4 treff

nitrogentap i landbruket
Nitrogen som næringsstoff og forurenser
[manuskript: Ragnar Bærug]
Bok Bokmål 1991 · Les boka på nett · Vis mer
Proceedings
Controlled Release Fertilizer Workshop
Bok Engelsk 1991 · Vis mer
Nitrogen transformations in soil following the application of urea or urea-mixed fertilizers, and the effect of urea fertilization of wetland rice under different environmental conditions
by Marit Kjeldby
Bok Engelsk 1988 · Vis mer
Biological fixation of nitrogen for ecology and sustainable agriculture
NATO Advanced Research Workshop "Biological Fixation of Nitrogen for Ecology and Sustainable Agriculture"
Bok Engelsk 1997 · Vis mer