What if the guy seeded his canola on May 25, might that have turned out different?Anyone that tried to seed at 2-3lbs last year probably regretted it.
Half that crop barely germinated, a lot died under the dry crust of top soil the wind blew nice and hard, beatles chewed a bit, and then it finally rained around june 12 and then the rest came through. Having the extra seed in the ground was insurance, not a cost in that case.
I didn't watch the video but agree with what you are saying here. Actually my planter did a trial last year on 15" and I won't post the results because I didn't do it and it wasn't against my disc drill, but watching it was obvious that weed control is more of an issue on even 15".Very interesting video. Thanks for sharing. Their research casts a lot of doubt on much of what I said in my previous post. They found emergence was much the same between the air drill and the planters. It was very interesting to learn that the 20" spacing just doesn't seem to work very well (and for logical reasons). 12" seems to be the sweet spot.
Also I found the response to phos to be interesting. High rates of phos in the air drill and 12" planter increased yield, even though it hurt emergence.
The phos thing in the seedrow is important IMO. I am well past recommended rates of 11-52 in the seedrow and it clearly is working.
I have been harping on the low seeding rates for quite some time, one example here: http://www.thecombineforum.com/forums/23-crop-production/324129-canola-plant-density.html
What I am about to say will probably offend some people but here goes.... canola does not need to be singulated. The main reason that the planter guys are having success is because they are able to meter a proper low seeding rate and place it accurately(depth). Most all of those guys are not otherwise using a good modern independent opener drill. So.....if you have a good drill with accurate seed placement and can meter and distribute the seed relatively well, then canola will adjust by branching to where it needs to go. Important that when doing the lower seeding rates branching is a major part of the plant stand. In this case a narrow row spacing(I am on 7.5") works well because it increases the randomness of seed placement by a factor of 2 over a 15" spacing planter.
Now if the idiots that run this forum would get the picture thing together I would post a picture of zero-till 15" soybeans using row cleaners to make a black furrow. While it worked nice my concern is that one big wind and those furrows would be full of straw, and with a little canola seedling that's a problem.