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The Ecology of Nematodes in Manitoba Soils

The Ecology of Nematodes in Manitoba Soils THE ECOLOGY OF NEMATODES IN MANITOBA SOILS BY JOE KIMPINSKI 1) and HAROLD E. WELCH Department of Zoology, University of Manitoba, Winnipeg, Canada Fifty-one genera of nematodes were found in three types of soil in southern Manitoba. Butlerius spp., Leptonchus spp., and Pseudhalenchus spp. were newly recorded in Canada. Helicotylenchus spp., Tylenchorhynchus spp. Tylenchus spp., Mesorhabditis spp., Panagrolaimus spp., and Eudory- laimus spp. were most numerous. Clay soils harbored more nematodes than sand. Differences in numbers of nematodes between three selected areas were correlated with differences of nitrogen (N), potassium (K) and soluble salts in the soil solution, and not with soil type. In pot experiments, nematode populations at the same initial density in clay and sand under grass were exposed to different levels of N, phosphorus (P) and K. After approximately 12 weeks, numbers of nematodes were greater in clay than in sand, but the difference may have been due to greater plant growth in clay. Nematode numbers decreased as N content in clay increased, whereas numbers increased with addition of N to sand. Numbers of dorylaimids were similar in clay and sand. Tylenchids were more numerous in clay than in sand, and decreased as N concentrations http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

The Ecology of Nematodes in Manitoba Soils

Kimpinski, Joe; Welch, Harold E.
Nematologica , Volume 17 (2): 11 – Jan 1, 1971
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/187529271X00161
Publisher site
See Article on Publisher Site

Abstract

THE ECOLOGY OF NEMATODES IN MANITOBA SOILS BY JOE KIMPINSKI 1) and HAROLD E. WELCH Department of Zoology, University of Manitoba, Winnipeg, Canada Fifty-one genera of nematodes were found in three types of soil in southern Manitoba. Butlerius spp., Leptonchus spp., and Pseudhalenchus spp. were newly recorded in Canada. Helicotylenchus spp., Tylenchorhynchus spp. Tylenchus spp., Mesorhabditis spp., Panagrolaimus spp., and Eudory- laimus spp. were most numerous. Clay soils harbored more nematodes than sand. Differences in numbers of nematodes between three selected areas were correlated with differences of nitrogen (N), potassium (K) and soluble salts in the soil solution, and not with soil type. In pot experiments, nematode populations at the same initial density in clay and sand under grass were exposed to different levels of N, phosphorus (P) and K. After approximately 12 weeks, numbers of nematodes were greater in clay than in sand, but the difference may have been due to greater plant growth in clay. Nematode numbers decreased as N content in clay increased, whereas numbers increased with addition of N to sand. Numbers of dorylaimids were similar in clay and sand. Tylenchids were more numerous in clay than in sand, and decreased as N concentrations

Journal

Nematologica – Brill

Published: Jan 1, 1971

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