Amelioration of Autotoxic Soil Constraints to Lettuce and Mat-rush Growths by Activated Charcoals
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概要
- 論文の詳細を見る
Phytotoxic effects of root exudates of mat-rush (Lomandra longifolia Labill.), which accumulated in the soil by the continuous mat-rush cultivation were evaluated for the growth of lettuce (Lactuca sativa L.) and mat-rush seedlings. A soil with continuous mat-rush cultivation for over three years was used for this study. A 210 ml of soil was amended with the different fineness of 1.53 g activated charcoals (AC): coarse-AC and fine-AC. The soils without the AC amendment (non-AC) and without previous mat-rush cultivations (control) were also prepared. The stem length, root length, and fresh shoot and root weight of lettuce grown in the non-AC soil were reduced to 67, 24 and 55% of those found in the control, respectively. The soil amended with the coarse and fine AC improved these growth parameters. The growth reduction of plants grown in the non-AC soil may likely appear to be related to allelochemicals exuded from the mat-rush root because there were negligible changes in soil physical and chemical properties between the non-AC and AC amended soils. The detrimental effects of soils used for a continuous mat-rush cultivation on following plant growth can be ameliorated by the addition of AC to the soil.
- 日本生物環境工学会の論文
- 2007-03-31
著者
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BAN Takuya
Faculty of Technology, Tokyo University of Agriculture and Technology
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Ban Takuya
Faculty Of Life And Environmental Science Shimane University
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HASHIMOTO YOHEI
Department of Pharmacognosy, Kobe Women's College of Pharmacy
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Hashimoto Yohei
Department Of Soil Science North Carolina State University
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Hashimoto Yohei
Department Of Pharmacognosy Kobe Women's College Of Pharmacy
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ASAO Toshiki
Faculty of Life and Environmental Science, Shimane University
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KITAZAWA Hiroaki
Faculty of Life and Environmental Science, Shimane University
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MOTOKI Satoru
Nagano Vegetable and Ornamental Crops Experiment Station
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Asao Toshiki
Faculty Of Life And Environmental Science Shimane University
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Kitazawa Hiroaki
Faculty Of Life And Environmental Science Shimane University
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Hashimoto Yohei
Department Of Bioresource Science Mie University
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