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

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)776-782
Number of pages7
JournalWater Science and Technology
Volume68
Issue number4
DOIs
Publication statusPublished - Sep 17 2013
Externally publishedYes

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Water Science and Technology

Cite this