Publikationer

Artikler i internationalt anerkendte tidsskrifter
Debosz, K., Vognsen, L. & Labouriau, R. 2002. Carbohydrates in hot water extracts of soil aggregates as influenced by long-term management. Communications in Soil Science and Plant Analysis 33, 623-634.

Jensen, U.B., Elmholt, S. & Labouriau, R. 2000. Distribution of ergosterol in organicallly and conventionally cultivated agricultural soils. Biological Agriculture and Horticulture 18, 113-125.

Munkholm, L.J. & Kay, B.D. 2002. Effect of water regime on aggregate tensile strength, rupture energy, and friability index. Soil Science Society of America Jornal 66, 702-709.

Munkholm, L.J., Schjønning, P. & Petersen, C.T. 2001. Soil mechanical behaviour of sandy loams in a temperate climate: case-studies on long-term effects of fertilization and crop rotation. Soil Use and Management 17, 269-277.

Munkholm, L.J., Schjønning, P., Debosz, K., Jensen, H.E. & Christensen, B.T. 2002. Aggregate strength and mechanical behaviour of a sandy loam under long-term fertilization treatment. European Journal of Soil Science 53, 129-137.

Munkholm, L.J., Schjønning, P. & Kay, B.D. 2002. Tensile strength of soil cores in relation to aggregate strength, soil fragmentation and pore characteristics. Soil & Tillage Research 64, 125-135.

Munkholm, L.J., Schjønning, P. & Rasmussen, K.J. 2001. Non-inversion tillage effects on soil mechanical properties of a humid sandy loam. Soil & Tillage Research 62, 1-14.

Schjønning, P., Elmholt, S., Munkholm. L.J. & Debosz, K. 2002. Soil quality aspects of humid sandy loams as influenced by organic and conventional long-term management. Agriculture, Ecosystems & Environment 88, 195-214.

Schjønning, P., Munkholm. L.J., Moldrup, P. & Jacobsen, 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, xxx-xxx (in press).

Ph.d.-afhandling
Munkholm, L.J. 2001. Soil fragmentation and friability: Effects of soil water and soil management. ph.d. thesis, 70 pp.

Indlæg ved kongresser, symposier o.l
Elmholt, S.E., Debosz, K., Schjønning, P., Munkholm, L.J. & Rasmussen, P. 1997. Jordens frugtbarhedsmikrobiologi og jordstruktur. Side 107-124 i: Kristensen, E.S. (red.): Proceedings fra temadag om økologisk planteproduktion. SP-rapport 15-1997. Danmarks JordbrugsForskning.

Elmholt, S., Debosz, K., Munkholm, L.J. & Schjønning, P. 2000. Biotic and abiotic binding and bonding mechanisms in soil. Proceedings, NJF-seminar No. 310: Soil stresses, quality and care. Ås, Norway.

Elmholt, S., Munkholm. L.J., Debosz, K. og Schjønning, P. 2000. Biotic and abiotic binding and bonding mechanisms in soils with long-term differences in management, pp. 53-62. In: Elmholt, S., Stenberg, B., Grønlund, A. & Nuutinen, V. (eds), Soil Stresses, Quality and Care. Proceedings from NJF Seminar 310, 10-12 april 2000, Ås. DIAS Report 38, Danish Institute of Agricultural Sciences, Foulum.

Elmholt, S., Stenberg, B., Grønlund, A. & Nuutinen, V. (eds) 2000. Soil stresses, Quality and Care. Proceedings from NJF Seminar 310, 10-12 April 2000, Ås. DIAS Report 38, Danish Institute of Sciences, Foulum. 179 pp.

Munkholm, L.J. & Schjønning, P. 1997. Soil tilth and the quantification of soil friability. Symposium abstract: Soil quality and soil degradation, Royal Veterinary and Agricultural University, 19-20.

Munkholm, L.J., Schjønning, P. & Rasmussen, K.J. 1998. Non-inverting soil tillage as a means of optimizing soil tilth. Proceedings, NJF-seminar no. 286, Soil tillage and biology, Ås, Norway, June 8-10th, 1998.

Munkholm, L.J., Schjønning, P. & Rasmussen, K.J. 1999. Compaction and intensive tillage effects on aggregate tensile strength and soil friability. Abstracts, International workshop of ISSS-Commission I: Soil physics, subsoil compaction and soil dynamics - processes and environmental consequences. 24-26 March 1999, Kiel, Germany.

Munkholm, L.J. 2000. Bulk soil tensile strength measured in a direct tension test. Proceedings, 15th ISTRO Conference, Texas.

Munkholm, L.J., Schjønning, P. & Rasmussen, K.J. 2000. Non-inverting tillage: Earlystage effects on soil mechanical behaviour. Proceedings,15th ISTRO Conference, Texas.

Munkholm, L.J. 2000. A direct tension test for measurement of bulk soil tensile strength. Proceedings of the 15th international conference of the international soil tillage research organization, "ISTRO-2000". (CD-Rom). Ed. J.E. Morrison. Published by P. Dyke, Texas Agricultural Experiment Stations, Temple, Texas USA, 9 pp.

Munkholm, L.J., Schjønning, P. & Rasmussen, K.J. 2000. Non-inverting tillage: Early-stage effects on soil mechanical behaviour. Proceedings of the 15th international conference of the international soil tillage research organization, "ISTRO-2000". (CD-Rom). Ed. J.E. Morrison. Published by P. Dyke, Texas Agricultural Experiment Stations, Temple, Texas USA, 9 pp.

Nielsen, A.L., Munkholm, L.J. & Andersen, M.N. 2000. Effect of soil compaction on root development during the establishment of a pea-barley crop. Proceedings of the 15th international conference of the international soil tillage research organization, "ISTRO-2000". (CD-Rom). Ed. J.E. Morrison. Published by P. Dyke, Texas Agricultural Experiment Stations, Temple, Texas USA, 9 pp.

Schjønning, P. 1997. Soil compaction, an important aspect of the quality of cultivated soils. Symposium abstract: Soil quality and soil degradation, Royal Veterinary and Agricultural University, 31-32.

Schjønning, P., Munkholm, L.J., Debosz, K. & Elmholt, S. 2000. Multi-level assessment of soil quality. Proceedings, NJF-seminar No. 310: Soil stresses, quality and care. Ås, Norway.

Schjønning, P. 2000. Jordens frugtbarhed og kvalitet. Tidsskrift for Landøkonomi 4/00, 290-292.

Schjønning, P., Munkholm, L.J., Debosz, K. & Elmholt, S. 2000. Multi-level assessment of soil quality - linking reductionist and holistic methodologies, pp. 43-52. In: Elmholt, S., Stenberg, B., Grønlund, A. & Nuutinen, V. (eds), Soil stresses, Quality and Care. Proceedings from NJF Seminar 310, 10-12 April 2000, Ås. DIAS Report 38, Danish Institute of Sciences, Foulum.

Schjønning, P., Munkholm, L.J., Elmholt, S., Debosz, K., Mikkelsen G.H. & Trautner, A. 2000. Den Danske dyrkningsjords tilstand og kvalitet - konsekvenser af trafik og jordbearbejdning. Tidsskrift for Landøkonomi 4/00, 293-300.

Rapporter m.m.
Elmholt, S. & Axelsen, J. Aa. 1999. Jordens biologi, pp. 51-68. In: Alrøe, H.F. & Andreasen, C.B. (red). Natur, miljø og ressourcer i økologisk jordbrug. Føjo Rapport 3. Forskningscenter for Økologisk Jordbrug, Foulum.

Munkholm, L.J., 2000. The spade analysis – a modification of the qualitative spade diagnosis for scientific use. DIAS Report No. 28 Plant Production, Danish Institute of Agricultural Sciences.

Debosz, K., Vognsen, L., Munkholm, L.J. & Schjønning, P. 1998. Impact of soil management on distribution of carbohydrate C and clay dispersibility in different sized soil aggregates. Proceedings, NJF-seminar no. 286, Soil tillage and biology, Ås, Norway, June 8-10, 1998.

Faglige artikler
Elmholt, S. & Axelsen, J.Aa. 1998. Jordbundens Biologi, pp. 24-46. I: Økologisk Jordbrug – miljø og husdyrvelfærd. Notat til Det Økologiske Fødevareråd i forbindelse med udarbejdelsen af Aktionsplan II for fremme af den økologiske fødevareproduktion i Danmark.

Elmholt, S & Schjønning, P. 1997. Jordens frugtbarhed. Forskningsnytt om økologisk landbruk i Norden, nr. 9, 2-3.

Elmholt, S., Debosz, K & Knudsen, I.M.B. 1996. Den frugtbare jord: Dyrk naturens eget forsvar. Agrologisk, 3 (1996), 18-19.

Elmholt, S., Schjønning, P. & Munkholm, L.J. 1997. Økologi og forskning. Landbrugsmagasinet 26, 7.

Munkholm, L.J. 1999. Stik spaden i jorden. Økologisk jordbrug, 194, 11.

Munkholm, L.J. 1999. Spadeprøve testet i forsøg. Økologisk jordbrug , 194, 11.

Munkholm, L.J., Schjønning, P., Nielsen, L. & Rasmussen, K.J. 1999. Økologisk planteavl og jordpakning. Planteavlsberetning for Køge-Ringsted Landboforening, 187-189.

Schjønning. P. 1996. Den frugtbare jord: Jordstrukturen skal plejes som din vigtigste afgrøde. Agrologisk, 3 (1996), 16-17.

Schjønning. P. & Elmholt, S. 1996. Den frugtbare jord: Frem med spaden. Agrologisk, 3 (1996), 20-21.

Schjønning, P. 1998. Jordpakning koster vedvarende udbyttetab. Landsbladet-Mark 10-98, 26-27.

Schjønning, P. 1998. Sådan minimerer du pakning af jorden. Landsbladet-Mark 10-98, 28.

Schjønning, P., Munkholm, L.J., Elmholt, S., Debosz, K & Jensen, U.B. 1999. Jordens strukturegenskaber - et centralt element i frugtbarhedsbegrebet. MILJØFORSKNING, 39, 7-14.

Schjønning, P., Munkholm, L.J. & Rasmussen, K.J. 1999. Økologer skal køre med små vogne. Økologisk Jordbrug, nr. 187, p. 11.

Schjønning, P. Munkholm, L.J. & Rasmussen, K.J. 1999. Jordpakning og jordløsning. Effektivt Landbrug, nr. 11, p. 8-9.

Anden formidling
Elmholt, S. 1996. Jordens frugtbarhed. Poster ved Den økologiske Verdensudstilling, 10.08-13.08 1996, København

Elmholt, S. 1998. Fungi as Biological Indicators - experiences from studies on different farming systems. Oral presentation at workshop on "Soil Biology in Relation to Sustainable Land Use", NKJ and SNS, SLU Uppsala, January 15-16th 1998.

Elmholt, S. 1998. Jordens Frugtbarhed. Poster ved Narurvidenskabsfestival 1/10 1998 og Åbent hus 3/10 1998.

Schjønning, P. 1998. Jordpakning - en trussel mod jordens frugtbarhed. Bilag til foredrag ved Landbrugskonsulenternes Efterårsseminar, Nyborg Strand, 30. september 1998, 6 pp.

Schjønning, P. 1999. Konsekvenser af nuværende praksis i marken. I: Priesholm, M. (Ed.) Jordbearbejdning og jordfrugtbarhed. Rapport fra et seminar afholdt af Landsforeningen Økologisk Jordbrug 27. september 1999. pp. 8-10.

Publikationer udarbejdet i projektperioden, med indirekte tilknytning til projektet
Debosz, K., Rasmussen, P.H. & Pedersen, A.R. 1999. Temporal variations in microbial biomass C and cellulolytic enzyme activity in arable soils: effect of organic matter input. Appl. Soil Ecol. 394, 1-10.

Kling, M. & Jakobsen, I. 1998. Arbuscular mycorrhiza in soil quality assessment. AMBIO, 27, 29-34.

Knudsen, I.M.B., Debosz, K., Hockenhull, J. Jensen, D.F. & Elmholt, S. 1999. Suppressiveness towards brown foot rot of barley of soils under organic and conventional management. Applied Soil Ecology, 12, 61-72.

Olsson, P.A.., Bååth, E. & Jakobsen, I. 1997. Phosphorus effects on the mycelium and storage structures of an arbuscular mycorrhizal fungus as studied in the soil and roots by analysis of fatty acid structures. Applied and Environmental Microbiology, 63, 3531-3538.

Olsson, P.A., Thingstrup, I., Jakobsen, I. & Bååth, E. 1999. Estimation of the biomass of arbuscular mycorrhizal fungi in a linseed field. Soil Biology and Biochemistry 31, 1879-1887.

Oyedele, D.J., Schjønning, P., Sibbesen, E. & Debosz, K. 1999. Aggregation and organic matter fractions of three Nigerian soils as affected by soil disturbance and incorporation of plant material. Soil & Tillage Research, 50, 105-114.

Rasmussen, K.J. 1999. Impact of ploughless soil tillage on yield and soil quality: A Scandinavian review. Soil & Tillage Research, 53, 3-14.

Rasmussen, P.H., Debosz, K., Elmholt, S., Schjønning, P. & Jensen, D.F. The use of fluorogenic substrates to measure cellulolytic activity of b-glucosidase, cellubiohydrolase and endocellulase in differently cultivated soils. Soil Biology and Biochemistry (accepted).

Schjønning, P. & de Jonge, H. 1999. Experimental test of the applicability of a multisensor photosedimentation technique for the measurement of soil particle distributions. Communications in Soil Science and Plant Analysis, 30, 1773-1788.

Schjønning, P., Thomsen, H. & Olesen, J.E. 1997. Effects of secondary tillage strategy on soil and crop characteristics. Proceedings of the 14th Conference of the International Soil Tillage Research Organization. Fragmenta Agronomica, 2B/97, 579-582.

Schweiger, P.F. & Jakobsen, I. 1999. Direct measurement of phosphorus uptake by native arbuscular mycorrhizal fungi associated with fieldgrown winter wheat. Agronomy Journal, 91, 998-1002.

Planlagte publikationer
Debosz, K., Vognsen, L. & Laborioau, R. Carbohydrates in hot water extracts of soil and soil aggregates as affected by long-term management and short-term turnover of organic amendments (in manuscript).

Munkholm, L.J., Schjønning, P. & Rasmussen, K.J. Non-inverting soil tillage: a means of optimising soil tilth in organic farming systems (in manuscript).

Munkholm, L.J. & Schjønning, P. Long-term effects of manuring and crop rotations. II. Soil mechanical characteristics (in manuscript).

Schjønning, P. & Munkholm, L. Long-term effects of manuring and crop rotations. I. Soil pore characteristics (in manuscript).

Endvidere er der gennem projektperioden afholdt i alt 25 foredrag for studerende, konsulenter og landmænd mm. Hertil kommer præsentation af forskningen gennem deltagelse i radio og TV-programmer (i alt 2 radio- og 2 TV-indslag). Endelig kan nævnes debatindlæg i fagbladene.