Survey on Nutrient Removal Potential and Growth State of Water Hyacinth (Eichhornia crassipes) at Seo-Ho.

서호수에서 부레옥잠 생육상태와 영양염류 제거량 조사

  • Kim, Bok-Young (National Institute of Agricultural Science and Technology,RDA) ;
  • Lee, Jong-Sik (National Institute of Agricultural Science and Technology,RDA) ;
  • Kim, Jin-Ho (National Institute of Agricultural Science and Technology,RDA)
  • 김복영 (농업과학기술원 환경관리과) ;
  • 이종식 (농업과학기술원 환경관리과) ;
  • 김진호 (농업과학기술원 환경관리과)
  • Published : 1998.06.30


To find out the effect of water hyacinth(Eichhornia crassipes Solms-Laub) on the control of eutrofication and plant damage with irrigation water contamination, its ability to remove the nutrients such as nitrogen and phosphrus was studied. The overall results are summarized as follow. 1. It was possible to cultivate water hyacinth for 4 month from June to the middle of October in Suwon. 2. The number of plant was increased from 1,320 to 50,600 for 4 months, and total amounts of N, P, K removed from Seo-Ho by water hyacinth were 78.3, 64.2 and 152.4 kg/10a, respectively. 3. EC and $NH_4-N$ contents were lower at water hyacinth treatment than non-treatment and monthly variation of those contents were decreased until August. 4. With the cultivation of water hyacinth in animal waste water in vinyl plastic house, pH, EC, COD and concentrations of $NH_4-N$ and $PO_4-P$ in the water were drastically decreased. 5. Nitrogen contents absorbed from waste water existed in the order of leaf > stem > root but those of phosphorus root > stem > leaf.