Advantages of wide row spacing. The wider the row spacing the more residue you can clear with a hoe type seeder. This definitely has an impact if you are farming in the moister areas of the province where there is traditionally a large amount of straw is grown. The draft will be similar. You also have to make a judgment call on whether you believe you can have a better crop on the entire farm if you are able to seed it in a shorter time period compared to having some crop seeded early and some seeded late.
Weeds are very easy to identify between the rows.
Most farmers that move to wide row spacing are committed to straight combining. With these wider row spacing you need to have a seeder with double shoot capabilities or apply your fertilizer in a separate operation. Whatever you choose for a row spacing on your seeder you can have a larger impact on yield with many of your other management decisions.