한국환경과학회지 제28권 제9호 (p.729-735)

|ORIGINAL ARTICLE|
토마토 양액재배시 배지 환경조성이 생육 및 생산성에 미치는 영향

Effects of Environmental Substrate Composition on the Growth and Yield of Hydroponically Grown Tomato
키워드 :
Coir chip,Leaf area,Photosynthesis,Root activity,Soluble solid content

목차

Abstract
1. 서 론
2. 재료 및 방법
   2.1. 파종 및 양액관리
   2.2. 생육 및 수량조사
   2.3. 광합성 및 근활력 분석
   2.4. 통계분석
3. 결과 및 고찰
   3.1. 배액의 EC 및 pH 분석
   3.2. 생육분석
   3.3. 광합성 및 근활력 분석
   3.4. 과실특성 및 당도
   3.5. 수량분석
4. 결 론
REFERENCES

초록

The aim of this study was to determine the effects of different compositions of environmental substrates on hydroponic tomato cultivation. Three different substrates were used in coir chip:dust (v/v=50:50; CP1), coir chip:dust (v/v=80:20; CP2), and rock wool cube with CP2 (CPR). The amount of irrigation during the cultivation period was 190 mL/(plant·time) in all substrates. The pH and EC were 5.8-6.2 and 2.6-2.9 dS/m, respectively. The drainage rate in CP1 was 31%, in CP2 was 36%, and in CPR was 29%. The growth of tomato plants in terms of height was higher in CP1 and CPR. The leaf area was greater in CP2. The fresh and dry weights were greater in CP2 and CPR treatments. The net photosynthesis in CP2 (19.31 μmol CO2/m2s) and root activity in CP2 were higher among all three treatments. The soluble solid content of fruit was not significantly different among treatments. The yield per plant in CP2 and CPR treatments was 17% greater than the yield per plant in CP1. Therefore, the most suitable substrate for hydroponic tomato cultivation is the substrate mixed with coir chip:dust (v:v=80:20; CP2), i.e., CPR.