One of our blog readers asked the question, "How did the rains and temperatures affect the results in 2011?"
The following is Don Wysocki's reply:
In my opinion, results of early planted winter canola are subject to the same variation that wheat yields are each year. The 2011 harvest was a good year for yield. The 2012 harvest year was not quite so good, but still a good year.
The difference in early versus Sept 1 planting is the ability to get a consistent stand. The early planting does not increase yield over a September 1 planting if the September 1 planting establishes and has an adequate stand. It is just that its much more difficult to get a stand September 1 than it is June 15. We see yield potential loss after September 20 even with good stands. The two most important factors for canola yield are
- stand establishment and
- bloom period.