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논문 기본 정보

자료유형
학술저널
저자정보
Young Yeol Cho (제주대학교) Ki Young Choi (서울시립대학교) Yong-Beom Lee (서울시립대학교)
저널정보
한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.51 No.4
발행연도
2010.8
수록면
348 - 354 (7page)

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초록· 키워드

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This study aimed to determine the effects of irrigation methods, including reservoir-drainage, wick irrigation and drip irrigation, on the growth, water holding capacity of substrate and nutrient uptake of lettuce (Lactuca sativa L. var. cripspa), chicory Cichorium intybus L. var. folisum Hegi) and endive (Cichorium endivia L. var. endivia) grown in an extensive green roof system. Two independent experiments were carried out during summer and autumn seasons with and without supplying mineral nutrients. In both experiments, the ranking of substrate water holding capacity was in the order of drip irrigation>wick irrigation>reservoir-drainage method. Only the wick irrigation method constantly maintained the water content in the substrate during the growing period. In the summer experiment, not only fresh and dry weights and relative growth rate (RGR) of all three vegetables, but also total nitrogen (T-N) and magnesium (Mg) contents of the leaves were the highest at the wick irrigation treatment. The contents of phosphorous (P) and potassium (K) in the leaves were the highest at the drip irrigation treatment. In the autumn experiment, shoot fresh weights of all three vegetables were the highest at the drip irrigation treatment, while shoot dry weights of lettuce and chicory were the highest at the wick irrigation treatment. The RGR of lettuce and chicory were the highest at the drip irrigation treatment, while the RGR of endive was the lowest at the wick irrigation treatment. In the both experiment, dry matter contents (DMs) were the highest at the reservoir-drainage treatment. There was no effect of irrigation treatments on the photosynthesis, stomatal conductance and transpiration rate of the lettuce and chicory. These results suggest that the wick irrigation is more efficient for growing leafy vegetables in the extensive green roof system compared to the reservoir-drainage and drip irrigation.

목차

Abstract
Introduction
Material and Methods
Results and Discussion
Acknowledgements
Literature Cited

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UCI(KEPA) : I410-ECN-0101-2010-525-002728586