Crop Sequence and nutrient acquisition from the subsoil
Abstract
The research unit aims to describe and quantify processes in, and the amount of nutrients released from, the agricultural subsoil. The creation of biopore systems, soil structure dynamics, microbial activities, water dynamics and nutrient transformation processes will be described and quantified.
The Institute of Crop Science develops a numerical model which describes mobilisation, transport and uptake process of nutrients from the subsoil by crops at the field scale.
Persons in charge
Thomas Gaiser
Runtime
2010 - 2013
Funding
Deutsche Forschungsgemeinschaft (DFG)
Cooperating partners
Koordination: Institut für Organischen Landbau (IOL) Universität Bonn http://www.for1320.uni-bonn.de/
Weitere Partner: Universität Halle, Universität Kiel, Universität Bayreuth, Forsschungszentren Jülich und GSF München.
Publications
Gaiser, T., U. Perkons, P.M. Küpper, T. Kautz, D. Uteau-Puschmann, F. Ewert, A. Enders, G. Krauss, 2013. Modeling biopore effects on root growth and biomass production on soils with pronounced sub-soil clay accumulation. Ecological Modelling 256 , 6-15. DOI:10.1016/j.ecolmodel.2013.02.016
Kautz, T., W. Amelung, F. Ewert, T. Gaiser, R. Horn, R. Jahn, M. Javaux, A. Kemna, Y. Kuzyakov, J.-C. Munch, S. Pätzold, S. Peth, H.W. Scherer, M. Schloter, H. Schneider, J. Vanderborght, D. Vetterlein, A. Walter, G. Wiesenberg, U. Köpke, 2013. Nutrient acquisition from the arable subsoil in temperate climates: a review. Soil Biology and Biochemistry 57,1003-1022. DOI:10.1016/j.soilbio.2012.09.014.
Gaiser, T., U. Perkons, P.M. Küpper, D.U. Puschmann, S. Peth, T. Kautz, J. Pfeifer, F. Ewert, R. Horn, U. Köpke, 2012. Evidence of improved water uptake from subsoil by spring wheat following lucerne in a temperate humid climate. Field Crops Research 126, 56-62. DOI:10.1016/j.fcr.2011.09.019.
Gaiser, T., U. Perkons, P.M. Küpper, D.U. Puschmann, S. Peth, T. Kautz, J. Pfeifer, F. Ewert, R. Horn,U. Köpke, 2011. Evidence of improved water uptake from subsoil by spring wheat following lucerne in a temperate humid climate. Field Crops Research 126, 56-62. DOI:10.1016/j.fcr.2011.09.019. Poster (in German): Gaiser_et_al_2011a
Gaiser, T., U. Perkons, D.U. Puschmann, S. Peth, T. Kautz, J. Pfeifer, F. Ewert, R. Horn, U. Köpke, 2011. Erhöhter Wasserentzug aus dem Unterboden durch Sommerweizen nach einer Luzernevorfrucht. Proceedings of the bi-annual meeting of the German Soil Science Society, Berlin.