998 resultados para Alho, Olli: Sikari aamusta yöhön
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Kirja-arvio
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Virallisten vastaväittäjien oikeusneuvos Pirkko-Liisa Haarmannin ja professori Olli Mäenpään Helsingin yliopiston oikeustieteelliselle tiedekunnalle antama 17.3.2006 päivätty lausunto
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English summary: Use of copyrighted works and linking in the online environment (s. 723-724)
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Kirja-arvio
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The objective of this work was to evaluate the effect of biochar application on soil nitrous oxide emissions. The experiment was carried out in pots under greenhouse conditions. Four levels of ground commercial charcoal of 2 mm (biochar) were evaluated in a sandy Albaqualf (90% of sand): 0, 3, 6, and 9 Mg ha-1. All treatments received 100 kg ha-1 of N as urea. A cubic effect of biochar levels was observed on the N2O emissions. Biochar doses above 5 Mg ha-1 started to mitigate the emissions in the evaluated soil. However, lower doses promote the emissions.