The influence of communal sewage sludge on the content of macroelements in the stem of selected clones of willow (Salix viminalis L.)
2016
Jama-Rodzeńska, Anna | Bocianowski, Jan | Nowak, Władysław | Ciszek, Dorota | Nowosad, Kamila
The problem of uptaking macroelements by plants from sewage sludge is still actual and controversial question. Sewage sludge (the by-product of sewage purification) contains many precious macroelements like N or P, beside heavy metals. These nutrients are used for willow growth and development, and ultimately to obtain high yields of biomass. The paper presents results on the impact of municipal sewage sludge on the concentration of macroelements (N, P, Mg, Ca, Na and K) in the stem of several clones of willow. Field experiment was carried out at Experimental Station Pawlowice (Poland) during the years 2009–2010 on grey-brown soil. Trials were conducted according to two factors and the split-plot method. Following factors were investigated: I—various doses of sewage sludge: 75tha−1 fresh weight of sewage sludge (14.3Mgha−1d.m.) and 150Mgha−1 fresh weight (28.5Mgha−1d.m.) and II—clones (1001 Salix viminalis×dasycladis ssp. Baltica, 1047 Salix viminalis var gigantea, 1053 Orm Valne, 1054 Salix viminalis 082) of Salix viminalis L.
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