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Publications (7)
Growing potatoes in temperate regions often leads to nitrogen (N) leaching, however this could be significantly reduced with drip irrigation and nitrogen fertigation if the timing and amounts of the applications matched the crop demand. Determination of when and how much to apply is not straightforward, particularly because the N mineralisation dur...
The conceptual understanding of the preferential water flow is crucial and hence understanding the degree of water percolating rapidly through vertical macropores, or slowly through the low-permeable matrix, is vital in order to assess the risk of contaminants like nitrate and pesticides being transported through a variably-saturated macroporous cl...
To protect the quality of the aquatic environment, it is imperative to be able to assess the leaching of nitrate through various hydrogeological settings. Numerical model concepts have been developed in order to describe this leaching and possible routes of nitrogen at field scale, often without being evaluated in regard to their ability to account...
Artificial drainage is an essential water management system in agriculture and tile drains are implemented on more than half of the agricultural fields in Denmark. Water that flows through the drainpipes to surface water bodies can transport contaminants. Quantifying the drainage discharge is an important step towards understanding the flow dynamic...
A long term experiment has been set up on a field at Tokkerup, which is located on South Zealand, Denmark, in order to understand the water flow dynamics and fate of nitrogen in the matrix, drainage and groundwater flow. The field is 3.8 ha, relatively flat, with macroporous clayey and calcareous subsoil (JB7, JB12 by the Danish soil classification...
To be able to assess the risk of contaminants like nitrate and pesticides being transported through a variably-saturated macroporous clay till to artificial drain pipes, the conceptual understanding of the preferential water flow is crucial. Hence, the degree of water percolating rapidly through vertical macropores or slowly through the low permeab...
