Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Appropriate Pretreatment Method of Coir Bag in Coir Culture

코이어 재배시 적정 전처리 방법 구명

  • Received : 2012.09.04
  • Accepted : 2012.09.14
  • Published : 2012.09.30
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Abstract

We examined pretreatment methods eliminating potassium and sodium efficiently for coir bag used in hydroponics by analyzing drainage coming from coir bags. In the first experiment we investigated for six coir bags with the high market shares. The three types of pretreatment were washing coir bags with only water for 7 days (W7S0), washing with water for 4 days and further with nutrient solution for 3 days (W4S3), and washing with only nutrient solution for 7 days (W0S7). In the second experiment we tested reproducibility of the experiment results for Bio Grow and coco Mix among six coir bags used in the first experiment to verify the results. As a result, the best pretreatments for the pH stabilization were W4S3 and W0S7. The EC value of the drainage was stabilized to less than 1.0 that is the same as EC of the supply solution on the fourth day in all treatments. The nutrients of the drainage in W7S0 was stabilized in 3~4 days but calcium and magnesium were depleted. We assessed that washing longer than 4 days was waste of water. The stabilization of coir bags in W0S7 was similar to it in W4S3, but washing with the nutrient solution for 7 days seemed to be uneconomical. The reproducibility experiment for two coir bags ensured the results in the first experiment. Therefore, the pretreatment method, which is the most simple to implement and economic, seems to wash with water for 3 days and then with the nutrient solution for 1 day before planting on coir bag.

시판중인 여섯 가지 종류의 코이어 자루배지에 세 가지 전처리 방법을 실시하고, 처리 과정에서 생성되는 배액을 분석함으로써 경제적이며 간단하게 칼륨과 나트륨을 제거할 수 있는 전처리 방법을 구명하고자 2차에 걸쳐 실험을 수행했다. 1차 실험에서는 시판중인 코이어 자루 중에서 전처리가 되었고, 농가에 많이 보급된 6가지 배지를 선정하여, 7일간 물로 씻는 처리(W7S0), 물로 3일간 씻고 배양액으로 4일간 씻는 처리(W4S3), 배양액으로 7일간 씻는 처리(W0S7)의 세 가지 전처리를 했다. 2차 실험에서는 Bio Grow와 coco Mix 배지를 대상으로 1차 실험과 동일한 방법으로 재현성을 확인했다. 실험결과 pH의 안정화에 좋은 전처리 방법은 W4S3 처리와 W0S7 처리였다. EC는 세 처리 모두에서 4일차가 되면 공급 EC와 같은 1.0 이하로 안정되었다. 배액의 이온은 W7S0에서는 처리 3~4일 이후에 안정화 되지만 대부분의 이온들이 용탈되어 Ca와 Mg의 부족이 발생했고, 4일 이상을 씻는 것은 물의 낭비로 판단되었다. W0S7에서는 배지의 안정화는 W4S3 처리와 유사했으나 배양액으로 7일간 씻어주는 것은 경제적으로 손실인 것으로 사료된다. 두 가지 배지를 사용한 재현성 실험에서도 비슷한 결과를 보였다. 따라서 농가에서 사용하기에 가장 간단하고 경제적인 전처리 방법은 물로 3일간 씻어준 후 배양액으로 1일간 포수시킨 후에 정식하는 방법으로 사료된다.

Keywords

References

  1. Abad, M., P. Noguera, R. Puchades, A. Maquieira, and V. Noguera. 2002. Physico-chemical and chemical properities of some coconut coir dusts for use as a peat substitute for container ornamental plants. Bioresource Technology 82:241-245. https://doi.org/10.1016/S0960-8524(01)00189-4
  2. Choi, J.M., H.J. Chung, and J.S. Choi. 2000. Physicochemical properties of organic and inorganic materials used as container media. Kor. J. Hort. Sci. Technol. 18:529-534.
  3. Conrad, K. and H.C.B. Hansen. 2007. Sorption of zinc and lead on coir. Bioresource Technology 98:89-97. https://doi.org/10.1016/j.biortech.2005.11.018
  4. Crommentuijn, T., A Doornekamp, and C.A.M. Van Gestel. 1997. Bioavailability and ecological effects of cadmium on Folsomia candida (Willem) in an artificial soil substrate as influenced by pH and organic matter. Applied Soil Ecology 5:261-271. https://doi.org/10.1016/S0929-1393(97)00003-6
  5. Evans, M.R., S. Konduru, and R.H. Stamps. 1996. Source variation in physical and chemical properties of coconut coir dust. HortScience 6:965-967.
  6. Evans, M.R. and R.H. Stamps. 1996. Growth of bedding plants in sphagnum peat-and coir dust-based substrates. Journal of Environmental Horticulture 14:187-190
  7. Fascella, G. and G.V. Zizzo. 2005. Effect of growing media on yield and quality of soilles cultivated rose. Acta Horticulturae 697:133-138.
  8. Handreck, K.A. 1993. Properties of coir dust, and its use in the formulation of soilless potting media. Communications in Soil Science and Plant Analysis. Rome, Italy.
  9. Irungu, A.P.M., P.K. Chege, D.T. Moabi, and T. Yamashita. 2007. Effect of coconut coir media on bitter gourdn (Momordica charantia L.) growth and yield in an energy-saving hydroponic system. Journal of Tropical Agriculture 51:177-182.
  10. Kipp, J. A., W. Wever, and C. Kreij. 2000. International substrate manual, elsevier international business information. PO Box 4, 7000 BA, Doetinchem, The Netherlands.
  11. Konduru, S., M.R. Evans, and R.H. Stamps. 1999. Coconut husk and processing effect on chemical and physical properties of coconut coir dust. HortScience 34:88-90.
  12. Koyama, S., H. Urayama, K.M.P.D. Karunaratne, and T. Yamashita. 2009. Effects of coir application on soil properties and cucumber production as a reuse model of organic medium used in soilless culture. J. Tropical Agriculture and Development 53: 7-13.
  13. Lee, Y.H. 2007. Improvement of physicochemical properties for sound coconut coir substrates for hydroponics. MS Diss., The University of Seoul, Seoul.
  14. Martinez, F.X., N. Sepo, and J. Valero. 1997. Physical and physiochemical properties of peat-coir mixes and the effect of clay-material addition. Acta Horticulturae 450:39-46.
  15. Means, J.C. 1980. Sorption of polynuclear aromatic hydrocarbons by sediments and soils. Environmental Science and Technology 12:1524-1528.
  16. Meerow, A.W. 1994. Growth of two sub-tropical ornamental plants using coir (coconut mesocarp pith) as a peat substitute. HortScience 29:1484-1486.
  17. Noguera, P., M. Abad, R. Puchades, A. Maquieira, and V. Noguera. 2003. Ingluences of particle size on physical and chemical properties of coconut coir dust as container medium. Communications in Soil Science and Plant Analysis 34:593-605. https://doi.org/10.1081/CSS-120017842
  18. Prasad, M. 1997. Physical, chemical and biological properties of coir dust. Acta Horticulturae 450:21-30.
  19. Raviv, M., J.H. Lieth, D.W. Burger, and R. Wallach. 2001. Optimization of transpiration and potential growth rates of Kardinal rose with respect to root zoon physical poeperties. J. Am. Soc. Hort. Sci. 126:638-643.
  20. Reynolds, S.G. 1973. Preliminary studies in Western Samoa using various parts of the coconut palm as growing media. Acta Horticulturae 37:1983-1991.
  21. Rincon, L., A. Perez, A. Abadia, and C. Pellicer. 2005. Yield, water use and nutrient uptake of a tomato crop grown on coconut coir dust. Acta Horticulturae 697: 73-79.
  22. Wright, R.D. and J.F. Browder. 2005. Chipped pine logs: A potential substrate for greenhouse and nursery crops. HortScience 40:1513-1515.
  23. Rural Development Adminstration (RDA). 2008. Hydroponic culture dissemination present status 2008. Suwon, Korea (in Korean).
  24. Smith, C. 1995. Coir: A viable alternative to peat for potting. The Horticulturist 4:12-28.
  25. Vaughn, S.F., A.D. Nathan, A.B. Mark, and L.E. Roque. 2010. Lesquerella press cake as an organic fertilizer for greenhouse tomatoes. Industrial Crops and Products 32:164-168. https://doi.org/10.1016/j.indcrop.2010.04.008
  26. Von Doren, J.J.M. 2001. Coir pith potential In Proc. Int. Peat Symposium, Peat in Horticulture, peat and it's alternatives in growing media. Dutch National Committee, International Peat Society, pp. 23-29.
  27. Warncke, P.D. 1986. Analysing greenhouse growth media by the saturation extraction method. Hort- Science 200:223-225.