Can organic farming help to reduce N-losses? Experiences from Denmark

Nutrient Cycling in Agroecosystems

Volumn 52, Issue 2-3, 1998, Pages 277-287

  Dalgaard, Tommy ^a   Halberg, Niels ^a   Kristensen, Ib Sillebak ^a  

^a DANISH INSTITUTE OF AGRICULTURAL SCIENCES   (Denmark)

Author keywords

Dairy farming; Efficiency; Nitrogen; Organic; Pig farming; Surplus

Indexed keywords

AGRICULTURAL MANAGEMENT; NITROGEN; NUTRIENT DYNAMICS; ORGANIC FARMING;

DENMARK;

EID: 0031761596     PISSN: 13851314     EISSN: None     Source Type: Journal    
DOI: 10.1023/a:1009790722044     Document Type: Conference Paper

References (40)

1. Aarts HFM, Biewinga EE & van Keulen H (1992) Dairy farming systems based on efficient nutrient management. Neth J Agr Sci 40: 285-99
2. Alders JGM (1991) Rådets direktiv af 12. december 1991 om beskyttelse af vand mod forureninger forårsaget af nitrater, der stammer fra landbruget. De Europæiske Fællesskabers Tidende 375(91/676/EEC): 1-8
3. Bendixen I, Jeppesen JH & Krüger A (1997) Atmosfærisk nedfald 1996. Fyns Amt. Odense. 45 p
4. Bleken MA & Bakken LR (1997) The anthropogenic Nitrogen Cycle in Norway. In: Romstad E, Simonsen J & Vatn A (eds) Controlling Mineral Emissions in European Agriculture. CAB International 2: 27-40
5. Conway G (1987) The Properties of Agroecosystems. Agr Syst 24: 95-117
6. Dalgaard T (1997a) Bottom up modelling of scenarios for environmental impact in livestock intensive areas. In: Olesen SE (ed): Alternative Use of Agricultural Land. Paper for NJF-seminar on Alternative Use of Agricultural Land. Danish Institute of Agricultural Sciences. Research Centre Foulum 9-10 June 1997. SP report No. 18
7. Dalgaard T (1997b) Nitrat-direktivet giver problemer. Jord and Viden 5: 10-12
8. Dalgaard T, Halberg N & Kristensen, ES (1997) Use of fossil energy in dairy farming. Analysis and simulation of organic and conventional farming. Danish Institute of Agricultural Sciences. Research Centre Foulum. SH Beretning (in press)
9. Danmarks Statistik (1989) Special extract from Danish Agricultural Statistics. Danmarks Statistik. Copenhagen
10. Danmarks Statistik (1996) Landbrugsstatistik 1995. Danmarks Statistik. Copenhagen. 294 p
11. de Wit CT de (1992) Resource Use efficiency in agriculture. Agr Syst 40: 125-51
12. Doluschitz R, Welck H & Zeddies J (1992) Stickstoffbilanzen landwirtschaftlicher Betriebe - Einstieg in eine ökologische Buchführung? Ber Landwirt 70: 551-65
13. Ekeberg E & Riley H (1995) The long-term fertilizer trials at Møstad, S.E. Norway. In: Christensen BT, Trentemøller U (eds) The Askov Long-Term Experiments on Animal Manure and Mineral Fertilizers, pp 83-97. Danish Institute of Plant and Soil Science, Research Centre Foulum.
14. Grundahl L & Hansen, JG (1990) Atmosfærisk nedfald af næringssalte i Danmark. Miljøstyrelsen. Ministry of Environment, Copenhagen. A6: 1-60. NPo-forskning
15. Halberg N (1996) Resultater fra 2 års afprøvning af etiske regnskaber. Royal Veterinary and Agricultural University, Section for Economy. Copenhagen. 143-178. Miljø- og ressourceindikatorer til brug i et etisk regnskab for husdyrbrug. PhD thesis
16. Halberg N & Jensen CH (1996) Dairy farm production strategy and nitrogen surplus. In: Walter-Jørgensen A & Pilegaard S (eds) Integrated Environmental and economic Analysis in Agriculture, pp 103-21. Statens Jordbrugs- og fiskeriøkonomiske Institut, Copenhagen. ISBN: 0107-5357
17. Halberg N & Kristensen IS (1997) Expected crop yield loss when converting to organic dairy farming in Denmark. Biol Agric Hort 14: 25-41
18. Halberg N, Kristensen ES & Kristensen IS (1995) Nitrogen turnover on organic and conventional mixed farms. J Agric Environ Ethic 8(1): 30-51
19. Jarvis SC (1993) Nitrogen cycling and losses from dairy farms. Soil use manage 9(3): 99-105
20. Korevaar H (1992) The nitrogen balance on intensive Dutch dairy farms: a review. Livest Prod Sci 31: 17-27
21. Kristensen T (1997) Studier i økologiske jordbrugssystemer. Danish Institute of Animal Sciences. Research Centre Foulum. 734: 1-159. Beretning
22. Kristensen ES, Høgh-Jensen H & Halberg N (1995) A simple model for estimation of atmospherically-derived nitrogen in grass/clover systems. Biol Agric Horde 12: 263-76
23. Kristensen ES & Kristensen IS (1992) Analysis of nitrogen surplus and-efficiency on organic and conventional dairy farms. Danish Institute of Animal Sciences. Research Centre Foulum 710: 1-54
24. Kristensen IS & Halberg N (1995) Markens nettoudbytte, næringsstofforsyning og afgrødetilstand på økologiske og konventionelle kvægbrug. In: Kristensen ES (ed). Økologisk landbrag med udgangspunkt i kvægbedriften. Danish Institute of Animal Sciences, Foulum. 4: pp 33-51
25. Kristensen IS & Kristensen T (1997) Animal Production and nutrient balances on organic farming systems. Prototypes. Presentation on the 3rd ENOF workshop: 'Resource use in organic farming', Ancona, 4-5 June 1997. 19 p
26. Kyllingsbæk A (1995) Kvælstofoverskud i dansk landbrug. 1950-1959 og 1979-1994. Danish Institute of Plant and Soil Sciences. Research Centre Foulum. 23: 1-61
27. Langeveld JWA & Overbosch GB (1996): Estimating nutrient surplus and nutrient use efficiency from farm characteristics- An application to private farms in two districts in Poland. Fert Res 45: 221-33
28. Larsen MM, Bak J & Scott-Fordsmann J (1996) Monitering af tungmetaller i danske dyrknings- og naturjorder. Danmarks Miljøundersøgelser. 157: 7-10
29. Larsen P & Sørensen MB (1996) Geografiske data hos Afd. for Arealanvendelse 1996. Danish Institute of Plant and Soil Sciences. Research Centre Foulum. 6: 1-73. SP rapport
30. Magid J & Kølster J (1995) Modelling Nitrogen Cycling in an Eco-logical Crop Rotation- an explorative trial. Biol Agric Hort 11: 77-87
31. Michelsen J (1996) Societal and environmental consequences of different strategies for development and expansion of organic farming systems. In: Kristensen E S (ed) Strategic and Basic Research into Organic Farming Systems with Particular Emphasis on Biological and Environmental Aspects, pp 118-141. Ministry of Agriculture and Fisheries, Copenhagen
32. Ministry of Agriculture and Fisheries (1996) Bekendtgørelse om behov for tilførsel af kvælstof og indhold af kvælstof i husdyrgødning. Plantedirektoratet Ministry of Agriculture and Fisheries, Copenhagen. 702: 4091-4115
33. Stopes C (1995) Nitrate leaching, farming systems and diet- comparative evaluation and research. Biol Agric Hort 11: 33-40
34. Strudsholm F, Nielsen ES, Flye JC et al. (1997) Fodermiddeltabel 1997. Sammensætning og foderværdi af fodermidler til kvæg. Danish Extension Service. Skejby 69: 1-53
35. Sørensen JT, Kristensen ES & Thysen I (1992) A stochastic model simulating the dairy herd on a PC. Agr Syst 39: 177-200
36. Tucker HA, Terhune ALF, Chapin LT, Vandehaar MJ, Sharma BK & Moseley WM (1995) Long-term somatropic and galactopoietic effects of a (1-30) ethyl amide analog of growth hormone-releasing factor. J Dairy Sci 78: 1489-1497
37. van der Werff PA, Baars A & Oomen GJM (1995) Nutrient balances and measurement of nitrogen losses on mixed ecological farms on sandy soils in the Netherlands. Biol Agric Hort 11: 41-50
38. van Keulen H, van der Meer HG & Imke JM (1996) Nutrient balances of livestock production systems in the Netherlands. In: Utilization of local Feed resources in Dairy Cattle. Perspectives of Environmental Balanced Production Systems in the Netherlands, pp 3-18. EAAP Wageningen
39. Vatn A, Bakken LR, Bleken, MA, Botterweg P, Lundeby H, Romstad E, Rørstad PK & Vold A (1996) Policies for reduced nutrient losses and erosion from Norwegian agriculture. Integrating economics and ecology. Norwegian J Agr Sci 23
40. Wagstaff H (1987) Husbandry methods and farm systems in industrialized countries which use lower levels of external inputs: A review. Agr Ecosyst Environ 19:1-27