The reed canary grass (Phalaris arundinacea L.) cultivated for energy utilization
Strasil, Z.(Vyzkumny Ustav Rostlinne Vyroby, Prague (Czech Republic))E-mail:[email protected] | Vana, V. | Kas, M.
The reed canary grass as a source of energy was tested in field experiments at three different sites in 1996-2003. Effects of different environmental factors including nitrogen fertilization (0, 30, 60 kg/ha) on crop yield and other variables were investigated. The influence of year, site and N fertilization on phytomass yield were highly significant. The reed canary grass responded positively to increasing doses of N by increasing phytomass yields. Thirty kg/ha of N increased dry phytomass yields harvested in November by 14.6%, 60 kg/ha by 32.8% on average. The yields varied considerably according to the site. Late harvesting dates resulted in a decrease of the yield (8.41 t/ha in July, 8.00 t/ha in November and 6.04 t/ha in March) as well as the average water content (64.3% vs. 45.2% vs. 21.5%); on the contrary, the energy value increased slightly (16.9 vs. 17.0 vs. 17.2 GJ/t).
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