Assessment of Nitrogen Impaction on Watershed by Rice Cultivation

• Published in: Korean Journal of Environmental Agriculture Vol. 24; no. 3
• Main Authors: Roh, K.A. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea), E-mail: karoh@rda.go.kr, Kim, M.K. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea), Lee, B.M. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea), Lee, N.J. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea), Seo, M.C. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea), Koh, M.H. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea)
• Format: Journal Article
• Language: Korean
• Published: 01.09.2005
• Subjects: AZOTE; ENVIRONMENTAL IMPACT; IMPACT SUR L'ENVIRONNEMENT; IMPACTO AMBIENTAL; IRRIGATION; NITROGEN; NITROGENO; NUTRIENTES; NUTRIENTS; Nutrients input; POLLUTION DE L'EAU; POLUCION DEL AGUA; Rice paddy; RIEGO; SUBSTANCE NUTRITIVE; WATER POLLUTION
• ISSN: 1225-3537

It is important to understand and evaluate the environmental impacts of rice cultivation for developing environmentally-friendly agriculture because rice is main crop in Korea and rice cultivation have both functions of water pollution and purification with environmental and cultivation conditions. This paper presents the evaluation of nitrogen impact by rice cultivation on water system. A simple protocol was proposed to assess the potential amount of nitrogen outflow from paddy field and most of parameters affect on the nitrogen outflow from paddy field such as the amount of fertilizer application, water balance, the quality and quantity of irrigation water, soil properties, nitrogen turnover in the soil and cultivation method were considered.