論文

査読有り
1999年3月

Effects of cultivation conditions on algal communities in paddy soils

Japanese Journal of Limnology
  • Yuko Fujita
  • ,
  • Hiroyuki Nakahara

60
開始ページ
84
終了ページ
86
DOI
10.3739/rikusui.60.77

Seasonal variations of algal communities in air-dried soils in three paddy fields and a upland rice field with different cultivation conditions were investigated. Two of three paddy fields were cultivated with chemical fertilizers and pesticides, the other with organic fertilizers and no pesticides. The upland rice field was cultivated without flooding, tillages, fertilizers and pesticides. Algal abundance in three paddy soils increased gradually during the flooded period with maximum values of 7.0-10.0×105 CFU g-1 soil but those in upland soil changed little. Chlorella vulgaris, Scenedesmus microspina, Scenedesmus ecornis and Chlorococcum spp. were usually dominant in all paddy soils. In organic-fertilized paddy soil, relative abundance of green algae were higher than those in two chemical-fertilized soils. In the upland soil, Chlorella vulgaris was predominant and no Scenedesmus species were dominant.

リンク情報
DOI
https://doi.org/10.3739/rikusui.60.77
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0032841566&origin=inward
ID情報
  • DOI : 10.3739/rikusui.60.77
  • ISSN : 0021-5104
  • SCOPUS ID : 0032841566

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