Effects of Reclaimed Wastewater and Waste Nutrient Solution Irrigation on Seedling Growth of Chinese Cabbage

하수처리수 및 폐양액의 재이용이 배추 유묘 생장에 미치는 영향

  • Hong, Ki-Chan (College of Agriculture and Life Sciences, Kangwon National University) ;
  • Choi, Bong-Su (College of Agriculture and Life Sciences, Kangwon National University) ;
  • Lim, Kyoung-Jae (College of Agriculture and Life Sciences, Kangwon National University) ;
  • Won, Jae-Hee (Gangwondo Agricultural Research and Extension Services) ;
  • Jeon, Shin-Jae (Gangwondo Agricultural Research and Extension Services) ;
  • Hur, Seung-Oh (National Academy of Agricultural Science) ;
  • Ha, Sang-Keun (National Academy of Agricultural Science) ;
  • Kim, Nam-Won (Korea Institute of Construction Technology) ;
  • Yang, Jae-E (College of Agriculture and Life Sciences, Kangwon National University) ;
  • Ok, Yong-Sik (College of Agriculture and Life Sciences, Kangwon National University)
  • Published : 2009.06.30


Water shortages are expected to be a major impact of climate change. This study examined the growth of Chinese cabbage seedling using reclaimed wastewater and waste nutrient solution as alternative irrigation resources. Generally, the concentration of nutrients, such as $K^+$, $NH_4^+$, $Mg^{2+}$, $Ca^{2+}$, $Cl^-$,$NO_3^-$, $PO_4^-$ and $SO_4^{2-}$, in waste nutrient solution was higher than that in wastewater. However, Chinese cabbage seedling irrigated with wastewater was supplied a higher concentration of $Na^+$ and $Cl^-$ than waste nutrient solution. The growth of Chinese cabbage seedling irrigated with waste nutrient solution was similar or higher than those irrigated with groundwater as control, while the growth of those irrigated with wastewater was similar to those irrigated with groundwater. The total nitrogen uptake in Chinese cabbage seedling irrigated with groundwater, waste nutrient solution from organic and inorganic hydroponic cultures, and wastewater was 5.47, 10.02, 5.20, and 4.59 mg/plant, respectively. The nitrogen uptake of Chinese cabbage seedling irrigated with waste nutrient solution from organic hydroponic substrates in a 50% lower dose than recommended was 8.34 mg/plant, which is higher than that of the cabbage irrigated with groundwater. Overall, the results suggest that waste nutrient solution and wastewater can be used as alternate water resources, and can allow a reduction in the amount of fertilizer needed to raise Chinese cabbage seedling.


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