Journal of agriculture & life science (농업생명과학연구)

Institute of Agriculture & Life Science, Gyeongsang National University (경상대학교 농업생명과학연구원)
권호 표지

Appropriate Sensor Height in an Irrigation Management System by Drainage Level Sensor for Perlite Bag Culture of Cucumber and Paprika

오이와 착색단고추의 펄라이트자루재배시 배액전극제어법에서의 적정 배액전극높이 구명

  • Received : 2010.09.09
  • Accepted : 2011.02.22
  • Published : 2011.02.28
⟨ Previous Next ⟩

Abstract

An experiment was conducted to test different heights of drainage level sensors in an irrigation management system for perlite bag culture of cucumber and paprika. The sensors were placed at 4, 8, 12, and 16 mm from the bottom of the container. Both cucumber and paprika did not show any significant difference in growth and yield among the treatments. However, placing the sensor at 4 mm seemed to be the best in order to prevent over-supply of water at the beginning of the day.

오이와 착색단고추를 대상으로 펄라이트 자루재배의 급액시스템으로 배액전극제어법을 적용할 경우 적정 전극높이를 구명하기 위하여 실험을 수행했다. 전극높이를 바닥에서 4, 8, 12, 16mm로 처리하여 실험한 결과, 오이와 착색단고추 모두에서 생육과 수량은 처리간 차이가 없었다. 그러나 일중 급액개시시기의 과다관수를 방지하기 위해서는 4mm가 가장 적합할 것으로 사료되었다.

Keywords

References

  1. Albaho, M. S. and J. L. Green. 2004. Comparative study on the effect of two greenhouse production system on selected tomato cultivars. Acta Hort. 648: 91-97.
  2. Baas, R. and N. A. Straver. 2001. In situ monitoring water content and electrical conductivity in soilless media using a frequency-domain sensor. Acta Hort. 562: 295-303.
  3. Charpentier, S., V. Guerin, P. Morel, and R. Tawegoum. 2004. Measuring water content and electrical conductivity in substrates with TDR (TIME DOMAIN REFLECTOMETRY). Acta Hort. 644: 283-290.
  4. Choi, E. Y., Lee, Y. B. 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: 271-274.
  5. Cohen, M., R. Save, C. Biel, and O. Marfa. 1995. Simultaneous measurements of water stress with LVDT sensors and electrotensiometers: application in pepper plants grown in two types of perlites. Acta Hort. 421: 193-200.
  6. De Graaf, R. 1988. Automation of the water supply of glasshouse crops by means of calculating the transpiration and measuring the amount of drainage water. Acta Hort. 229: 219-231.
  7. Da Silva, F. F., R. Wallach, and Y. Chen. 1998. Measuring Water Contentof Horticultural Substrates Using Time-Domain Reflectometry. Acta Hort. 421: 165-169.
  8. Heiskanen, J. and J. Laitinen. 1992. A measurement system for determining temperature, water potential and aeration of growth medium. Silva Fennica 26: 27-35.
  9. Kim, Y. S. 2004. Investigation on the water detecting method for perlite medium in the hydroponics. Industrial Science Researches of Sangmyung University 15: 1-8.
  10. Kim, Y. S. 2003. Possibility of water management in hydroponics by electrical signal. Industrial Science Researches of Sangmyung University 14: 1-10.
  11. 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: 127-130.
  12. Lapton, V. T., A. Artetxe, A. Beunza, R. Cerveto, and J. Majada. 2001. Irrigation control on substrates with the LAPTOMETRON, A new tensiometer. Acta Hort. 559: 655-662.
  13. Murray, J. D., J. D. Lea-Cox, and D. S Ross. 2004. Time domain reflectometry accurately monitors and controls irrigation water applications in soilless substrates. Acta Hort. 633: 75-82.
  14. Rouphael, Y., G. Colla, M. Cardarelli, S. Fanasca, A. Salerno, C. M. Rivera, A. Rea, and F. Karam. 2005. Water use efficiency of greenhouse summer squash in relation to the method of culture: Soil VS. soilless. Acta Hort. 697: 81-86.
  15. 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: 225-230.