Comparison on Irrigation Management Methods by Integrated Solar Radiation and Drainage Level Sensor in Rockwool and Coir Bag Culture for Tomato

토마토의 암면과 코이어 자루재배시 일사량제어법과 배액전극제어법에 의한 급액제어 방법 비교

  • Received : 2009.12.22
  • Accepted : 2010.03.22
  • Published : 2010.03.30

Abstract

Irrigation management methods controlled by integrated solar radiation (ISR) or drainage level sensor were evaluated in rockwool or coir bag culture as tomato (Solanum lycopersicum L.) production system. Substrate water content and drainage percentage were more stable in the drainage level sensor method than in the ISR method regardless of substrate type. Total yield and marketable yield were high in the drainage level sensor method, but not between substrates in the same irrigation management method. Sugar content was affected more by the substrate type than irrigation method. The drainage level sensor method was elucidated to be better than the ISR method regardless of substrate type.

토마토를 대상으로 암면과 코이어를 사용한 자루재배에서 일사량제어와 배액전극제어법의 급액제어 능력을 실험한 결과, 배지 종류에 관계없이 일사량제어법에 비해 배액전극제어법에서 배지함수량과 배액량이 안정 적이었다. 총수확량과 상품과량은 배액전극제어법에서 많았으며, 동일한 급액제어 처리 안에서는 배지간 차이는 없었다. 당도는 급액제어 방법의 차이보다는 배지의 종류에 영향을 많이 받았다. 배액전극제어법은 펄라이트뿐만 아니라 암면과 코이어배지에서도 범용적으로 일사량제어법에 비해 유리한 것으로 나타났다.

Keywords

References

  1. An, C.G., Y.H. Hwang, G.M. Shon, C.S. Lim, J.L. Cho, and B.R. Jeong. 2009. Effect of irrigation amount in rockwool and cocopeat substrates on growth and fruiting of sweet pepper during fruiting period. Kor. J. Soc. Hort. Sci. Technol. 27(2):233-228.
  2. Choi, E.Y., Y.B. Lee, and J.Y. Kim. 2001. Determination of total integrated solar radiation range for the optimal absorption by plant in different substrates. Kor. J. Soc. Hort. Sci. 42(3):271-274.
  3. Kim, H.J., and Y.S. Kim. 2004. Evaluation of irrigation system by balance and integrated solar radiation on the fruit quality of muskmelon in closed perlite culture system. J. Kor. Soc. Hort. Sci. 45(3):127-130.
  4. Kim, Y.S. 2003. Possibility of water management in hydroponics by electrical signal. Industrial Science Researches of Sangmyung University 14:1-10.
  5. Roh, M.Y. 1997. Development of irrigation control system based on integrated solar radiation and nutrient solution suitable for closed system in substrate culture of cucumber. PhD. Diss., Univ. of Seoul, Seoul, Korea.
  6. Rural Development Adminstration (RDA). 2008. Hydroponic culture dissemination present status 2008. Suwon, Korea.
  7. Schon, M.K. and M.K. Compton. 1997. Comparison of cucumbers grown in rockwool or perlite at two leaching fractions. Hort-Technology 7:30-33.
  8. Sim, S.Y., S.Y. Lee, S.W. Lee, M.W. Seo, J.W. Lim, S.J. Kim, and Y.S. Kim. 2006. Characteristics of root media moisture in various irrigation control methods for tomato perlite bag culture. Journal of Bio-Environment Control, 15(3):225-230.
  9. Sim, S.Y., S.Y. Lee, S.W. Lee, M.W. Seo, J.W. Lim, S.J. Kim, and Y.S. Kim. 2006. Improvement of water and fertilizer use efficiency by daily last irrigation time for tomato perlite bag culture. Journal of Bio-Environment Control, 15(4):327-334.
  10. Warren, S.L. and T.E. Bilderback. 2004. Irrigation timing: Effect on plant growth, photosynthesis, water-use efficiency and substrate temperature. Acta Hort. 644:29-37.