John Roy Porter
Professor emeritus
Afgrødevidenskab
Højbakkegård Allé 13
2630 Taastrup
ORCID: 0000-0002-0777-3028
- Udgivet
A model for fossil energy use in Danish agriculture used to compare organic and conventional farming
Dalgaard, T., Halberg, N. & Porter, John Roy, 2001, I: Agriculture, Ecosystems & Environment. 87, s. 51-65 15 s.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
- Udgivet
Challenges in designing ecological agriculture education: a Nordic perspective on change
Francis, C. A., Lieblein, G., Helenius, J., Salomonsson, L., Olsen, H. & Porter, John Roy, 2001, I: Renewable Agriculture and Food Systems (Print Edition). 16, 2, s. 89-95 7 s.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
- Udgivet
Experimental variability in wheat responses to elevated CO2 and ozone: an analysis of open-top chamber experiments by means of mechanistic simulation
Ewert, F. & Porter, John Roy, 2001. 2 s.Publikation: Konferencebidrag › Paper › Forskning
- Udgivet
Organic movement reveals a shift in the social position of science
Mørkeberg, A. & Porter, John Roy, 2001, I: Nature. 412Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
- Udgivet
The ¤use of phenological data and models in a pest risk analyses for karnal bunt (Tilletia indica) in wheat across Europe
Ewert, F., Porter, John Roy, Miglietta, F., Gioli, B., Baker, R. & Sansford, C., 2001, The ¤times they are changing : book of abstratcs. s. 15 1 s.Publikation: Bidrag til bog/antologi/rapport › Bidrag til bog/antologi › Forskning
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Food security and food production systems
Publikation: Bidrag til bog/antologi/rapport › Bidrag til bog/antologi › Forskning › fagfællebedømt
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Emergy signature as a basis for sustainability valuation of agro-ecosystems
Publikation: Konferencebidrag › Poster › Forskning
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Risks associated with Tilletia indica, the newly-listed EU quarantine pathogen, the cause of Karnal bunt of wheat: EC 5. framework project QLK5-1999-01554
Publikation: Bog/antologi/afhandling/rapport › Rapport › Forskning
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