Seasonal changes in the performance of a catch crop for mitigating diffuse agricultural pollution

K. Kondo, K. Inoue, T. Fujiwara, S. Yamane, D. Yasutake, M. Maeda, H. Nagare, S. Akao, K. Ohtoshi

研究成果: Contribution to journalArticle査読

8 被引用数 (Scopus)

抄録

An in situ technology for mitigating diffuse agricultural pollution using catch crops was developed for simultaneously preventing nitrate groundwater pollution, reducing nitrous oxide (N2O) gas emissions, and removing salts from the topsoil. Seasonal changes in the performance of a catch crop were investigated using lysimeters in a full-scale greenhouse experiment with 50 d cultivation of dent corn. Catch crop cultivation significantly reduced the leached mineral nitrogen by 89-91% in summer, 87-89% in spring, and 61-82% in winter, and it also significantly reduced the N2O emission by 68-84% in summer. The amounts of nitrogen uptake by the catch crop were remarkably higher than those of leached nitrogen and N2O emission in each season. Catch crop cultivation is a promising technology for mitigating diffuse agricultural pollution.

本文言語英語
ページ(範囲)776-782
ページ数7
ジャーナルWater Science and Technology
68
4
DOI
出版ステータス出版済み - 2013
外部発表はい

All Science Journal Classification (ASJC) codes

  • 環境工学
  • 水の科学と技術

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