Effects of Farming Practice and NO₃-N Contents of Groundwater with Different Locations under Intensive Greenhouse Area
2005
Ko, J.Y. (Yeongnam Agricultural Research Institute, NICS, RDA, Milyang, Republic of Korea), E-mail: [email protected] | Lee, J.S. (Yeongnam Agricultural Research Institute, NICS, RDA, Milyang, Republic of Korea) | Kim, M.T. (National Institute of Crop Science, RDA, Suwon, Republic of Korea) | Kim, C.S. (Yeongnam Agricultural Research Institute, NICS, RDA, Milyang, Republic of Korea) | Kang, U.G. (Yeongnam Agricultural Research Institute, NICS, RDA, Milyang, Republic of Korea) | Kang, H.W. (Rural Development Administration, Suwon, Republic of Korea)
To investigate effects of farming practice and NO₃-N contents of groundwater in intensive horticultural greenhouse area of Yeongnam province, the groundwater samples from 1,370 sites were collected and analyzed. In addition, cultivation year, crops, desalinization methods, amounts of manure application, tube well depth and soil texture with clay contents were observed. Of the investigated sites, 19.7% of shallow groundwater and 1.3% of confined groundwater were exceeded over 10 mg/ℓ as the NO₃-N drinking limit value, respectively.
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