Hopp til hovedinnholdet

Publications

NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.

2002

Abstract

• Micro suction cups are useful for collecting soil solution at high spatial resolution, e.g. gradients in the rhizosphere. • Their success in the field depends on soil type and the soil water content. • Both inorganic ions, organic acids, and pH in the soil solution showed high variability through time. • Unexpectedly, the concentration of major cations and anions were higher in the rhizosphere than in the bulk soil. • Only four organic acids were detected with certainty, i.e. by use of retention times and spectra of known standards. • Low initial concentrations with subsequent microbial breakdown in the samples vials and analytical limitations of small volume samples are considered to be the main reasons for the small number of acids detected.