발표논문 요지 - 토양조사 및 물리 ( 토조 (土調) ) : 경사지 및 산지이용에 관한 연구

최원개 한국토양비료학회 1974 한국토양비료학회 학술발표회 Vol.1974 No.12

7個國 土地評價分類法의 比較

崔元凱 진주산업대학교 1977 論文集 Vol.15 No.-

Up to date many countries had developed their own system of land evaluation. Each of these countries were concentrated to set up the system according to the their own soils and their own enviromental conditions. Among many systems the typical system of seven countries was chosen for this study. There were two systems i. e. the descriptive and the parametrical systems. U.S.D.A., U.K., the Dutch, R.O.K., and Japan followed the descriptive system, and German and a province of French followed the parametrical system. The results were summarized as follows. 1. The descriptive systems were generally recognized as four catagories. ◁표 삽입▷(원문을 참조하세요) 2. The descriptive systems were mainly based on the properties of soil, but the parametrical systems were mainly based on the textural classes. 3. U.S.D.A., U.K., Korean, Japan, and German systems were reasonably well classified considering soil itself. The Dutch system could not be applied abroad, and the French system could hardly applied outside a loess area.

營農生活館 敎育에 關한 硏究

崔元凱,李宗玉 진주산업대학교 1980 論文集 Vol.18 No.-

The purposes of this study were to make clear the effects of the agricultural life education and to get a better education for the agricultral junior technial college student. Data for this study were collected from questsionnarie to the freshmen who had completed the agricultural life education for a week in 1979 and 1980. The following conclusions were drawn from the research findings: 1. There wre many students who would wished to be transferred to senior college or university as a motive of the entrance of junior technical college. A number of students was decreased to be transferred to senior college, and increased to be accomplished the purposes of agricultural junior technical college after the completion of the agricultural life education. 2. Most of students were much interested by the succesful stories of practical and real farm management and home management, the day's routine of life experiences, and several group activites such as group discussion, group recreation, candle fire ceremony etc. 3. Throughout the agricultural life education many students were much interested in farm life and farm settlement. 4. The effective results of agricultural life educbtion would be much increased by the educational supplement of the speciality and the professor's cooperation of each department. 5. The fruitful education would be expected in perfect harmony among guidance professors, instructors and students, and by good accommodations.

主要作物의 微量要素에 關한 硏究 : 第2報 硼素 및 石灰가 배추 生育에 미치는 影響 2. Effects of Boron and Lime on the Chinese Cabbage

崔元凱 진주산업대학교 1970 論文集 Vol.4 No.-

硼素가 缺乏한 狀態의 배추 圃場에서 硼素施用 適正量을 캐고 硼素와 石灰를 連關지워 施用한 結果를 要約하면 다음과 같다. 1. 微酸性을 나타내는 硼素缺乏地帶의 배추 圃場에서 石灰를 置換酸度 中和量의 倍量을 施用하고 또硼素를 施用하여 石灰와 硼素 共施에 因한 收量差를 보았으나, 認定못했다. 2. 石灰無施區,石灰普肥區, 石灰培肥區 共히 硼素施用에 따른 收用效果는 높아, 硼素 10a當 1.5㎏施用의 것이 가장 많은 收量을 내고 있다. This experiment was designed to make clear the effects of the application borax with lime on Chinese cabbage growing in B deficient and pH 6.2 soil. The results obtained were as follows; 1. The most effective amounts of borax with lime applied to the soil were 1,500g per 10a. 2. Borax and non, common, double amounts of lime were applied in the field, but the yield was the same.

토양의 粒徑分析에 관한 硏究 : 第1報 가장 效果的인 土粒의 分散處理 1. The most effective dispersing treatments for partcle size distribution analysis

崔元凱 진주산업대학교 1972 論文集 Vol.9 No.-

This experiment was practised to find out the most effective dispersing treatments of the preparation of a soil sample for the particle size distribution analysis. Ten dispersing treatments were compared in this experiment. According to the hydrometer readings results obtained were as follows. 1. Sodium hexametaphosphate dispersing treatment was the best method for this soil, especially H_2O treated on. 2. H_2O treated, Hcl washed, NaOH dispersed treatment was shown to be only slightly inferior to the sodium hexametaphosphate treatment. 3. Inferior treatment is H_2O dispersed treatment, untreated H_2O_2 and unused dispersing.

佛素의 C_3 및 C_3 光合成速度에 미치는 影響

崔元凱,山內稔,山田芽雄 진주산업대학교 1982 論文集 Vol.20 No.-

管農組織活動을 통한 農業收益增大方案 摸索

崔元凱 진주산업대학교 1992 論文集 Vol.30 No.-

폐기시키는 유자종실의 유지자원화의 이용가능성을 알아보기 위해서 1990년도에 남해군에서 생산된 유자를 원료로하여 유자종실의 화학성분과 유자종실 기름의 성상, 획분별 지질 조성 및 지방산 분석을 한 전보에 이어서 T.L.C에 의해서 분리되어진 각 획분별 지질에 있어서의 지방산 조성을 분석하였다. 획분별 지질로는 glycolipid, steryl ester, triglyceride, free fatty acid, digliceride 및 phospholipid를 얻었으며 각각의 지방산 조성은 다음과 같다. Glycolipid에 있어서는 palmitic acid, 30.6%, oleic acid, 28.8%의 순으로 나타났으며, steryl ester에 있어서는 palmitic acid, 30.4%, oleic acid, 23.5%였고, triglyceride는 oleic acid, 34.8%, palmitic acid의 함량이 29.2%로 나타났으며, free fatty acid의 경우에는 palmitic acid, 49.6%, oleic acid, 21.8%를 보였으며, diglyceride는 palmitic acid, 31.4%, palmitoleic acid, 30.5%, stearic acid가 16.4%의 함량을 나타내었고, phospholipid에 있어서는 oleic acid, 41.4%, palmitic acid가 40.7%를 나타내었다. 이들 각 획분별 지질에 있어서 공통적으로 oleic acid와 palmitic acid가 높은 함량을 나타낸 반면에 stearic acid, linoleic acid 및 linolenic acid는 그렇게 많은 함량을 나타내지 않았다. 그리고 diglyceride에서는 다른 지질들과는 달리 oleic acid 대신에 palmitoleic acid와 stearic acid의 함량이 특이적으로 많이 나타났다. Now is the international age. International marketing is recently defined as that Korea has to be involved in buying or selling farm products. Korean farm size is too small to compete with a large farm size of advanced countries. Furthermore, the population of rural youths are tremendously decresed last two decades. Farm life through the group farming can be as profitable and pleasure as city life. A study on prifitable farm management through the group farming organization is summarized as follows : 1. The small farm group has to be reformed and activated by the group farming organization. 2. The activation of private farming organization has to be accelerated by the public farm organization. 3. At precent, it is very profitable for the small size farmer to involve in farming corporate association. 4. In future, it is very profitable for the modern farmer to get up a farming limited company system. 5. It is also profitable to produce traditional and healthy foods. 6. It is important that rural youth should be educated in practice. 7. A prize system is recommended to activate group farming organization.

主要作物의 微量要素에 關한 硏究 : 第1報 硼素 및 有機物이 배추 生育에 미치는 影響 1. Effects of boron and organic matter on the chinese cabbage

崔元凱,河浩成,鄭鎬權,姜鎬允 진주산업대학교 1969 論文集 Vol.3 No.-

硼素缺乏地帶의 배추圃場에서 硼素의 施用方法 및 施用量을 달리하여 얻은 收量으로 肥效을 追求하고, 또 完熟堆肥의 效果를 調査한 結果를 要約하면 다음과 같다. 1. 硼砂 土壤施用에 依한 배추의 收量은 分散分析結果 1% 水準의 高度의 有意性을 보였으며, 硼砂 10a當 1,500㎏施用의 것이 가장 많은 收量이었고, 그 以上의 硼砂施用에서는 오히려 減少했다. 2. 배추의 硼酸 葉面施用의 差異에 依한 收量差는 土壤施用 때처럼 뚜렷한 差를 볼 수 없었다. 大體로 硼酸 0.25%∼0.5%의 濃度로 葉面撒布한 것이 좋은 結果를 거두었다. 3. 完熟堆肥의 增施에 따라 배추의 收量은 增加되었다. 10a當 1,800㎏ 施用에서 最大値의 收量에 이르고 그 以上의 增施에서는 별다른 收量의 增加를 볼 수 없었다. This experiment was designed to make clear the effects of the application of Boron and organic matter on chinese cabbage growing in Boron dificient soil. The results obtained were as follows. 1. The application of Borax in increased remarkably the yield of the chinese cabbage. The yield was increased by the application of Borax in the soil. It reached maximum amounts at 1,500g per 10a, but decreased above 1,500g per 10a. 2. The various concentration of Boron on the leaf spray was no more effective than the application of Boron in soil. The adequate concentration of Boric Acid on the leaf spray was from 0.25 percent solution to 0.5 percent solution. 3. The yield of the chinese cabbage was increased by the application of the compeletely decayed compost. It reached maximum amounts at the application if 1,800㎏ per 10a, but there was no effects above 1,800㎏ per 10a.

培養液溫度가 大麥의 P^32吸收에 미치는 影響

崔元凱,沈相七 진주산업대학교 1968 論文集 Vol.1 No.-

1.大麥根에 依한 燐酸의 吸收는 培養液溫度의 上昇과 比較해서 增加아혀 25℃에서 最大値에 이르고 그 以上에서는 오히려 減小한다. 2.地上部로의 移動도 온도에 따라 현저히 증가했다가 30℃에서는 역시 急降下하는데 이것은 吸收時보다도 온도에 더 예민했다. 3.舊根이 新根보다도 燐酸의 吸收能이 越等하였다. This experiment was designed to investigate the optimum temperature of phosphorous uptake in barley plants, and the absorption actvity of young and old roots by using radioisotope p^32. The results obtained were as follows. 1.The absorption of p^32 was increased gradually by raising temerature, reached to maximum amounts at 25℃, but decrease above 25℃. 2.The increase tendencies of absorption by roots and the transference to stem were seemed to be same but the amounts of transference was remar kably decreased above 25℃. 3.The specific activity (cpm/gr.)of p^32 was lower in the barley plants with the the only young roots than that of the barley from which the old roots were not removed. So it seemed that the old roots were more concerned with phosphorous absorption than the young roots.

作目別 協議會의 組織 運營의 活性化 方案

崔元凱,高永玉 진주산업대학교 1993 論文集 Vol.32 No.-

Average farm size is so small 1,2 ha to manage the modern farming in Korea now. It is a very profitable farm management for small size farmers to improve farm business through the group farm organization. Group farm organization has many merits like a common use of large farm machineries. Partial farm operations and common marketing without middle men. There are 1,600 farming groups in Korea. One third of them are in high level, half of them are in the middle level, and the rest of them are in the low level to improve farm business. 150 succesful group farms in high level are investigated by the visit study. The most important things to success are two main points, the able and active leadership and the cooperative membership.