Arbuscular mycorrhizal colonization increases phosphorus uptake and growth of corn in a white clover living mulch system(Soil biology)
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概要
- 論文の詳細を見る
White clover (Trifolium repens L.) living mulch, a cover crop cultivation system, has been shown to improve phosphorus (P) nutrition and increase the yield and arbuscular mycorrhizal colonization rate of the main crop without inoculation of fungi. However, it remains unclear whether the P uptake of corn (Zea mays L.) in living mulch is promoted directly by arbuscular mycorrhizal colonization. We performed a pot experiment to test the hypothesis that living mulch increases the P uptake of corn by promoting arbuscular mycorrhizal colonization. The experimental design was a 2×2 factorial arrangement using fungicide treatment (fungicide application or no fungicide application) and cropping system (living mulch or no mulch). The fungicide dazomet was used to inhibit arbuscular mycorrhizal colonization. Without fungicide application, the P concentration and dry weight of the corn shoots were greater in the living mulch than in the no mulch treatment, indicating that living mulch improved the P nutrition and growth of corn. Fungicide application in living mulch, however, decreased the P concentration, dry weight of corn shoots, and arbuscular mycorrhizal colonization compared with no fungicide application. These results suggest that living mulch increases the P uptake of the main crop by promoting arbuscular mycorrhizal colonization by indigenous fungi.
- 一般社団法人日本土壌肥料学会の論文
- 2012-04-00
著者
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KANEKO Makoto
Kyushu Univ.
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UOZUMI Sunao
National Agricultural Research Center for Tohoku Region
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TOUNO Eiko
National Agricultural Research Center for Tohoku Region
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Uozumi Sunao
Tohoku National Agricultural Experiment Station National Agricultural Research Organization
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TAWARAYA Keitaro
Laboratory of Plant Nutrition and Soil Science, Faculty of Agriculture, Yamagata University
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Tawaraya Keitaro
Laboratory Of Plant Nutrition And Soil Science Faculty Of Agriculture Yamagata University
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TOUNO Eiko
Tohoku Agricultural Research Center, National Agriculture and Food Research Organization
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DEGUCHI Shin
Tohoku Agricultural Research Center, National Agriculture and Food Research Organization
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KANEKO Makoto
Kyushu Okinawa Agricultural Research Center, National Agriculture and Food Research Organization
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UOZUMI Sunao
Tohoku Agricultural Research Center, National Agriculture and Food Research Organization
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- Arbuscular mycorrhizal colonization increases phosphorus uptake and growth of corn in a white clover living mulch system
- Arbuscular mycorrhizal colonization increases phosphorus uptake and growth of corn in a white clover living mulch system(Soil biology)
- Arbuscular mycorrhizal colonization increases phosphorus uptake and growth of corn in a white clover living mulch system