Available Online: http://www.ejpau.media.pl/volume16/issue4/abs-08.html
THE EFFECT OF COMPOST FROM POST-CONSUMER WOOD ON VEGETATIVE GROWTH OF CANNA X GENERALIS L.H. BAILEY
Hanna Wróblewska1, Anita Schroeter-Zakrzewska2
1 Environmental Protection and Wood Chemistry Department, Wood Technology Institute, Poznań, Poland
2 Department of Ornamental Plants, University of Life Sciences in Poznań, Poland
The aim of the study was to identify the effect of composts obtained from
post-consumer wood on the dynamics of vegetative growth and greening of leaves
of canna lily (Canna x generalis L.H. Bailey) ‘Tropical Yellow’.
Two types of composts, marked OPA and OPB, were used in the research. The
composts differed in the additives of urea and macroelements at the stage of
composting. The plants were cultivated on substrate consisting of the composts
and high-moor peat in the following volumetric combinations: compost 100%,
compost 75% + peat 25%, compost 50% + peat 50%, compost 25% + peat 75%, and peat
100% (control). Each combination was used in 11 replications.
The composts from post-consumer wood differed from peat in the content of
macronutrients, pH and salinity. The composts OPA and OPB were characterised
by excessive content of nitrogen (546 and 733 mg∙dm-3), higher salinity
(297 and 430 g NaCl∙dm-3) and a low pH in H2O (pH=3.6 and pH=3.7 respectively).The
levels of macronutrients, pH and salinity of individual substrates were a derivative
of the proportion of compost and peat within the substrates.
The research included determination of the plant height, the number of leaves
and the greening index of leaves (SPAD). The analysis of the obtained results
showed that the type of substrates and its properties had a significant effect
on the vegetative growth and greening of leaves of canna lily. Higher doses of
compost (100 and 75%) in the substrates inhibited the growth of plants compared
to control plants, whereas lower doses (50 and 25%) gave results which were comparable
to control plants.
Key words: waste, wood, composting, peat, SPAD, Canna x generalis.
Environmental Protection and Wood Chemistry Department, Wood Technology Institute, Poznań, Poland
60-654 Poznań, Poland
Department of Ornamental Plants,
University of Life Sciences in Poznań, Poland
D±browskiego 159, 50-594 Poznań, Poland
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