Haku
Viitteet 41-42 / 42
Distribution of nitrate in red beet roots and leaves fertilized with urea or ammonium nitrate
(Maatalouden tutkimuskeskus, 1982)
Effect of fertilizers on the reproduction of Tetranychus telarius (L.), Myzus persicae (Sulz.) and Acyrthosiphon pisum Harris
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1969)