What’s one of the simplest ways to handle corn residue to mitigate soybean yield loss in a no-till system?
That’s a query College of Wisconsin Madison soybean specialist Shawn Conley hears an increasing number of from growers as each corn yield and the biomass produced by extra prolific hybrids continues to develop.
On this episode of the Agriculture Soybean College, Conley shares outcomes from a Wisconsin trial designed to evaluate completely different strategies of corn residue administration in no-till soybeans. He says a second 12 months of analysis will assist present extra conclusive insights, however 2022 outcomes point out that chopping corn residue within the fall or spring previous to planting produces higher yields than straight no-till. The analysis additionally indicated that soybean yields take one other bounce when nitrogen (30 lbs on this trial) is utilized within the spring.
Trying on the knowledge, Conley says his first takeaway is the truth that growers have choices — they don’t have to show to the plow. “If farmers are challenged with their heavy residue, and so they assume they’re having a yield lower, they don’t need to exit and get that iron out and switch that soil over.”
Conley can also be wanting intently on the function added nitrogen can play in serving to soybeans overcome the affect residue can have on yield. He says growers should do the maths based mostly on nitrogen costs. He doesn’t know what nitrogen will price in 2023, however making use of 30 kilos of N at 50 cents a pound will make sense for a lot of farmers.
“I do know most of us don’t like doing that. However once more, if we will overcome some yield plateau, and if we will preserve the metal out of the sphere, I feel that’s an excellent possibility that perhaps farmers can contemplate and take a look at it on their very own farms subsequent 12 months,” says Conley.
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