Effect of Irrigation volume on Ions Content in Root Zone in Soilless Culture of Tomato Plant Using Coir Substrate

Gyeong Lee Choi; Kyung Hwan Yeo; Su Hyun Choi; Ho Jeong Jeong; Seung Yu Kim; Seong Chan Lee; Nam Jun Kang

doi:10.12791/KSBEC.2018.27.1.1

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2018 Vol.27, Issue 1 Next Page

Effect of Irrigation volume on Ions Content in Root Zone in Soilless Culture of Tomato Plant Using Coir Substrate 코이어 배지 이용 토마토 장기 수경재배시 급액량이 근권부 무기이온에 미치는 영향

31 January 2018. pp. 1-6

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Abstract

Also, t-cincreaseisdecreasein order In hydroponics, the accumulation of inorganic ions in the root zone are closely related to the irrigation volume. Therefore, the effects of irrigation volume on the growth and yield of tomatoes are very signigicant. This study was conducted to investigate the effect of irrigation volume on inorganic ions of root zone in hydroponic culture using coir substrate. The irrigation volume was adjusted to 4 levels depending on the integrated solar radiation for each growth period. The drainage ratio was calculated by daily amount of irrigation and drainage. The higher irrigation volume is, drainage ratio and water absorption tended to increase. But, the water absorption in the treatment of high irrigation volume was decreased in February and March compared to the treatment of medium high irrigation volume. By calculating monthly average irrigation volume and the drainage ratio, 120 to 140 J/cm² in January, 100 to 120 J/cm² in February, 80 to 100 J/cm² in March, 70 to 90 J/cm² in April and 60 to 75 J/cm² in May was detected as appropriate irrigation volume ranges which drainage ratio was 20-30%. The higher irrigation volume, the lower the concentration of ions decrease, which could prevent the accumulation of nutrients in the root zone. However, due to the characteristics of the coir substrate that absorbs ions, concentration of ions was significantly high when the drainage ratio was 20-30%. However, concentrations of P and K were sometimes lower in the drainage than that of irrigation water regardless of the treatment. Mg and S were the most highly accumulated ions even in the treatment of high irrigation volume. In low radiation season, there was no difference in the ion concentration in the drainage depending on the irrigation volume. In high radiation season, the lower irrigation volume, resulted to the higher ion concentration in the drainage. After March, it was difficult to prevent the increase of ions concetration in the drainage by only adjusting irrigation volume. Thus, it is necessary to decrease the EC of irrigation solution to prevent the accumulation of nutrients in the root zone.

Keywords

accumulated solar radiation

drainage.

수경재배에서는 근권내 양분의 집적 정도는 급액의 양 과 밀접한 관계를 가지기 때문에 급액의 양(횟수)이 토 마토의 생육과 수량에 미치는 영향이 크다. 따라서 본 시험에서는 코이어를 이용한 토마토 장기 수경재배에 급 액량이 근권의 무기이온에 미치는 영향을 구명하고자 하 였다. 적산일사량을 기준으로 급액량을 조절하였으며 생육시 기별로 적산일사량 설정치를 변경하며 급액량을 4수준으 로 처리하였다. 처리별 매일의 급액량과 배액량을 조사하였고 배액율 을 계산하였다. 급액량이 많을수록 토마토의 수분 흡수 량은 증가하는 경향이었다. 그러나 High 처리구는 2월과 3월에 Medium high 처리구에 비하여 수분 흡수가 감소 하였다. 월별 평균 급액량과 배액율을 계산하여 배액율 이 20-30%되는 급액 구간으로 1월은 120-140J/cm², 2월 은 100-120J/cm², 3월은 80-100J/cm², 4월은 70-90J/cm², 5월은 60-75J/cm²로 적정한 범위를 정할 수 있었다. 급 액량이 많을수록 이온들의 농도가 낮아서 근권의 양분집 적을 상당 부분 방지할 수 있었는데 양분을 흡착하는 코이어 배지의 특성 때문에 배액율이 20-30%인 경우 근 권의 무기이온의 농도는 상당히 높았다. 그런데 P와 K는 처리에 관계없이 배액에서 급액농도 보다 낮아지는 경우가 발생하였으며, 급액량이 많은 처 리에서도 Mg와 S가 가장 잘 집적되는 이온이었다. 일사 량이 적은 시기에는 급액량에 따른 배액내 무기이온의 농도는 큰 차이를 나타내지 않았으나, 일사량이 많은 시 기에는 급액량이 적을수록 배액의 무기이온의 농도가 높 았다. 특히, 3월 이후에는 급액량 조정만으로는 배액의 이온농도 상승을 방지하기 어려워 우선적으로 급액 EC 를 낮춰 근권에 양분이 집적되는 것을 막을 필요가 있 었다.

키워드

적산일사량

배액

References

C.G. An, Y.H. Hwang, H.S. Yoon, H.J. Hwang, G.M. Shon, G.W. Song and J.B. Ryong, J. Kor. Soc. Hort. Sci., Effect of drain ratio during fruiting period on growth and yield of sweet pepper Capsicum annuum ?~Jubilee ?(tm)) in rockwool culture., 23(3); 256-260 (2005)

C.G. An, Y.H. Hwang, G.M. Shon, C.S. Lim, J.L. Cho and B.R. Jeong, Kor. J. Hort. Sci. Technol., Effect of irrigation amount in rockwool and cocopeat substrates on growth and fruiting of sweet pepper during fruiting period., 27(2); 233-238 (2009)

Y. Ao, M. Sun and Y. Li, Bioresour. Technol., Effect of organic substrates on available elemental contents in nutrient solution., 99; 5006-5010 (2007)

M. Böhme, Acta Hortic., Effects of closed systems in substrate culture for vegetable production in greenhouses.; 45-54 (1995)

10.17660/ActaHortic.1995.396.4

C. Boivin, Cahier des confences. journ& d’infonnation sur les cultures abrites., La recirculation des solutions nutritives en culture sur laine de roche.; 76-80 (1990)

Y.H. Chang, Y.H. Hwang, C.G. An, H.S. Yoon, J.U. An, C.S. Lim and G.M. Shon, Journal of Bio-Environment Control, Effects of non-drainage hydroponic culture on growth, yield, quality and root environments of muskmelon (Cucumis melo L.). 2012., 21(4); 348-353 (2012)

W.F. Gericke, Amer. J. Bor., Aquaculture ameans of crop production., 16; 826 (1929)

O. Grunert, M. Perneel and S. Vandaele, Mires Peat, Peat-based organic growbags as a solution to the mineral wool waste problem., 3; 1-5 (2008)

Y.H. Hwang, C.G. An, Y.H. Chang, H.S. Yoon, J.U. An, G.M. Shon, C.W. Rho and B.R. Jeong, Plant Fac., Effect of Zero Drainage Using Drainage Zero Sensor on Root Zone Environment,Growth and Yield in Tomato Rockwool Culture. Protected Hort., 21(4); 398-403 (2012)

S. Islam, Int. J. Agric. Biol., Evaluating performance of ecologically sound organic substrates under different temperature regimes., 10; 297-300 (2008)

H.P. Klaring, Arronimie, Strategies to control water and nutrient supplies to greenghouse crop. A review., 21; 311-321 (2001)

J. Lopez, L.E. Parent, N. Tremblay and A. Gosselin, J. Plant Nutr., Sulfate accumulation and calcium balance in hydroponic tomato culture., 25(7); 1585-1597 (2002)

10.1081/PLN-120005409

P. Morard, L. Lacoste and J. Silvestre, J. Plant Nutr., Effect of oxygen deficiency on uptake of water and mineral nutrients by tomato plants in soilless culture., 23(8); 1063-1078 (2000)

10.1080/01904160009382082

RDA, Statistical data of soilless culture in Korea. (2016)

A. San Bautista, R. Rueda, B. Pascual, J.V. Maroto and S. Lopez-Galarza, Acta Hortic., Influence of different substrates and nutrient solutions on the yields and the incidence of abiotic disorders of Broccoli.; 275-280 (2005)

10.17660/ActaHortic.2005.697.33

V.A. Surrage, C. LafreniA"re, M. Dixon and Y. Zheng, HortScience, Benefits of vermicompost as a constituent of growing substrates used in the production of organic greenhouse tomatoes., 45; 1510-1515 (2010)

C. Sonneveld, Acta Hortic., Items for application of macro-elements in soilless culture.; 187-195 (1981)

W. Voogt, Acta Hortic., Nutrient uptake of year round tomato crops.; 99-112 (1993)

10.17660/ActaHortic.1993.339.9

H. Zekki, L. Gauthier and A. Gosselin, J. Am. Soc. Hortic. Sci., Growth, productivity and mineral composition of hydroponically cultivated greenhouse tomatoes with or without nutrient solution recycling., 121(6); 1082-1088 (1996)

Information

Publisher :The Korean Society for Bio-Environment Control
Publisher(Ko) :(사)한국생물환경조절학회
Journal Title :Protected Horticulture and Plant Factory
Journal Title(Ko) :시설원예ㆍ식물공장
Volume : 27
No :1
Pages :1-6
Received Date : 2017-08-07
Revised Date : 2017-11-09
Accepted Date : 2018-01-23
DOI :https://doi.org/10.12791/KSBEC.2018.27.1.1

Journal of Bio-Environment Control ISSN:1229-4675(Print) 2765-3641(Online) 생물환경조절학회지

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