An environmental study of a hygiene substance used in animal buildings Finn Eiland (D.Sc., Head of department) Danish Institute of Agricultural Sciences Department of Crop Physiology and Soil Science Research Centre Foulum P.O. Box 50 DK-8830 Tjele Dir tel: +45 8999 1862 Fax +45 8999 1619 E-mail: Finn.Eiland@agrsci.dk Contents • Introduction • Materials and methods o Slurry types and addition of Stalosan ® F o Field experiments o Samplings of slurry, soil and crops o Slurry o Soil o Crops o Chemical methods o Soil and slurry analyses o Microbiological methods • Results and discussions o Chemical parameters in soil o Copper in the environment o The soil microorganisms and their activity in soil o Microbiological parameters in soil o Chemical parameters measured in slurry o Microbiological parameters measured in slurry o Yields of ryegrass o Copper content in ryegrass • Conclusions (in English) • Konklusioner (in Danish) • Conclusions (in German) • Conclusions (in Spanish) • Conclusions (in French) • Acknowledgements • References
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