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A model analysis on nitrate leaching under different soil and climate conditions and use of catch crops

Pedersen, Anders; Stoumann Jensen, Lars and Thorup-Kristensen, Kristian (2005) A model analysis on nitrate leaching under different soil and climate conditions and use of catch crops. Poster at: at 14th N WORKSHOP “N management in agrosystems in relation to the Water Framework Directive”, Maastricht, The Netherlands, 24-26 October 2005,. [Unpublished]

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The use of crops and catch crops with deep rooting can strongly improve the possibility of retaining nitrate-N that will otherwise be leached to the deeper soil layers and end up in the surrounding environment. But will it always be an advantage for the farmer to
grow a catch crop? This will depend on factors such as soil mineral nitrogen level, soil water holding capacity, winter precipitation, rooting depth and N demand of the scceeding crop. These factors interact, and it can be very difficult for farmers or advisors to use this information to decide whether growing a catch crop will be beneficial. To analyse the effect of catch crops under different Danish soil and precipitation conditions, we used the soil, plant and atmosphere model Daisy.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:Nitrate, nitrate leaching, catch crops
Subjects: Soil > Nutrient turnover
Crop husbandry > Post harvest management and techniques
Crop husbandry > Crop combinations and interactions
Farming Systems > Farm nutrient management
Soil > Soil quality
Research affiliation: Denmark > KU - University of Copenhagen > KU-LIFE - Faculty of Life Sciences
Denmark > DARCOF II (2000-2005) > I.10 (VegCatch) Organic vegetable cultivation methods and use of catch crops
Denmark > SOAR - Research School for Organic Agriculture and Food Systems
Deposited By: Pedersen, Ph.Stud. Anders
ID Code:7831
Deposited On:24 Mar 2006
Last Modified:12 Apr 2010 07:32
Document Language:English
Refereed:Not peer-reviewed

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