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首页> 外文OA文献 >豚ぷんコンポスト施用土壌におけるトウモロコシとサツマイモを用いた亜鉛と銅の吸収-アーバスキュラー菌根菌の寄与および木炭施用の影響-
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豚ぷんコンポスト施用土壌におけるトウモロコシとサツマイモを用いた亜鉛と銅の吸収-アーバスキュラー菌根菌の寄与および木炭施用の影響-

机译：猪粪堆肥对玉米和甘薯在土壤中吸收锌和铜的影响-丛枝菌根真菌的贡献和木炭的施用-

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An open-field container experiment was conducted to determine the effectiveness of maize (Zea mays) and sweet potato (Ipomoea batatas) as phytoremediation agents in removing Zn and Cu from pig farmyard manure(PFM) applied on soils. Hypotheses were tested in soil amended with PFM and wood charcoal to know 1) whether Zn and Cu uptake by the plants are arbuscular mycorrhizal (AM) or wood charcoal dependent; and 2) if the harvestable edible parts of the agricultural crops can still be used. PFM application resulted to higher Zn and Cu insoil and enhanced plant-uptakes of these elements. Removal of Zn and Cu from PFM applied soils using maize is more effective than sweet potato. After maize was harvested, the number of mycorrhizal spores in soil decreased with PFM application. After sweet potato was harvested, the number of spores in soil decreased with both PFM and charcoal application. AM colonization and the number of spores were not always consistent with the absorption of heavy metals in both plants. Relationship between AM fungal activities and charcoal application was also variable. However, Zn and Cu concentration in the edible parts of both plants were not affected by any of the soil amendments tested. These findings suggested that the use of agricultural crops, such as maize and sweet potato, may be useful for the long-term phytoremediation in an arable field without generating risks of higher heavy metal concentrations in edible parts.
机译：进行了露天容器实验，以确定玉米（Zea mays）和甘薯（Ipomoea batatas）作为植物修复剂从施用到土壤的猪场肥料（PFM）中去除锌和铜的有效性。在用PFM和木炭改良的土壤中测试了假设，以了解1）植物吸收的锌和铜是丛枝菌根（AM）还是木炭依赖性的； 2）是否仍然可以使用农作物的可收获食用部分。 PFM的施用导致较高的Zn和Cu土质，并增加了这些元素的植物吸收。使用玉米从施用PFM的土壤中去除锌和铜比红薯更有效。收获玉米后，施用PFM可以减少土壤中的菌根孢子数量。收获红薯后，施用PFM和木炭均可减少土壤中的孢子数量。 AM定殖和孢子数量并不总是与两种植物中重金属的吸收一致。 AM真菌活动与木炭施用之间的关系也是可变的。但是，两种植物的可食用部分中的Zn和Cu浓度均不受任何土壤改良剂的影响。这些发现表明，在不增加可食用部分重金属浓度风险的情况下，使用玉米和甘薯等农作物可能有助于长期进行植物修复。

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