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Nitrogen fixation in perennial forage legumes in the field
TLDR
Despite large differences in environmental conditions, such as N fertilization and geographic location, N2 fixation (Nfix) was significantly (P<0.001) correlated to legume dry matter yield (DM; kg per ha and year). Expand
Actinorhizal symbioses and their N2 fixation.
More than 200 angiosperms, distributed in 25 genera, develop root nodule symbioses (actinorhizas) with soil bacteria of the actinomycetous genus Frankia. Although most soils studied contain infectiveExpand
UPTAKE OF ORGANIC NITROGEN IN THE FIELD BY FOUR AGRICULTURALLY IMPORTANT PLANT SPECIES
TLDR
It is shown that regressions of plots of excess 13C against excess 15N showed that a minimum of 19–23% of the glycine-derived N was taken up as intact amino acid; possible losses of labeled C atoms of glycine during its metabolism in the plants implies that these estimates are conservative. Expand
Local adaptation enhances performance of common plant species
TLDR
The overall performance of the three test species, Trifolium pratense, Dactylis glomerata, Plantago lanceolata, was generally highest for plants replanted at their home site and declined with increasing transplanting distance. Expand
General stabilizing effects of plant diversity on grassland productivity through population asynchrony and overyielding.
TLDR
The results suggest that stabilizing effects of diversity on community productivity through population asynchrony and overyielding appear to be general in grassland ecosystems. Expand
Numerical responses of different trophic groups of invertebrates to manipulations of plant diversity in grasslands
TLDR
The similarity of invertebrate responses to plant diversity at the two study sites indicates that general patterns in abundance of different trophic groups can be detected across plant diversity gradients under different environmental conditions. Expand
Feeding by insects and hares on birches earlier affected by moose browsing
TLDR
Les arbres broutes anterieurement par Alces alces sont generalement plus infestes par les insectes that les non-broutes, notamment par les lievres. Expand
How plant diversity and legumes affect nitrogen dynamics in experimental grassland communities
TLDR
It is concluded that a sampling effect contributed towards greater biomass and total N in high-diversity communities early on in the experiment, but that over time this effect weakened and other positive effects of diversity became more important. Expand
Nitrogenase Activity Measurements in Intact Plants of Alnus incana
TLDR
Intact plants showed high and constant C2H2-reduction rates during several hours of incubation, and repeated nitrogenase activity assays on the same intact individual plants did not affect growth, and proved useful in studies. Expand
ECOSYSTEM EFFECTS OF BIODIVERSITY MANIPULATIONS IN EUROPEAN GRASSLANDS
TLDR
Results from a multisite analysis of the relationship between plant diversity and ecosystem functioning within the European BIODEPTH network of plant-diversity manipulation experiments largely reinforce the previous results, and those from comparable biodiversity experiments, and extend the generality of diversity–ecosystem functioning relationships to multiple sites, years, and processes. Expand
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