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Roots modify the properties of soil in their immediate vicinity. Individually, fine roots (<1 mm in diameter) have little effect on soil properties, but this is offset by the fact that they make up most of a plant’s total root length. Roots growing near the soil surface may influence soil...
Willows in the Flemish region are threatened by the watermark disease, a wood disease caused by the bacterium Brenneria salicis (Hauben et al. Syst Appl Microbiol 21:384–397, 1998). Affected trees are observed to grow at specific sites which seem more sensitive to periodical watermark symptom...
Increased atmospheric CO 2 was shown to affect a variety of physiological processes in plants, including photosynthesis and growth with repercussions on crop yield and nutritive value. Perennial alfalfa ( Medicago sativa L.) is a sustainable crop with a deep root system, living in symbiosis with...
A significant proportion of arable land in south-western Australia is highly susceptible to subsoil compaction, which limits access of roots of wheat to water and nutrients at depth. Genotypic variation in the ability of roots to penetrate a hardpan has been reported for other cereals, using a...
We studied transformation and mineralization of nitrogenous soil polymers by the humivorous larva of the scarabaeid beetle Pachnoda ephippiata , using 14 C-labeled peptides, peptidoglycan, and chitin, both native and stabilized by co-polymerization with synthetic humic acids. The results...
We studied differences in nitrogen use efficiency (NUE) among six species ( Calamagrostis epigejos (L.) Roth., Carex duriuscula C.A. Mey., Phragmites communis (L.) Trin., Salix gordejevii Y.L. Chang, Salix cheilophila Schneid., and Typha minima Funk.) growing in two contrasting habitat types,...
Soil moisture content and leaf area index (LAI) are properties that will be particularly important in mediating whole system responses to the combined effects of elevated atmospheric (CO 2 ), warming and altered precipitation. Warming and drying will likely reduce soil moisture, and this effect...
Experiments were conducted to examine the effects of long-term fertilization and acute Zn toxicity on the size, nitrification activity and community structure of autotrophic ammonia-oxidizing populations of the β-subgroup of the class Proteobacteria in arable soils. Plots under different...
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