WINNIPEG, Manitoba, March 20 (Reuters) - ICE Canada canola futures rose on Tuesday for the third time in four sessions, helped by limited selling by farmers.
* Slow farmer sales have resulted in a lack of commercial hedges to offset them on the futures market, allowing prices to rise in thin volumes, a trader said.
* Weaker soyoil prices were seen pressuring crush margins and discouraging crushers from buying.
* May canola RSK8 added $2.10 to $519.80 per tonne.
* The May-July canola spread traded 1,593 times.
* Chicago May soybeans SK8 climbed on technical buying. NYSE MATIF May rapeseed COMK8 eased and Malaysian May crude palm oil 1FCPOK8 rose.
* The Canadian dollar CAD= traded at $1.3075 to the U.S. dollar, or 76.48 U.S. cents, at 1:03 p.m. CDT (1803 GMT).