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Aims Assess the role of Phragmites australis in the temporal variability of physico-chemical and microbiological soil properties related to biogeochemical processes in eutrophic wetlands. Methods A mesocosms experiment was performed with alternating flooding-drying conditions with eutrophic water at two nutrient levels, and soil Eh, pH, temperature, CO2 emissions, dissolved organic carbon, carbon...
The main objective of the work described in this paper was to investigate the usefulness of a point-placement technique for investigating nitrogen-use by irrigated rice in a tropical lowland environment. The technique was used to deliver a small quantity of urea 15N to a specific location adjacent to the roots of a rice plant in a few minutes. The amount of 15N delivered was equivalent to 4–8 h of...
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