Effects of root-feeding nematodes on aboveground net primary production in a North American grassland
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Authors: R. E. Ingham, and J. K. Delting
Date: 1990
Journal: Plant and Soil
Volume: 121
Number:
Pages: 279-281
Summary of Methods: The authors observed the effects of nematode root feeding on the aboveground plant biomass in a mixed grass prairie. Two areas of the mixed grass prairie were treated with carbofuran, a nematicide. Seasonal mean density of root-feeding nematodes was reduced approximately 82% by carbofuran. Aboveground net primary production was significantly greater in the treated plots for both season in Site 1 but only for the second year in Site 2. Increases in aboveground net primary production averaged 51% in Site 1 and 26% in Site 2. It was estimated that root-feeding nematodes reduced aboveground net primary production by 16 times more than they consumed.
Article Summary / Main Points: None
Vegetation Types:
MLRA Ecoregions:
Agrovoc Control Words: Riparian zones Rangelands Wildlife
Article Review Type: Refereed
Article Type: Experimental Research
Keywords: western wheatgrass, agropyron smithii, carbofuran, forage production, kentucky bluegrass, poa pratensis, root consumption, little bluestem, schizachyrium scoparium
Annotation: Grazing intensity is not specified. Before treatment, all previous year's standing-dead shoot material was clipped from within 5, 0.2 m x 0.5 m quadrats per plot.
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