In 2005–2006 in the experimental field of the Lithuanian Institute of Horticulture,
in the IDg8-k / Calc(ar)i- Epihypogleyc Luvisols – LVg-p-w-cc it was investigated
the influence of fertilizers with nitrification inh ibitor DMPP on the photosynthesis
parameters of carrot cultivar ‘Samson’ (Daucus sativus Röhl.) and their relation with
productivity.