Originally posted by Partners
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CANOLA on CANOLA...profitability or stupidity
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Throw out the book on how Clubroot gets established. I am in west central AB, Clubroot has been east of here, so I grow some clubroot varieties if there is a history of canola, some without.
County found serious clubroot in a first year canola field of mine this year. Never been in canola before, hasn't been in crop for 30 years. No chance of contamination by tillage. Crop was extremely stressed due to spring tillage/compaction, followed by excessive June rain, and nutrient tie up from the sods, and being severely depleted of nutrients from decades of no fertilizer having been applied. Was truflex canola, just for the sake of grassy weed control. Owner wants it back into hay in a few years, so not a big problem, or worth arguing.
A few years ago I had another field in the same situation. first year ever in canola, extremely stressed growing season, shortage of nutrients, county pulled unhealthy plants and claimed to have found clubroot. I protested, they sent more samples and concluded it was inconclusive, has been in canola twice more since then without any sign of clubroot. I purposefully put that small piece back into canola the next year to prove my point( putting the quarter back into one piece), and they found no clubroot.
There are more environmental issues involved than anything.
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I grew canola on some of my land from 1999 to 2013 15 yrs straight I kept an eye out for any abnormal plants or anything that might resemble club root.i never seen any signs of the disease and at the same time my yields rose with my best yields on my year of retirement. If disease would of shown up I would of done things differently but never happened.If I was still farming I would still be doing continuous canola on part of the farm.
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In the 15 yr stretch I grew lots of invigor followed up by either pioneer hybrids or dekalbs. I found my best yields come on the invigor years.Since I have retired I am not familiar with new varieties. Going back to our situation I think there was a little stupidity in this rotation but also lots of profitability.
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I think its a little broader than just clubroot.
What about alternaria black spot and schlerotinia?
Was fungicide always applied?
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Yes schlerotinia seemed to be around at different levels but also showed up in fields grown on wheat stubble,even present on 35 yr grassland.My fungicide applications were very sporatic with mixed results.I probably applied fungicides on 30% of canola Acres.
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Originally posted by kANOLA View PostYes schlerotinia seemed to be around at different levels but also showed up in fields grown on wheat stubble,even present on 35 yr grassland.My fungicide applications were very sporatic with mixed results.I probably applied fungicides on 30% of canola Acres.
I have a neighbour that seeds wheat and then peas , same every year. Never ever had aphenomicies ... ever .
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