Items where Author is "Schjønning, P."

Number of eprints: 52.

Journal paper

Petersen, Søren O.; Schjønning, P.; Olesen, Jørgen E.; Christensen, S. and Christensen, B.T. (2013) Sources of nitrogen for winter wheat in organic cropping systems. Soil Science Society of America Journal, 77 (2), pp. 696-697.

Petersen, Søren O.; Ambus, Per; Elsgaard, Lars; Schjønning, P. and Olesen, Jørgen E. (2013) Long-term effects of cropping system on N2O emission potential. Soil Biology and Biochemistry, 57, pp. 706-712.

Schjønning, P.; de Jonge, L.W.; Munkholm, L.J.; Moldrup, P.; Christensen, B.T. and Olesen, J.E. (2011) Clay dispersibility and soil friability – testing the soil clay-to-carbon saturation concept. Vadose Zone Journal, 11 (1), pp. 174-187.

Chirinda, N.; Olesen, J.E.; Porter, J.R. and Schjønning, P. (2010) Soil properties, crop production and greenhouse gas emissions from organic and inorganic fertilizer-based arable cropping systems. Agriculture, Ecosystems and Environment, 139, pp. 584-594.

de Jonge, L.W.; Moldrup, P. and Schjønning, P. (2009) Soil Infrastructure, Interfaces & Translocation Processes in Inner Space (“Soil-it-is”): Towards a Road Map for the Constraints and Crossroads of Soil Architecture and Biophysical Processes. Hydrology and Earth System Sciences, 13, pp. 1485-1502.

Elmholt, S.; Schjønning, P.; Munkholm, L.J. and Debosz, K. (2008) Soil management effects on aggregate stability and biological binding. Geoderma, 144 (3-4), pp. 455-467.

Schjønning, P.; Munkholm, L.J.; Elmholt, S. and Olesen, J.E. (2007) Organic matter and soil tilth in arable farming: Management makes a difference within 5-6 years. Agriculture, Ecosytems and Environment, 122, pp. 157-172.

Elmholt, S.; Schjønning, P. and Munkholm, L.J. (2005) Er der krummer i din jord – eller er det bare knolde. [Does your soil form crumbs or clods?] FØJOenyt. Nyhedsbrev fra Forskningscenter for Økologisk Jordbrug og Fødevaresystemer (3).

Elmholt, S.; Schjønning, P. and Munkholm, L.J. (2005) Soil aggregation – a matter of proper management. DARCOFenews. Newsletter from Danish Research Centre for Organic Food and Farming (2).

Munkholm, L.J.; Schjønning, P. and Rüegg, K. (2005) Mitigation of subsoil recompaction by light traffic and on-land ploughing. I. Soil response. Soil & Tillage Research (80), pp. 149-158.

Munkholm, L.J.; Schjønning, P.; Jørgensen, M.H. and Thorup-Kristensen, K. (2005) Mitigation of subsoil recompaction by light traffic and on-land ploughing. II: Root and yield response. Soil & Tillage Research (80), pp. 159-170.

Schjønning, P.; Iversen, B.V.; Munkholm, L.J.; Labouriau, R. and Jacobsen, O.H. (2005) Pore characteristics and hydraulic properties of a sandy loam supplied for a century with either animal manure or mineral fertilizers. Soil Use and Management, 21, pp. 265-275.

Schjønning, P. and Munkholm, L.J. (2004) Soil organic carbon as an indicator of soil quality. DARCOFenews (3).

Munkholm, L.J. and Schjønning, P. (2004) Structural vulnerability of a sandy loam exposed to intensive tillage and traffic in wet conditions. Soil & Tillage Research (79), pp. 79-85.

Thomsen, I. K.; Schjønning, P.; Olesen, J.E. and Christensen, B. T. (2003) C and N turnover in structurally intact soils of different texture. Soil Biology & Biochemistry, 35 (6), pp. 765-774.

Schjønning, P.; Thomsen, I. K.; Moldrup, P. and Christensen, B. T. (2003) Linking Soil Microbial Activity to Water- and Air-Phase Contents and Diffusivities. Soil Science Society of America Journal, 67, pp. 156-165.

Thomsen, I. K.; Schjønning, P. and Christensen, B. T. (2003) Mineralization of 15N-labelled sheep manure in soils of different texture and water contents. Biology and Fertility of Soils (37), pp. 295-301.

Munkholm, L.J.; Schjønning, P.; Rasmussen, K.J. and Tanderup, K. (2003) Spatial and temporal effects of direct drilling on soil structure in the seedling environment. Soil and Tillage Research, 71 (2), pp. 163-173.

Schjønning, P.; Munkholm, L.J.; Moldrup, P. and Jakobsen, O.H. (2002) Modelling soil pore characteristics from measurements of air exchange: the long-term effects of fertilization and crop rotation. European Journal of Soil Science, 53 (2), pp. 331-339.

Schjønning, P. and Rasmussen, K.J. (2000) Soil strength and soil pore characteristics for direct-drilled and ploughed soils. Soil and Tillage Research, 57 (1-2), pp. 69-82.

Schjønning, P.; Thomsen, I.K.; Møberg, J.P.; de Jonge, H.; Kristensen, K. and B.T., Christensen (1999) Turnover of organic matter in differently textured soils. I. Physical characteristics of structurally disturbed and intact soils. Geoderma, 89 (3-4), pp. 177-198.

Thomsen, I.K.; Schjønning, P.; Jensen, B.; Kristensen, K. and Christensen, B.T. (1999) Turnover of organic matter in differently textured soils: II. Microbial activity as influenced by soil water regimes. Geoderma, 89 (3-4), pp. 199-218.

Newspaper or magazine article

Petersen, Søren O.; Schjønning, P. and Ambus, Per (2011) Afgrøderester og sædskifte har stor betydning for udledning af lattergas. Landbrugsavisen, 1 April 2011, p. 16.

Schjønning, P.; de Jonge, L.W.; Olesen, J.E. and Greve, M.H. (2009) Effekten af økologiske driftsmetoder på ler-dispergering i kulstof-udpinte jorde. ICROFS Nyt, December 2009 (4), pp. 5-7.

Schjønning, P.; de Jonge, L.W.; Olesen, J.E. and Greve, M.H. (2009) Organic farming effects on clay dispersion in carbon-exhausted soils. ICROFS News, November 2009 (4), pp. 8-10.

Schjønning, P. (2008) Undgå skadelig pakning af jorden. Økologisk Jordbrug, September 2008 (415), p. 12.

Schjønning, P.; Iversen, B.V. and Jacobsen, O.H. (2004) Driftsformen har begrænset effekt på jordens evne til at holde på vandet. FORSKNINGSNYTT om økologisk landbruk i Norden, December 2004, 4, pp. 19-20.

Schjønning, P. (2004) Kompakt jord. Agrologisk Marken, February 2004 (2), pp. 16-18.

Schjønning, P. (2004) Alsidig drift godt for jordens poresystem. [Crop rotation effects on the soil pore system.] Økologisk Jordbrug, 2004 (323), p. 6.

Schjønning, P.; Iversen, B.V. and Jacobsen, O.H. (2004) Driftsformen har begrænset effekt på jordens evne til at holde på vandet. [Crop rotation and animal manuring only slightly influence the soil's water holding capacity.] FORSKNINGSNYTT om økologisk landbruk i Norden, 2004, 4, pp. 19-20.

Munkholm, L.J. and Schjønning, P. (2003) Compacted subsoils in organic farming: Mechanical loosening and the risk of recompaction. DARCOFenews, September 2003, 3, - .

Schjønning, P. (2003) Jordbearbejdning. [Soil tillage (in organic farming).] Økologisk Jordbrug, 2003 (281), p. 4.

Conference paper, poster, etc.

Schjønning, P.; de Jonge, L.W.; Moldrup, P.; Christensen, B.T. and Olesen, J.E. (2010) Searching the critical soil organic carbon threshold for satisfactory tilth conditions – test of the Dexter clay:carbon hypothesis. [På jagt efter et nedre, kritisk indhold af organisk stof i jord - test af Dexter's ler:kulstof hypotese.] In: de Jonge, L.W.; Moldrup, P. and Vendelboe, A.L. (Eds.) Proceedings of the 1st international conference and exploratory workshop on soil architecture and physico-chemical functions "Cesar", Aarhus University, Faculty of Agricultural Sciences, Research Centre Foulum, Tjele, Denmark, pp. 341-346.

Schjønning, P. (2007) The role of soil science in optimization of soil resource management. Speech at: NJF's 23rd Congress: Trends and Perspectives in Agriculture, Copenhagen, June 26-29 2007.

Schjønning, P.; Munkholm, L.J. and Elmholt, S. (2004) En bekvem jord: hvad betyder det og hvordan opnås det. [A good soil tilth: what does it mean and how to obtain it.] Speech at: Økologi-kongres 2004, Odense Kongrescenter, 16-17. November 2004.

Schjønning, P. (2004) Jordkvalitet, jordbrug og EU-planlægning af jordbeskyttelse – et eksempel på en proces med dansk indflydelse. Poster at: Danmark i Verden, Forskningscenter Foulum, 29. november 2004. [Unpublished]

Jacobsen, O.H.; Vinther, F.P.; Schjønning, P.; Hansen, E.M. and Eriksen, J. (2004) Økologisk jordbrug til beskyttelse af grundvand. [Organic farming for protection of the ground water quality.] Speech at: Økologi-kongres 2004, Odense Kongrescenter, 16-17. November 2004.

Schjønning, P. (2004) The soil quality concept as a tool for exposing values in science and promoting sustainability considerations. In: Kertész, A.; Kovács, A.; Csuták, M.; Jakab, G. and Madarász, B. (Eds.) Proceedings of the 4th International Congress of the ESSC, Hungarian Academy of Sciences, Geographical Research Institute, 1112 Budapest, Budaörsi út 45, Hungary, pp. 108-112.

Schjønning, P.; Munkholm, L.J. and Elmholt, S. (2004) Soil quality in organic farming - effects of crop rotation, animal manure and soil compaction. Poster at: EUROSOIL 2004, Freiburg, Germany, 6-10. September 2004.

Munkholm, L.J. and Schjønning, P. (2003) Mechanical subsoiling: Mitigation of recompaction by light traffic and on-land ploughing. In: Proceedings, 16th International Conference of the International Soil Tillage Research Organization (CD-ROM).

Schjønning, P.; Munkholm, L.J.; Elmholt, S.; Debosz, K.; Mikkelsen, G.H. and Trautner, A. (2000) Den danske dyrkningsjords tilstand og kvalitet - konsekvenser af trafik og jordbearbejdning. [The quality of Danish agricultural soils - impact of traffic and tillage.] In: Tidsskrift for Landøkonomi, Landhusholdningsselskabet, 4, pp. 293-300. [Unpublished]

Schjønning, P. (2000) Jordens frugtbarhed og kvalitet. [Soil quality and soil fertility.] In: Tidsskrift for Landøkonomi, Landhusholdningsselskabet, 4, pp. 290-292.

Munkholm, L.J.; Schjønning, P.; Heckrath, G. and Jørgensen, M.H. (2000) Pløjefri dyrkning: effekter på jordens frugtbarhed. [Ploughless tillage: impact on soil quality.] In: Tidsskrift for Landøkonomi, Landhusholdningsselskabet, 4, pp. 306-309. [Unpublished]

Munkholm, L.J.; Schjønning, P. and Rasmussen, K.J. (1998) Non-inverting soil tillage as a means of optimising soil tilth. [Ikke-vendende jordbearbejdning til sikring af en bekvem jord.] In: Børresen, T. (Ed.) NJF-UTREDNING/RAPPORT, 124, pp. 26-33.

Schjønning, P.; Thomsen, I.K. and Christensen, B.T. (1998) Soil porosity as a habitat for microorganisms. [Jordens porer som habitat for mikroorganismer.] In: Børresen, T. (Ed.) NJF-UTREDNING/RAPPORT, 124, pp. 49-56.

Report

Schjønning, P.; Heckrath, G. and Christensen, B.T. (2009) Threats to soil quality in Denmark - A review of existing knowledge in the context of the EU Soil Thematic Strategy. [Trusler mod jordkvalitet i Danmark - En gennemgang af eksisterende viden set i lyset af EU's tematiske jordstrategi.] DJF Report Plant Science, no. 143. Aarhus University, Faculty of Agricultural Sciences, Research Centre Foulum, Tjele, Denmark.

Schjønning, P.; Jørgensen, M.H.; Olesen, J.E.; Rasmussen, G.; Munkholm, L.J. and Melander, B. (2001) Forsknings- og udviklingsaktiviteter på området reduceret jordbearbejdning. Danish Institute of Agricultural Sciences , Department of Crop Physiology and Soil Science.

Book chapter

Schjønning, P.; Elmholt, S. and Christensen, B.T. (2004) Managing Soil Quality - Synthesis. In: Schjønning, P.; Elmholt, S. and Christensen, B.T. (Eds.) Managing Soil Quality: Challenges in Modern Agriculture. CABI Publishing, Wallingford, UK, chapter 18, pp. 315-334.

Schjønning, P.; Elmholt, S. and Christensen, B.T. (2004) Soil Quality Management - Concepts and Terms. In: Schjønning, P.; Elmholt, S. and Christensen, B.T. (Eds.) Managing Soil Quality: Challenges in Modern Agriculture. CABI Publishing, Wallingford, UK, chapter 1, pp. 1-16.

Van den Akker, J.J.H. and Schjønning, P. (2004) Subsoil Compaction and Ways to Prevent It. In: Schjønning, P.; Elmholt, S. and Christensen, B.T. (Eds.) Managing Soil Quality: Challenges in Modern Agriculture. CABI Publishing, Wallingford, UK, chapter 10, pp. 163-184.

Schjønning, P.; Munkholm, L.J. and Elmholt, S. (2003) Jordkvalitet og dyrkningsmetoder. [Soil quality and management.] In: Holmstrup, M. (Ed.) Økologisk landbrug og naturen - gør økologisk landbrug en forskel for natur og miljø?. Miljøbiblioteket, no. 1. Gads Forlag, chapter 1, pp. 9-19.

Web product

Schjønning, P. and Munkholm, L.J. (2004) Organisk stof i jord - hvor meget er nok og hvor lidt er kritisk? . Online at http://www.foejo.dk/enyt2/enyt/april04/ostof.html.

This list was generated on Sat Aug 16 09:59:46 2025 CEST.