In relation to figuring out the best charge of nitrogen in your farm there’s nothing higher than on-farm information.
After a winter of speaking with growers about escalating nutrient costs and probably the most financial charge of nitrogen (MERN), Ben Rosser, corn lead with the Ontario Ministry of Agriculture, Meals and Rural Affairs (OMAFRA) is encouraging growers to run on-farm trials this summer time to assist decide the optimum nitrogen charge for his or her farm.
On this episode of the Corn Faculty, Rosser shares three approaches growers can use to arrange trials. “Often the very best and most correct solution to do it’s to construct a nitrogen response curve or ramp,” he says. On this case, growers can assemble a side-by-side comparability utilizing 5 nitrogen charges, beginning with zero nitrogen or a starter charge. Charges can then be incrementally elevated till they attain 200 lbs to 250 lbs per acre, or an acceptable goal the place the grower feels yield is maxed out for that discipline.
“That will provide you with a ramp and whenever you take a look at it on the finish of the 12 months you will notice the place yields enhance and the place they plateau,” says Rosser. “That optimum nitrogen charge is normally just a little bit earlier than these yields plateau.” (Story continues after the video.)
With the necessity for 5 totally different charges and replication, Rosser concedes that making a nitrogen ramp does require growers to do “a good bit” of labor. A less complicated strategy is to make use of the Delta Yield methodology. Right here, growers can use two charges — zero and the next or “N-rich” charge. The yield distinction between the zero and N-rich charge is used to evaluate the extent of response within the discipline. Growers can merely use the N Charge Evaluator Software at GOCorn.internet to estimate MERN for the sphere with out having to check the 5 charges of nitrogen.
Another choice is what Rosser calls the “30-pound check.” On this case, growers can do one or two strips which are 30 kilos greater or decrease than their regular charge to provide 5 check strips.
“I’ve talked to at least one grower who does this yearly of their corn fields,” notes Rosser. “Over numerous years he’s developed a very nice information set and he is aware of which fields reliably want extra nitrogen, which fields he can minimize charges, and zero in on charges throughout the farm and individually by discipline.”
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