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Sohn,S.M.(1990) The Profits of Organic Agriculture and Assured Trademarks for Organic Agricultural Products in Several European Countries. Report of Technology for Community Development. UNESCO Seminar. Pai Chai University Press 86-114
Sohn,S.M., Lee,J.S.(1990) Effect of Nitrogen and Potassium on the Plant Growth, Yield and Nodule Formation in Winged Bean (Psophocarpus tetragonolobus). Korean Journal of Crop Science 35(6): 525-531
Sohn,S.M., Lee,J.S.(1990) The Effects of Tunnel Materials and Water Soluble Compound Fertilizer on Tunnel Culture in Job's tears (Coix lachryma-jobi L. var. mayuen Stapf). The Journal of the Korean Society of International Agriculture 2(2):171-179
Lim,S.C., Kang,S.S. and Sohn,S.M.(1990) Trend of Agriculture Policy and Production in D.P.R.K. I. Study on Agricultural Policy in North Korea. The Journal of Korean Society of International Agriculture 2(1):9-16
Lim,S.C., Kang,S.S. and Sohn,S.M.(1990) Trend of Agriculture Policy and Production in D.P.R.K. II. Study on Productive Basis of Agriculture. The Journal of Korean Society of International Agriculture 2(2):97-103
Sohn,S.M. (1990) The Effects of Different Levels of Nitrogen fertilization on the Contents of NO3--N, Glutamine, Asparagine and Protein in Potato Tuber. Dan Kook University Research Papers 24:715 -724
Lim,S.C., Kang,S.S. and Sohn,S.M.(1990) Study on cereals production in D.P.R.K. The Journal of Korean Society of International Agriculture 4(1):31-36
Sohn,S.M., Kim,J.H.(1991) Effect of Polyethylene Film Mulching on Contents of NO3- in Soil, Growth and Immature Fruit Yield of Okra (Hibiscus esculentus L.). The Journal of Korean Society of International Agriculture 2(1):79-92
Sohn,S.M. (1991) Bestimmung der Glutaminsynthetase-Aktivit t im Rohhomogenat von Pflanzenproben. PP 8-12. In "Biochemisches und Ern hrungsphysiologisches Praktikum" ed. E. Przemeck, Institute f r Agrikulturchemie. University of G ttingen. Germany.
Sohn,S.M., Przemeck,E. (1991) Relationship between Glutamine Synthetase Activity and Nitrogen Content and Grain Yield in Wheat. Korean Journal of Crop Science 36:545-553
Yook,W.B., Jeon, B.T., Sohn,S.M. and Jung, H.S. (1992) The Environmental Contamination in the Potable Water by Cropping System in the Metropolitan Area. Journal of Korean Grassland Science 12:201-210
Sohn,S.M. et al (1992) General Biology. Dan Kook University Press, Seoul/Korea. Pages 568
Sohn,S.M., Emes,M.(1992) The Influence of NO3- Concentration on the Activity of Nitrate Reductase(NR), Nitrite Reductase(NiR), Glutamine Synthetase1 (GS1) and Glutamine Synthetase2 (GS2) in Dark grown Pisum sativum L. Korean Journal of Crop Science 37(5):468-475
Sohn,S.M., Oh,K.S.(1993) Study on Utility of Nitrate Content in Edible Parts of Crops as An Indicator of Simplified Judgement for Superior Agricultural Products by Low Nitrogen Input. Journal of Korean Society of Organic Agriculture 2(1):2-15
Sohn,S.M., Han,I.A.(1993) The Movement toward Environmental friendly Sustainable Agriculture and Advanced Countries. Dan Kook University Research Papers 27:843-853
Sohn,S.M., Oh,K.S.(1993) The Influence of Nitrogen Application on the Accumulation of NO3- Content in Edible parts of Chinese Cabbage, Radish and Cucumber. Journal of Korean Society of Soil Science and Fertilizer 26:10-19
Lee,J.S., Sohn,S.M. and Oh,K.S.(1993) Effects of NaCl Salinity at Tillerling Stage on Mineral Contents, Growth and Yield of Rice. The Journal of Korean Society of International Agriculture 5:167-174
Sohn,S.M.(1994) Differences on the Nitrate Accumulation in the Edible Parts of Chinese Cabbage and Radish cultivated by Conventional and Organic Farming Method. Journal of Korean Society of Organic Agriculture 3:87-97
Sohn,S.M., Lim,S.C., anf Kang,S.S.(1994) Situation and Prospect of the Agricultural Production in the North Korea. Journal of North Korea Agriculture 1:58-71
Lee,J.S., Sohn,S.M.(1994) Effects of Saline Solution at Seedling on Rooting Activity of Rice. The Journal of Korean Society of International Agriculture 6:129-137
Sohn,S.M. (1994) The Limit Value of NO3- in Edible Parts of Vegetables for the Safe Agricultural Products and for the Environmental Friendly Sustainable Agriculture. The Environmental Research Forum of Agriculture, Forestry and Fishery
Sohn,S.M. (1994) NO3- Accumulation in Edible Parts of Chinese Cabbage and Radish Cultivated by Conventional and Organic Farming and its Limit Value for Safe Agricultural Products. 10th International Organic Agriculture IFOAM Conference. Lincoln University / New Zealand, 139 page
Sohn,S.M. (1994) The Limit Value of NO3- in Vegetables and it's Amount of Daily Intake by Korean. PP 251-276. In: International Symposium on Strategy for the Development of Organic Farming in Korea. Rural Development Administration, Ministry of Agriculture and Fishery. 12-13th October 1994, Suweon / Korea. 329 Pages
Sohn,S.M. (1995) Environmental Agriculture in European Countries. pp 119-142, In: Environmental Policy on Agricultural, Forestry and Fishery. The Environmental Research Forum of Agriculture, Forestry and Fishery, Seoul/Korea, Pages 142
Sohn,S.M. (1995) Problems and Prospects of Korean Organic Agriculture. PP 27-64. In: Proceeding of the Symposium on Korean Organic Agriculture. July 5, 1995. Seoul Press Center, Pages 83
Sohn,S.M. (1995) NO3- Accumulation in Chinese Cabbage and Radish cultivated by Conventional and Organic Farming and its Limit Value for Safe Agricultural products. PP 158-166. In: "Food, Culture. Trade and the Environment", Proceeding of 2nd IFOAM/Asia-Pacific regional Conference. 19-21 July 1995, Seoul/Korea, Pages 169
Sohn,S.M. and K cke,M. (1995) Investigation on the Dynamics of NO3- in Barley Rhizosphere and its Suitability for N-Fertilization Strategies and for Environmental Control. PP 460-461. In: Crop Research in Asia : Achievements and Perspective. Eds. R.Ishii and T.Horie, Fukui/Japan, Pages 826
K cke,M. and Sohn,S.M. (1995) Implications of Examinations of the mineral Nitrogen Dynamics in Korea and Germany for N Fertilization Recommendations and for Environmental Protection in Asia
Sohn,S.M., K cke,M., Han,I.A. (1995) Dynamics of NO3--N in Barley Rhizosphere and an Appropriate Nitrogen Fertilization by Soil Test. Korean Journal of Crop Science 40:185-194
Sohn,S.M., Oh,K.S. and Lee,J.S.(1995) Effects of Shading and Nitrogen Fertilization on the Yield and Accumulation of NO3- in Edible Parts of Chinese Cabbage. Journal of Korean Society of Soil Science and Fertilizer 28:154-159
Sohn,S.M. (1995) Core Aspects of Environmental Friendly Sustainable Agriculture in Major European Countries and its Approach in Korea. The Journal of Korean Society of International Agriculture 7(2):138-155.
Sohn,S.M. (1995) Limit value of Nitrate Content and Daily Nitrate Intake by Vegetables. Journal of Korean Society of Organic Agriculture. 4(2):45-61
Sohn,S.M. and Kim,Y.H. (1995) Study on Comparison of Major Technologies in Korean Organic Agriculture to International Basic Standards for Organic Agriculture - Differences between IFOAM Basic Standards, Basic Standards for Organic Agriculture in Advanced Conutries of Environmental Agriculture, and Major Technologies adapted by Korean Organic Agriculture. Korean Journal of Organic Agriculture 4(2):97-136
Sohn,S.M. (1995) Agriculture in North Korea Today and Possibilities of Technical Cooperation between North and South Korea. 167-169. In "Proceeding from International Symposium in Commemoration of the 50th Anniversary of Korean Liberation, Agricultural Trade and Development Cooperation in Northeast Asia" Korea Rural Economic Institute, Seoul/Korea, Pages 196
K cke,M. and Sohn,S.M. (1995) Investigations on the Dynamics of Mineral Nitrogen in the Soil under Korean Cropping Conditions and its Suitability for N Fertilization Strategies and for Environmental Control. Final Report for 1993-1995 DFG/KOSEF Research Cooperation. Pages 44
Sohn,S.M. and Alley,M.M. (1996) Soil Nitrate Test in U..A. for Optimum Nitrogen Fertilization: Principles and Current Utilization Status. Journal of Korean Society of International Agriculture 8(1):24-33
Sohn,S.M. (1996) Nitrate and Overuse of Organic Fertilizer. Page 31. In: Proceeding of 11th IFOAM International Scientific Conference. 11-15 August 1996. Copenhagen/ Denmark, Pages 210
Sohn,S.M. (1996) Soil Nitrate Test in U.S.A. for Optimum Nitrogen Fertilization: Principles and Current Utilization Status. PP 87-103, In: Current Tendency on Environmental Agriculture. Editors, Park, E.W. et al. NICEM/SNU, Suweon/Korea, Pages 299
Sohn,S.M., Lee,Y.G., Han,D.H. and Kim,Y.H. (1996) NO3- Accumulation in Rhizosphere and Edible Parts of Chinese Cabbage, Lettuce and Kale by Different Farming Methods in Farm Level. DaeSan Research Papers 4:143-152
Sohn,S.M. (1996) Environmental friendly function and safe food production of korean organic agriculture. PP 1-15. In: KAVKAS Gemeinsames Seminar "Umwelt als gesellschafts - polotisches Anliegen". 23-24 Nov.1996, Boeun/Korea, Pages 87
Sohn,S.M., Han,D.H., Kim.Y.H. (1996) Chemical Characteristics of Soils cultivated by the Convnetional Farming, Greenhouse Cultivation and Organic Farming, and Accumulation of NO3- in Chinese Cabbage and Lettuce. Korean Journal of Organic Agriculture 5(1):149-165
Sohn,S.M. et al (1996) Industrial Crops. Hyangmun Publisher. Pages 353
Chung,K.S, Sohn,S.M. and Lee,Y.G. (1996) Environmental Friendly Function and Safe Food Production by Organic Agriculture in Europe. Korean Journal of Organic Agriculture 5(1):45-66
Sohn,S.M. and Yun,D.H. (1996) Changes of Nitrate Contents in Edible Parts of Chinese Cabbage by Conditions of Cooking and Post-Harvest Storage. Korean Journal of Organic Agriculture 5(1):101-110
Sohn,S.M. (1996) Environment Pollution in Agriculture Sector. In: Textbook for Agricultural Administrator. Training Center for Agriculture Administrator. MAFF. Pages 336
Sohn,S.M. (1996) Safe Food Production and Environmental Agriculture ralated with Nitrate limit value in Vegetable. Environment and Life 11: 170-181
Sohn,S.M. and Yoneyama,T. (1996) Nitrate in the Vegetables: Physiology and accumulation of nitrate in the plant and intake by human. Agriculture and Horticulture (in Japanese) 71(11):1179-1182
Sohn,S.M. (1996) Utilization, Economic Importance and Future of Tropical Tuber Crop, Cassava. Journal of the Korean Association of African Studies 8:89-113
Sohn,S.M. (1997) Accumulation of Nitrate in Vegetables and Phosphate in the Rhizosphere by Overuse of Organic Fertilizer. Abstracts of International Conference on Agricultural Production and Nutrition, Page 38, School of Nutrition Science and Policy, Tufts University, Boston/USA, March 19-21, 1997
Sohn,S.M. (1997) Development, Current Issues and Prospects of Organic Agriculture in Korea. Korean Journal of Organic Agriculture 6(1):71-84
Sohn,S.M. and Chung,K.S. (1997) Agrotechnical and Agropolitical Approaches toward Successful Settling for the Environmental Agriculture System in Korea. Korean Journal of Organic Agriculture 6(1):13-36
Sohn,S.M. (1997) Environmental friendly function and safe food production by korean organic agriculture. Proceeding of Kyungnam Rice Research Meeting / Korea Sustainable Agriculture Research Group. Chang-ryung, 9th May 1997, PP47-69
Sohn,S.M. et al (1997) Theory and Experiment of Crop Physiology. Rural Development Administration, Minstry of Agiculture and Forestry, Suweon/Korea. pages 1083
Sohn,S.M., K cke,M. and Lee,Y.G. (1997) Method of Nitrate Nitrogen Determination for Plant, Soil and Water Analysis by E. coli cells. Journal of Korean Society of Soil Science and Fertilizer 30(4):361-369
Sohn,S.M. and Alley,M.M. (1997) NO3--N Accumulation in Vegetables and Soil Profiles Due to Excessive Organic Fertilizer Application. Agronomy Abstracts. 1997 Annual Meetings of ASA/CSSA/SSSA at Anaheim/CA, Oct. 26-31,1997, USA
Sohn,S.M. (1997) hemical Characteristics of Soil and NO3- Accumulation of Vegetable by Conventional and Organic Farming. In "Soil Quality Management and Agro-Ecosystem Health". Published by KSSSF, Seoul/Korea, PP186-199
Sohn,S.M., Lee,Y.G., Kim,Y.H. and Park,Y.H. (1997) Distribution of Nitrate Content in Vegetables for Kimchi Raw Material and Changes of Nitrate Content by Salting of Chinese Cabbage and by Cooking Process of Kimchi. Korean Journal of Organic Agriculture 6(1):63-75
Sohn,S.M. et al (1998) Composting of Municipal Waste. KOWREC Environmental Book Series No.5, Dong Hwa Technology Publishing Co. Seoul/Korea. Pages 312
Moon,D.K., Park,Y.H. and Sohn,S.M. (1998) Study on the Content of Nitrate in Tea, Coffee, Beer and Korean Traditional Tea. Dan Kook University Research Papers
Sohn,S.M., J.C.Chae and Kim,Y.H.(1998) Regulation on Weed Control in International Basic Standards on Organic Agriculture. Korean Journal of Organic Agriculture 6(2):82-106
Sohn,S.M., Park,Y.H. (1998) Study on the Content of NO3- of Leaf in Chinese Cabbage, Cabbage and Lettuce as affected by Leaf Age. Korean Journal of Organic Agriculture 7(1):115-128
Sohn,S.M., Yoon,J.Y. (1998) Study on the Content of NO3- in Green Vegetables Juice by different Sorts, Harvesting Time, Mixing Rate of Vegetable, Storage Condition and Manufacturers. Korean Journal of Organic Agriculture 7(1):91-104
Sohn,S.M. et al (1998) Direct Payment for Environmentally Sound Agriculture. Korea Rural Economy Institute. Pages 289.
Sohn,S.M., Kim,Y.H. and Yoon,J.Y. (1999) Nitrate Contents in Vegetables Cultivated by Organic Farming in Korea. Korean Journal of Organic Agriculture 7(2):125-151
Sohn,S.M. (1999) Eco-Village and Organic Agriculture for 21th Century. Proceeding of '99 Eco-System conservation and Life Style in the future. PP43-65. Organized by CAI(Consumer Affairs Institute). Seoul Press Center. 19th March 1999.
Sohn,S.M. et al (1999) Development of Rice Growth Simulation Model and Expert System for Environmentally Sound Fertilization. MAFF Research Paper. Pages 167, 20th Feb 1999
Sohn,S.M. (1999) The Basic Concepts of Korean Eco-village. In: Proceedings of AgEnergy '99. Athens/Greece, Agricultural University of Athens, "Energy and Agriculture towards the Third Millennium", Vol.1:711-716, Organized by European Commission, FAO, UNESCO and EurAgEng.
Sohn,S.M. et al (1999) Korean Organic Agriculture and Guidelines of FAO/WHO Codex Alimentarius for Organic Food. Horticultural Technology. Chungnam National University. Pages 323
Sohn,S.M. (1999) Guidelines of Codex alimentarius for organically grown food and Korean organic farming. Korean Organic Farmer Association. Seoul/Korea Pages 24
Sohn,S.M. (1999) Chemical Characteristics of Rooted Soil Profile and Nitrate Content of Cucumber by Organic Farming only Applying Organic Fertilizer. In: Proceeding of Workshop of sustainable Development in Horticulture in Asia and Oceania. PP 1-17. Organized by Monbusho International Scientific Research Program: Cooperative Research by The University of Tokyo, Massey University and Seoul National University. Seoul National University, Suweon/Korea. September 29, 1999
Sohn,S.M., Kim,Y.H. and Park,Y.H. (1999) Site- and Crop Specific Fertilization Recommendation by Soil Nitrate Testing for Organic Farming. Daesan Research Papers 7:43-56
Sohn,S.M. (2001) New Strategy of Organic Agriculture with the Basic Concept of Eco-village. Proeeding of 4th IFOAM-Asia Conference. PP97-102, 18-21 Nov. 1999, Development Academy of the Philippines, Tagaytay City, Philippines
Chang,K.R. and Sohn,S.M. (1999) Agronomic Comparison of Organic and Bio-dynamic Agriculture in Germany. Korean Journal of Organic Agriculture 11(4):340-349
Sohn,S.M. (1999) International Trends on Eco-village and Organic Agriculture for 21st Century. Korean Journal of International Agriculture 11(3):264-274
Kim,Y.H. and Sohn,S.M. (1999) Appraisement and Purchase Consciousness of Consumer on Organically Grown Products. Korean Journal of Organic Agriculture 8(1):49-67
Sohn,S.M. (1999) Environmental Impact and Safe Vegetable Production of Korean Organic Farming only Applying Organic Fertilizer to Maintain/Increase Soil Fertility. Korean Journal of Organic Agriculture 8(1):111-129
Sohn,S.M. (2000) FAO/WHO Codex Guideline for Organically Grown Food and its Implementation of Organic Crop and Animal Production in Korea, Korean Society of Agricultural Science, PP257-273
Sohn,S.M. (2000) Main Principles of Plant Production of FAO/WHO Codex Alimentarius for Organically Grown Food. The Journal of the Korean Society of International Agriculture, Vol.12, Supplement 1, PP79-100
Sohn,S.M. (2000) Appropriate fertilization of organic fertilizer. Agronomy and Horticulture 165:115-117
Sohn,S.M. (2000) Problems and Solutions of Soil Fertility Enhancement in Korean Organic Farming. Korean Journal of Organic Agriculture 8(2):53-77
Chang,K.R. and Sohn,S.M. (2000) Sustenance and Enhancement of Soil Fertility for Organic Farming by Legumes and Green Manure. Korean Journal of Organic Agriculture 8(2):97-110
Sohn,S.M. (2000) Codex alimentarius for organically grown food and Korean organic agriculture. Proceeding of Symposium of Korean Society of Organic Agriculture. 2000/6/16, University of Daegu, PP5-29
Sohn,S.M. (2000) Organic Farming in Worldwide. Proceeding of Symposium in 2000 Jeonbuk Saenommin Association, 2000/8/23-24, Naejangsan Hotel, PP17-52
Sohn,S.M. et al (2000) Soil Dictionary. Seoul National University Press, Pages 730
Sohn,S.M. et al (2000) Effect of Environmentally friendly Agriculture and Ecological Change in Daeho Area, Pages 152
Sohn,S.M. (2000) Development of Reduction Technology for Nitrate Accumulation in Vegetables, Ministry of Agriculture and Forestry, Pages 315
Sohn,S.M. (2000) Codex Guideline for Organically Grown Food and its Implementation of Organic Crop and Animal Production in Korea, Korean Society of Organic Agriculture, PP17-34
Sohn,S.M. (2000) Organic Agriculture and Community Supported Agriculture Movement and National Standard for Organic Food in USA. The Journal of the Korean Society of International Agriculture 12(3):226-237
Jeung,J.Y., Sohn,S.M. and Kim,Y.H. (2000) Origin, Pattern and Management of Community Supported Agriculture in USA, Proceeding of Symposium of Korean Society of Organic Agriculture. 2000/12/8, National Agricultural Cooperative Agency, PP49-57
Sohn,S.M. and Han,D.H. (2000) Accessment of Environmentally Sound Function on the Increasing of Soil Fertility by Korean Organic Farming. Korean Journal of Soil Science and Fertilizer 33(3):193-204
Sohn,S.M. et al (2000) Direction of Korean Agricultural Sciences for New Century. Munyoungdang Publisher, Pages 337
Jung,J.Y., Sohn,S.M. and Hwang,K.N. (2001) Organic Farming, Korean Organic Farmer's Association. Pages 134
Sohn,S.M. et al (2001) Environmental Agriculture Textbook. Kyungbuk Agricultural Technology Institute, Pages 193
Jung,J.Y,, Sohn,S.M. and Kim,Y.H. (2001) Participation of Community and Citizen for CSA Movement and Development of Organic Agriculture (I). Korean Journal of Organic Agriculture 9(2):1-22
Sohn,S.M. (2001) International Movement on Rural Eco-village for 21st Century for an Environmentally Benign Agriculture. Korean Journal of Organic Agriculture 9(2):39-54
Joo,S.J., Sohn,S.M. and Kim,J.H. (2001) Development of Organic Liquid Fertilizer for Leaf Vegetable under Greenhouse. Korean Journal of Organic Agriculture 9(2):83-99
Jung,J.Y,, Sohn,S.M. and Kim,Y.H. (2001) Study on Activity, Type and Establishment of Community Supported Agriculture in USA and Japan. Korean Journal of Organic Agriculture 9(2):1-16
Sohn,S.M., Lim,K.S. and Kim,Y.H. (2001) Growth and Yield of Rice, Analysis of Economics and Environmental Impact in Duck-Paddy Rice. Proceeding of Symposium for Environmentally Sound Farming Products and Marketing, Dan Kook University, Cheonan/ Korea, PP 1-24
Jung,J.Y, Sohn,S.M and Kim,Y.H. (2001) How to let citizen involve in CSA Movement and Organic Farming. Proceeding of Symposium for Environmentally Sound Farming Products and Marketing, Dan Kook University, Cheonan/ Korea, PP 105-114
Sohn,S.M. et al (2001) Life and Environment. Academy for Life and Environment, Seoul/ Korea, Pages 257
Sohn,S.M. et al (2001) Environmentally Sound Vegetable Cultivation. Chungnam Rural Development Administration. Daejeon/ Korea. Pages 207
Sohn,S.M. (2001) Situation of European Organic Agriculture and its Principle ans Skills with special regard to Germany. Proceeding of Technics and Prospect of Environmentally Sound Agriculture. Symposium(28 Sept. 2001) organized by Korean Society of Crop Sciences at Daeho Center for Farmer's Education and Welfare, PP34-58
Sohn,S.M. and Jung,J.Y. (2001) Government Policy, Implementation, Certification for Organic Farming in Korea, Proceedings of the 5th IFOAM-Asia Scientific Conference, PP54-57, China Chinese Academy of Agricultural Sciences, IFOAM-Asia, 31 Oct - 4 Nov 2001, Hangzhou
Sohn,S.M. et al (2001) Practical Tips for Environmentally Sound Agriculture. Korean Organic Farmer's Association. Namkyung Publisher. Seoul/ Korea. Pages 291
Sohn,S.M. (2001) Model Design of Environmentally sound Eco-village in Asan Sanjeoung. Chungnam Advisory Center for Agricultural Management, Pages 166
Sohn,S.M. (2001) Principles and Skills of Organic Crop Production with Special Regards to Germany. Korean Journal of Organic Agriculture 9(4):71-93
Sohn,S.M., Lim,K.S. and Kim,Y.H. (2001) Yield of Rice, Analysis of Economics and Environmental Impact in Duck-Paddy Rice. Korean Journal of Organic Agriculture 9(3):45-71
Sohn,S.M. (2002) Principles and Skills of Organic Crop Production. In "Modern Agricultural Technology", Korea Advanced Farmer Association. Seoul/ Korea, Pages 176
Sohn,S.M. (2002) Major Skills, Situation of Organic Farming and its Education and Research in the Future. PP436-463, In "Systematization of R & D in Agriculture and its Competition in the Future". Proceeding of 2002 Agricultural Sciences Symposium, Federation of Korean Agricultural Sciences, Pages 484
Sohn,S.M. (2002) Current Situation of Organic Agriculture in Europe and Major Contents of International Organic Food Guidelines. Seminar Proceeding for the Development of Organic Farming in Youngcheon/ Korea, PP33-48
Sohn,S.M. et al (2002) Development of Environmentally Sound Agriculture Program for Cheju Islands. Cheju Province & Cheju National University/ Korea, Feb 2002, pages 278
Sohn,S.M. (2002) Organic Agriculture in Europe and Major Contents of Organic Food Guidelines. Proceeding for the Development of Organic Farming and New Technology, Kyungju Extension Office, Korean Organic Farmer's Association. PP33-48
Sohn,S.M. (2002) Principle and Skills of Organic Farming. Proceedings of Green Tourism Workshop. Korean Advanced Farmers Association. PP11-28, 16 April 2002.
Sohn, S.M. (2002) Main Principles and Practical Technics of Revised Regulation of Korean Organic Farming and Relevant Principles of Advanced Organic Farming in Oversea. Seminar Proceeding of Medicinal Crop Society. PP26-42. held in New Material Institute, Kyungbuk Agricultural Technology Center, 29 May 2002
Sohn,S.M. (2002) Standards, Certification, Advisory Service and Education of Organic Agriculture in Germany. Korean Journal of Organic Agriculture 10(1):1-18
Sohn,S.M. (2002) Situation of Korean Organic Farming and its Education and Research in the Future. Korean Journal of Organic Agriculture 10(2):67-83
Sohn,S.M (2002) Agronomic Effect of High Quality Compost Mixed with Brown Seaweed for Environmentally Benign Organic Farming. Korean Journal of Organic Agriculture. 10(2):95-109
Sohn,S.M. et al (2002) Development Plan for Environmental Agriculture in Jeju Province. Pages 278
Ryu,S.N., Sohn,S.M., Park,M.E. (2002) Environmental Agriculture. University Press of Korean Air & Correspondence. Seoul/ Korea, Pages 447
Sohn,S.M. (2002) Conservation of Ecosystem and Environmentally Sound Agriculture. Consumer Education Book Series. MAF, Pages 79-94
Sohn,S.M. (2002) Need of Sustainable Agriculture. Chungbuk Development Institute. Pages 1-22
Sohn,S.M. (2002) Organic Farming in European Countries and Main Principles of Organic Agriculture. Green Tourism College Book Series II, Pages 11-28
Sohn.S.M (2002) European Organic Farming and Main Principles of Organic Agriculture. In "Marketing of Korean Organic Products", AFMC, Pages 148
Sohn,S.M. (2002) Comparative Agricultural Terms and Biological Names between South and North Korea. Rural Development Administration, Suwon / Korea, Pages 1331
Sohn,S.M. et al (2002) Consumer Booklet for Organic Food. Ministry of Agriculture & Forestry. Seoul / Korea, Pages 94
Sohn,S.M. et al (2002) Green Tourism and Organic Agriculture. Chungbuk Province. Pages 53
Sohn,S.M. (2002) Inspection management for Environmental Agriculture. Suweon, Korea. Pages 148
Sohn,S.M. (2002) Necessity, Constraints, Contents and Enactment Procedure of Basic Standard for Organic Rice Cultivation. In: Proceeding of RDA/ARNOA International Conference on "Development of Basic Standard for Organic Rice Cultivation", 12-15th November 2002, RDA and Dankook University, Korea. PP 17-34
Sohn,S.M. (2002) International Movements of Organic Agriculture and Major Principles and Skills of Organic Farming. Gangjin International Symposium, 15th November 2002. PP 11-37
Kim,H.M. and Sohn.S.M. (2002) Development of Basic Standards for Organic Rice Cultivation. Suweon/ Korea, Pages 306.
Sohn,S.M. et al (2002) Rural-City Exchange Program. Korean Advanced Farmers Association, Pages 261
Sohn,S.M. (2002) The Current Situation of Organic Farming in European Countries and the Principles of Organic Farming in Codex Guidelines. Doorae Institute Journal of Environmentally Sound Agriculture 4(2):71-93
Sohn,S.M. et al (2003) Information on Advanced Agricultural Techniques. Korean Advanced Farmers Association, Seoul/ Korea, Pages 349
Sohn,S.M. et al (2003) Environmentally Sound Rice Cultivation. Korean Advanced Farmers Association, Seoul/ Korea, Pages 159
Sohn,S.M. et al (2003) Organic Crop Cultivation based on Codex Guidelines. Korean Advanced Farmers Association, Seoul/ Korea, Pages 155
Sohn,S.M. (2003) Organic Farming in European countries and Standard for Organic Crop Production. In: Training Course on Certification and Marketing for Environmentally Sound Farming Products. Agriculture and Fishery Product Marketing Agency. 28-30 April 2003. Pages 91-121
Sohn,S.M. et al (2003) Information on Technology and Policy in National and International Organic Agriculture. Rural Development Administration. Suwon / Korea, Pages 403
Sohn,S.M. (2003) Production, Marketing and Promotion Policy of Environmentally Sound Agriculture. In "Workshop Proceeding for Staffs of Agricultural Marketing Center and Officers of Agricultural Marketing Division". Marketing Agency for Agriculture and Fishery Products. PP 27-37
Sohn,S.M. (2003) Effects of Functional Compost on Production, Yield and Quality of Chinese Cabbage. 2002 Final Report of Mutual Consortium between Industry, University and Institute. Pages 174
Sohn,S.M. (2003) Environmentally Sound Agriculture in Advanced Countries and Its Key Skills. In : Textbook for Expert Training Course on Rural Tourism. Ministry of Agriculture and Forestry. Pages 336
Sohn,S.M. (2003) Organic Farming in Europe and Major Skills of Internationally recognized Organic Agriculture. Environmentally Sound Agriculture for 2003, PP2-19.
Sohn,S,M. (2003) Necessity, Contents and Enactment Procedure of Basic Standard for Organic Rice Cultivation. Korean Journal of Environmentally Sound Agriculture 5(1):75-91
Sohn,S.M. et al (2003) Introduction to Green Tourism. Korean Advanced Farmer's Association. Pages 191
Sohn,S.M. (2003) Organic Farming in European Countries. In : Encyclopedia of Environmentally Sound Agriculture. Agriculture and Horticulture, PP 107-120
Sohn,S.M. et al (2003) Textbook of Environmentally Benign Agriculture. Jeonnam National University. Pages 532
Sohn,S.M. et al (2003) Consumer Education for Environmentally Benign Agriculture. MAF. Pages 83
Sohn,S.M. (2003) Training Book for Green Tourism, Korea Advanced Farmer's Association, Pages 123
Sohn,S.M. and S.D.Kim (2003) Development of Basic Standards for Organic Rice Cultivation. Proceeding of 2nd RDA/ARNOA International Conference. Pages 203
Sohn,S.M. et al (2003) Comparative Agricultural Terms between South and North Korea. Seoul National University Press, Pages 915
Sohn,S.M. (2003) Introduction of Organic Agriculture. Pages 369
Shrestha,K., Kim,E.J. and Sohn,S.M. (2003) Use of Neem as Natural Pesticide for Organic Agriculture in Tropical Asian Countries. Journal of Korean Society of International Agriculture 15(4): 241-257
Sohn,S.M (2004) Development Strategy of Certification Body for Organic Food. Agronomy and Horticulture 2004(1):152-153
Sohn,S.M. (2004) Soil Fertility for Korean Organic Agriculture. Agronomy and Horticulture 2004(1):152-153
Sohn,S.M. (2004) Final Report on Environmental Benign Agriculture. Gangjin County, Pages 254, 15th Jan 2004.
Sohn,S.M. et al (2004) Organic Rice Cultivation. Jeonnam Province, Pages 179
Sohn,S.M. et al (2004) Techniques of Environmental Benign Organic Agriculture, PP1-14, In "Textbook of Environmental Benign Agriculture". Pages 533, Jeonnam Province & Jeonnam National University, 15th March 2004

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