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The increased use of nitrogen fertilisers, especially in the form of manure, is creating environmental problems through the transport of excess nitrogen to ground-surface waters and through the release of nitrogen compounds into the atmosphere. The formulation and execution of a rational and effective policy to prevent this pollution requires a thorough understanding of the behaviour of nitrogen and its compounds in the soil. This understanding could be increased by use of simulation models to predict the leaching of nitrate through the soil to the groundwater in a variety of soil types and climates, and under different management practices and control measures. Hardly any information exists on the comparison of nitrogen models or nitrate leaching models using one dataset and employing quantitative criteria to evaluate the performance of the models. Therefore, in the EC research project "Nitrate in soils", the leaching models developed or available in the seven participating institutes are being screened and compared using the same independent datasets, from field experiments covering major soil conditions in Europe. Some initial results for one dataset are presented.

Additional information

Authors: REINIGER P, CEC Bruxelles (BE);HUTSON J, Department of Agronomy, Cornell University, Ithaca (US);JANSEN H, The Winand Staring Centre for Integrated Land, Soil and Water Research, Wageningen (NL);KRAGT J, The Winand Staring Centre for Integrated Land, Soil and Water Research, Wageningen (NL);PIEHLER H, Working Group on System Analysis, Osnabrück (DE);SWARTS M, Laboratory of Land Management, Leuven (BE);VEREECKEN H, Laboratory of Land Management, Leuven (BE)
Bibliographic Reference: Paper presented: Fourteenth International Congress of Soil Science, Kyoto (JP), Aug. 12-18, 1990
Availability: Available from (1) as Paper EN 34772 ORA
Record Number: 199010915 / Last updated on: 1994-12-01
Original language: en
Available languages: en
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