REGULATION OF NITROGEN SUPPLY OF RHODODENDRON HYBRIDS

H.H. Witt
Minimum nitrogen (N) demand of Rhododendron is known as 150 kg N/ha. Due to summer rain periods different methods of N-supply are compared: portioned step fertilization up to real N-requirement and 'window fertilization' using a small indicator plot for adding nitrogen. Soil analysis shows that Rhododendron supplied by minimum N can reach sufficient quality by using 'window fertilization'.
Witt, H.H. (1994). REGULATION OF NITROGEN SUPPLY OF RHODODENDRON HYBRIDS. Acta Hortic. 364, 79-88
DOI: 10.17660/ActaHortic.1994.364.9
https://doi.org/10.17660/ActaHortic.1994.364.9
Window-fertilization, portioned fertilization, nitrogen uptake

Acta Horticulturae