The effect of soil material and nitrogen fertilisation on growth and development of goldenrod (Solidago virga-aurea L.)
Department of Industrial and Medicinal Plants
Akademicka 15, 20-950 Lublin, Poland
Goldenrod, a perennial medicinal plant (Asteraceae family), is
gathered mainly from nature. Herba Solidaginis, containing
flavonoids and leiocarposide, is considered to be diuretic,
anti-inflammatory, antiphlogistic and non-specific immunostimulant. In Poland
annual demand on this material is high (100 t) and natural
resources are continuously decreasing. The aim of a pot experiment was to
determine the effect of different doses of nitrogen fertilisation on three
soil materials (sandy, silty, and organic - peat moss) on the growth,
development, and yield of goldenrod. The best parameters of growth and the
highest yield of the herb (independently of fertilisation) were obtained
on organic soil material, and the lowest on a sandy one. The highest
content of biological active compounds, however, was found in the herb
grown on sandy soil material (on average: leiocarposide - 784 mg kg-1,
flavonoids - 1.75%). A significantly lower content of leiocarposide was
found on silty, and especially organic, material (635 and 613 mg kg-1).
In the case of flavonoids a significantly lower content was observed on
silty material, while it was similar on the remaining soil materials.
Independently of the soil material, along with increasing nitrogen
fertilisation, an increase was observed in yields and active compounds
(both flavonoids and leiocarposide) accumulation.
Kołodziej B., 2002. The effect of soil material and nitrogen fertilisation on growth
and development of goldenrod (Solidago virga-aurea L.). Folia Horticulturae 14/1: 187-193.