| Record number | 302224 |
|---|---|
| Title | Rapid nutrient leaching to groundwater and surface water in clay soil areas |
| Author(s) | Bronswijk, J.J.B.; Hamminga, W.; Oostindie, K. |
| Source | European Journal of Agronomy 4 (1995)4. - ISSN 1161-0301 - p. 431 - 439. |
| DOI | https://doi.org/10.1016/s1161-0301(14)80095-6 |
| Department(s) | Winand Staring Centre for Integrated Land, Soil and Water Research |
| Publication type | Refereed Article in a scientific journal |
| Publication year | 1995 |
| Abstract | Nitrate leaching from agricultural soils has frequently led to concentrations above the EU drinking-water standard. Most data originate from sandy soils. In this experiment the mechanism and magnitude of nitrate leaching from grassland on a heavy claysoil were investigated. In an experimental field, nitrogen input and nitrate output were measured. A bromide tracer was applied to study solute transport mechanisms. Nitrate transport occurred mainly via preferential flow through mesopores and macroporesresulting in small mobile-water volumes and high nitrate-leaching rates. Nitrate concentrations in the drain discharge were high. Models cannot adequately predict nitrate leaching in heavy clay soils. |
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