Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effects of Coir Substrate Application and Substrate Volume on the Growth and Yields of Strawberry in a Hydroponically Cultured System

딸기 수경재배에 코이어 배지 적용과 근권부 배지 용량이 생육 및 수확량에 미치는 영향

  • Hwang, Jeongsu (Division of Agricultural Engineering, National Institute of Agricultural Sciences, RDA) ;
  • Yun, Sungwook (Division of Agricultural Engineering, National Institute of Agricultural Sciences, RDA) ;
  • Kwon, Jinkyung (Division of Agricultural Engineering, National Institute of Agricultural Sciences, RDA) ;
  • Park, Minjung (Division of Agricultural Engineering, National Institute of Agricultural Sciences, RDA) ;
  • Lee, Dongsoo (National Institute of Horticultural & Herbal Science, RDA) ;
  • Lee, Heeju (National Institute of Horticultural & Herbal Science, RDA) ;
  • Lee, Siyoung (Division of Agricultural Engineering, National Institute of Agricultural Sciences, RDA) ;
  • Lee, Sanggyu (Division of Agricultural Engineering, National Institute of Agricultural Sciences, RDA) ;
  • Hong, Youngsin (Division of Agricultural Engineering, National Institute of Agricultural Sciences, RDA)
  • 황정수 (국립농업과학원 농업공학부) ;
  • 윤성욱 (국립농업과학원 농업공학부) ;
  • 권진경 (국립농업과학원 농업공학부) ;
  • 박민정 (국립농업과학원 농업공학부) ;
  • 이동수 (국립원예특작과학원 채소과) ;
  • 이희주 (국립원예특작과학원 채소과) ;
  • 이시영 (국립농업과학원 농업공학부) ;
  • 이상규 (국립농업과학원 농업공학부) ;
  • 홍영신 (국립농업과학원 농업공학부)
  • Received : 2022.03.10
  • Accepted : 2022.06.28
  • Published : 2022.07.31
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Abstract

This study was conducted to examine an alternative cultivating method that uses coir substrates in a hydroponically cultured system. Three treatment conditions were applied with one-layer substrate (10 cm height) with a coir chip and dust ratio of 5:5 (Treatment A), two-layer coir substrate (20 cm height) with a coir chip and dust ratio of 5:5 (Treatment B), one-layer coir substrate (15 cm height) with a coir chip and dust ratio of 7:3 (Treatment C). The control condition was a plastic container filled with a coir chip and dust ratio of 5:5. Various criteria were measured and compared between the treatments and the control. The yield of strawberry was smaller in the control than in the treatments. No significant difference in growth characteristic was found in the height treatments of the coir substrates. The net photosynthetic rate of the treatments was 14.68-15.76 µmol CO2·m-2·s-1. This does not show a statistically significant difference. The root activity was better in treatment B and C than in treatment A and the control. The length and width of leaves were measured as 4.04-4.13 cm and 3.26-3.34 cm. These results are not statistically significant. The leaf length and width ratio was 1.27 in the control and 1.24 in the treatments. The findings show that no statistically significant benefit was found when utilizing coir substrates with different height treatments in the hydroponic culture system. However, the harvested fruit per plant weights 72.38 g in treatment A and 48.69 g in treatment C. The number of harvested fruit was least in treatment C in which a coir chip and dust ratio of 7:3 was applied. Therefore, further research is needed to examine how the chip and dust ratio in coir substrate affects growth characteristics.

본 연구는 딸기재배시 전용 고설베드를 사용하지 않고, 일반 수경재배 시설을 이용하여 코이어 배지를 베드에 올려 재배하는 방법을 구명하기 위해서 실시하였다. 토마토나 파프리카를 재배하는 시설재배 베드에 코이어의 칩과 더스트 비율이 5:5인 코이어 배지 1겹처리(높이 10cm; A), 2겹으로 쌓은 처리(높이 20cm; B), 코이어의 칩과 더스트 비율이 7:3인 코이어 배지 1겹처리(높이 15cm; C)와 대조구로는 딸기 전용 플라스틱 화분(Control) 처리구로 하였다. 생육특성은 코이어 배지 높이별로는 유의성이 없었고, 플라스틱 화분에서 재배한 것이 작은 경향을 보였다. 딸기 잎의 광합성율은 처리별로 14.68-15.76µmol CO2·m-2·s-1로 통계적인 유의성은 없었고, 뿌리의 근활력은 배지 용량이 컸던 C와 B 처리구가 A 처리구와 대조구보다는 높은 것으로 나타났다. 과장과 과폭은 각각4.04-4.13cm와 3.26-3.34cm로 통계적인 유의성이 없었고, 과장과 과폭 비율은 대조구가 1.27로 A-C 처리구의 1.23-1.24보다 뾰쪽한 형태이었다. 딸기 1주당 수확과수는 C 처리구가 4.4개로 가장 적었고, 대조구, A, B 처리구의 6.2-6.5개로 처리간 유의성은 없었다. 상품수량 과수는 A 처리구가 74개로 가장 많았고, C 처리구가 53개로 가장 적었으며, 1주당 수량은 A 처리구가 72.38g으로 가장 컸고, C 처리구가 48.69g으로 가장 작았다. 이와 같은 결과는 딸기재배 시 전용재배 시설을 설치하지 않고, 기존의 토마토나 파프리카 수경재배 시설에서 코이어 배지를 활용하여 딸기재배를 할 수 있다는 것을 나타낸다. 다만 C 처리구에서 수량이 감소한 것은 칩과 더스트 비율이 7:3으로, A와 B 처리구의 칩과 더스트 비율이 5:5와 다른 것이 원인으로 추정되며 칩과 더스트 비율에 따른 추가 연구가 필요하다.

Keywords

Acknowledgement

본 연구는 2022년도 농촌진흥청 국립농업과학원 전문연구원 과정 지원사업에 의해 이루어진 것임.

References

  1. An C.G., Y.H. Hwang, H.S. Yoon, G.M. Shon, C.S. Lim, J.L. Cho, and B.R. Jeong 2009, Effects of irrigation amount in rockwool and cocopeat substrates on growth and fruiting of sweet pepper during fruiting period. Kor J Hortic Sci Technol 27:233-238. (in Korean)
  2. An C.G., Y.H. Hwang, J.U. An, H.S. Yoon, Y.H. Chang, G.M. Shon, S.J. Hwang, K.S. Kim, and H.C. Rhee 2012, Effects of irrigation methods for reducing drainage on growth and yield of paprika (capsicum annuum coletti) in rockwool and cocopeat culture. J Bio Env Con 21:228-235. (in Korean)
  3. Berridge M.V., P.M. Herst, and A.S. Tan 2005, Tetrazolium dyes as tools in cell biology:new insights into their cellular reduction. Biotechnol Ann Rev 11:127-152. doi:10.1016/S1387-2656(05)11004-7
  4. Choi S.H., S.H. Kim, G.L. Choi, H.J. Jeong, M.Y. Lim, D.Y. Kim, and S.Y. Lee 2021, Growth and quality of the strawberry (Fragaria annanassa Dutch. cvs. 'Sulhyang') as affected by complex nutrient solution supplying control system using integrated solar irradiance and substrate moisture contents in hydroponics. J Bio Env Con 30:367-376. (in Korean) doi:10.12791/KSBEC.2021.30.4.367
  5. Hong Y., J. Lee, J. Baek, S. Lee, and S. Chung 2021, Growth characteristics and yields according to EC concentrations and substrates in paprika. J Environ Sci Int 30:605-612. (in Korean) doi:10.5322/JESI.2021.30.8.605
  6. Jeong B.R. 2000, Current status and perspective of horticultural medium reuse. Kor J Hortic Sci Technol 18:876-883. (in Korean)
  7. Jun H.J., J.G. Hwang, M.J. Son, M.H. Choi, and M.S. Cho 2006a, Effect of substrates on the growth, yield and fruit quality of strawberry in elevated hydroponic system. J Bio Env Con 15:317-321. (in Korean)
  8. Jun H.J., J.G. Hwang, I.G. Kim, M.J. Son, K.M. Lee, and Y. Udagawa 2006b, Effect of double layered substrates on the growth, yield and fruit quality of strawberry in elevated hydroponic system. Korean J Hortic Sci Technol 24:157-161. (in Korean)
  9. Korea Agro-Fisheries & Food Trade Corporation (KAFFTC), Ministry of Agriculture, Food and Rural Affairs (MAFRA) 2021, 2020 Agriculture, Forestry and Fisheries Import & Export & Statistics. Naju, Korea. (in Korean)
  10. Korea Rural Economic Institute (KREI) 2020, Forecast and Status of Major Agricultural Products in 2020. KREI, Naju, Korea, p 8. (in Korean)
  11. Lee J., H. Lee, S. Lee, G. Kim, K. Han, J. Baek, S. Rho, and Y. Hong 2019, Effects of environmental substrate composition on the growth and yields of hydroponically grown tomato. J Environ Sci Int 28:729-735. (in Korean) doi:10.5322/JESI.2019.28.729
  12. Lee S.G., E.Y. Choi, G.H. Lim, and K.Y. Choi 2018, Yield and inorganic ion contents in drained solution by different substrate for hydroponically grown strawberry. Korean J Hortic Sci Technol 36:337-349. (in Korean) doi:10.12972/kjhst.20180033
  13. Lee S.Y., and Y.C. Kim 2019, Water treatment for closed hydroponic systems. J Korean Soc Environ Eng 41:501-513. (in Korean) doi:10.4491/KSEE.2019.41.9.501
  14. Lee T.S., J.G Kim, S.H. Park, J.H. Lee, and J.P. Moon 2021, Analysis on the effect of the crown heating system and warm nutrient supply on energy usage in greenhouse, strawberry growth and production. J Bio Env Con 30:271-277. (in Korean) doi:10.12791/KSBEC.2021.30.4.271
  15. Ministry of Agriculture, Food and Rural Affairs (MAFRA) 2021, Greenhouse status for the vegetable grown in facilities and the vegetable productions in 2020. MAFRA, Sejong, Korea. (in Korean)
  16. Na W.H. 2001, High productive culture for strawberry. Osung, Seoul, Korea, pp 77-78.
  17. Park J.M., and S.D. Oh 2000, Effect of root zone temperature on growth of shoot and root, and physiological responses of apple trees (Malus domestica Borkh.). Korean J Hortic Sci Technol 41:177-181. (in Korean)
  18. Park J.W., Y.S. Ha, K.D. Kim, D.H. Park, K.M. Lee, H.J. Jun, S.G. Kwon, W.S. Choi, and S.W. Chung 2010, Modeling of medium temperature drops of the elevated-bench hydroponics for strawberry cultivation during low temperature season. J Bio Env Con 19:123-129. (in Korean)
  19. Yoon H.S., Y.H. Hwang, C.K. An, H.J. Hwang, and C.W. Rho 2004, Growth and fruit yield of strawberry grown in raised bed culture using growing media with lower cost. Korean J Hortic Sci Technol 22:266-269. (in Korean)