TY  - CONF
ID  - orgprints11946
UR  - http://orgprints.org/11946/
A1  - Hansen, Sissel
A1  - Bakken, Anne Kjersti
Y1  - 2008///
N2  - The content of sulphur (S) in grassland on 27 Norwegian organic farms with dairy or sheep production was investigated in 2001 and 2002. The forage content of S was below the norms (2 g S kg DM-1) for both plants and animals in a large proportion of the samples. The average S content in forage at dairy farms was 1.4 g S kg DM-1 and at sheep farms 1.5 g. Even on grasslands with low plant S content (<1 g S kg DM-1), S-fertilization did not increase yields and increased the plants? S content only very slightly. No indications of S deficiency were observed on the dairy farms. For one sheep farm with a forage S content of 1.1 ± 0.1g S kg DM-1, brittle and short winter wool was reported.
PB  - ISOFAR
VL  - II
KW  - forage
KW  -  dairy cattle
KW  -  deficiency
KW  -  grassland
KW  -  ruminant
KW  -  sheep
KW  -  mineralsip
ED  - Neuhoff, Daniel
TI  - A discussion of norms for S supply in organic farming based on content in forage and ruminant performance in Norway
SP  - 160
AV  - public
EP  - 163
ER  -