Don’t waste day to roll – RealAgriculture

Rolling proper after planting has develop into a typical follow on soybean fields in Western Canada during the last decade, however there are some good causes to think about delaying the timing of rolling till after the crop is up.

Rolling proper behind the planter or drill improves seed-to-soil contact and is unquestionably much less unnerving than rolling a inexperienced subject for the primary time.

That being mentioned, below the fitting (or fallacious?) circumstances, pre-emerge rolling also can end in a compressed high layer or crust that hurts emergence, or a powdery and flat soil floor inclined to blowing as some growers in Manitoba have skilled this spring, notes Bryce Rampton, seed agronomist with Syngenta on this Soybean College episode.

“I feel lots of growers are taking the chance (this yr) to step again and ask ‘was that the fitting factor to do? Can I plan to start out doing a post-emerge roll if I do know it’s going to compact? Or I’ve a lightweight sandy soil, possibly I ought to simply go away the ridges from the furrows and have slightly extra plant progress the place it received’t blow fairly as a lot,’” he says.

Analysis in Ontario has additionally proven a 1.5 to 2 bushel/acre yield profit to rolling soybeans on the first trifoliate stage on a sizzling afternoon, as mentioned in earlier episodes right here and right here.

“Bringing this to Western Canada, it’s good to know there’s not an actual adverse impact to doing it after emergence. So if we run into these conditions pre-emerge the place we are able to’t get it accomplished effectively or are going to make a large number, we are able to wait and count on it to be pretty much as good as a pre-emerge roll,” says Rampton, standing in a soybean subject close to Morden, Man.

Rolling in-crop must be accomplished between the primary and third trifoliate (V1-V3) levels — ideally within the first trifoliate stage, because the plant’s stem develop into stiffer because it grows. “Usually you do lose some, particularly behind the tractor tires, however when you’ve got a subject like this, dropping one to 2 thousand isn’t a giant deal,” he notes.

That being mentioned, for those who’re coping with rocks or seeding gear that leaves giant ridges, rolling is important for harvesting these backside pods on the finish of the rising season.

“Now we have much more air seeders right here in Western Canada, so we get much more ridges. When you’re at that prime threat of loss if we don’t get it rolled, I wish to say don’t waste day to roll,” says Rampton. “If we’ve actually good circumstances the place we’re not going to get compaction or soil erosion, simply get it accomplished.”

Watch/hear as Syngenta’s Bryce Rampton discusses the professionals and cons of the totally different timing home windows for rolling soybeans in Western Canada:

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