for each cultivar was positively correlated with fresh forage yield.

Effects of Application of Compost Made from Citrus Skin and Starch Sludge on Potato Growth

Kang, Bong-Kyoon,Han, Sang-Heon 한국유기농업학회 2006 韓國有機農業學會誌 Vol.14 No.3

Effects of Vermicompost on Growth of Fall-Cropping Potato in Volcanic Ash Soil

Kang Bong Kyoon The Korean Society of Crop Science 2004 Korean journal of crop science Vol.49 No.4

Recently, with increasing concern for sustainable agriculture and safe agricultural products, organic farming has become widely adapted as an alternative to conventional farming. This study was conducted to investigate the effects of earthworm casts (EWC) with $100\%$ organic compost on the growth and yield characteristics of fall-cropping potato (Solanum tuberosum L. cv. Dejima) in Jeju. The treatments consisted of seven plots: 2-, 4-, 6-, 8-, and 10-ton $ha^{-1}$ EWC-treated plots, 1.2-ton $ha^{-1}$ complex fertilizer $(N-P_2O_5-K_2O,\;10-10-14)-for-potato$ (CEP)-treated plot as conventional practices, and a control plot. The plant heights were greater in the plots where EWC and CFP were applied than in the control plot. Tuber diameter, number of stems per plant, and chlorophyll level tended to increase in the plots where 8-10 tons $ha^{-1}$ of EWC were applied. The application of CFP and EWC showed an increment in the average tuber weight per plant, but there was minimal significant difference. The application of 8-10 tons $ha^{-1}$ of EWC resulted in an increase in the total tuber yield (21.61-21.87 tons $ha^{-1}$) as compared to the other plots. The highest yield of market able tubers was $69.8\%$ of the total yield from the 10-ton $ha^{-1}$ EWC-treated plot. Consequently, with regard to the growth and yield characteristics of fall-cropping potato, the effects of EWC application were more favorable than the effects of the application of a chemical fertilizer.

Production of Speed Potato (Solanum tuberosum L.) under the Recycling Capillary Culture System using Controlled Release Fertilizers

Kang, Bong Kyoon,Han, Sang Heon The Japanese Society for Horticultural Science 2005 Journal of the Japanese Society for Horticultural Vol.74 No.4

Effects of Application of Compost Made from Citrus Skin and Starch Sludge on Potato Growth

Kang Bong-Kyoon,Han Sang-Heon 한국유기농업학회 2006 韓國有機農業學會誌 Vol.14 No.3

The experiment fields consisted of five plots as follows; 2, 4, and 8 tonsㆍha⁻¹ citrus skin in combination with starch sludge and pig manure mixing compost (CSSP), 4 tonㆍha⁻¹ fermented pig manure compost (FPMC) treated plot, and untreated control. Plant height and stem diameter were significantly increased by CSSP. Most of all, average tuber weight and tuber yield per plant were significantly increased in 4 and 8 tonsㆍha⁻¹ CSSP plots compared to the other plots. Marketable tuber (>50 g fresh weight) yield were superior in order of 4 and 8 tonsㆍha⁻¹ CSSP plot, 4 tonsㆍha⁻¹ FPMC plot, and 2 tonsㆍha⁻¹ CSSP plot.