Dropping nitrogen fertilizer is dear to the underside line, and to our surroundings. Managing losses begins with figuring out how N is misplaced, the place it’s most susceptible to loss, and utilizing the know-how we’ve got to attenuate these losses.
For this episode of The Agronomists, host Lyndsey Smith is joined by Ray Dowbenko and Peter “Wheat Pete” Johnson to speak about split-app N, N stabilizers, and managing N losses.
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- Props. And Ray seems to be in a tanning mattress. Roast rabbit anybody?
- 50 methods to lose your…N
- What’s the enormity of what we’re attempting to forestall right here? If the crop’s not rising, you’re trying on the alternative for N loss. Monetary prices to grower. Detrimental impacts on the underside line, AND the atmosphere.
- Within the U.Okay., urea is perhaps banned due to the losses that may come off of urea.
- Irrespective of how small the losses are, all of them snowball after they’re coming off of so many acres
- Overview the N cycle, please
- Clip 1: Heavy Rains, Nutrient Losses and the Case for “Variable Source” Nitrogen with John Heard
- A fast assessment of how we lose N…
- As soon as urea hydrolyzes to ammonium, then converts into nitrate, it could actually leach or probably undergo denitrification. Excessive floor vs low floor. Perceive the place the losses are!
- Be sure that the situations are proper for banding in anhydrous
- Any time that the soil will keep moist for an prolonged time period (excessive clay content material, saturated soil) that’s when denitrification losses will happen
- How necessary is that N inhibitor for volatilization losses should you’re making use of to dry floor, and have little or no expectation of sufficient rainfall? Specifically, UAN the place solely 50 per cent is within the urea type? Mush on the floor is a baaaaaad factor
- Know your soil kind, know your danger
- That N app on winter wheat proper now? Pete says it’s too early on massive wheat, and on small wheat it ought to already be on. Don’t assist the small, too-numerous tillers.
- Volatilization potential, decrease when cooler
- Soil temperature at all times issues. What can be the best temperature to floor apply 28 or 32 per cent, and what is an effective rule for getting that floor utilized product included? If included, so long as you do job, then the temperature gained’t matter as a lot. If it’s on the floor, the decrease the temperature, the higher.
- Utilizing streamer bars to use UAN to wheat, what quantity of rain is required to include?
- What would’ve been Clip 2 (and we’re going to throw it in right here anyway): Wheat College: Defend seed and N losses with enhanced effectivity fertilizer
- Clip 3: Corn College: Cut up Making use of Nitrogen for Most Profit
- Okay. Which crop are we speaking about right here? Wheat or corn? Pete goes over each
- What’s improper with cut up nitrogen? Pete used the phrase dangit, however Ray would nonetheless prefer to unpack it.
- In a dry state of affairs on the prairies, put 60 to 70 per cent within the floor at seeding, says Ray. Then put the remainder on in-season (if the rain is gonna come)
- Is a split-app nonetheless suggested for corn, should you use liquid starter on the planter and dry within the strip until at 6″ on sandy loam soils?
- Ray, how a lot of your analysis was achieved in dry years, and what are your ideas on water pushed yield potential know-how?
- We have now to measure to handle!
- Publish anthesis software: 10 gal /ac UAN plus 10 gal/ac of water as quickly as anthesis is accomplished. Dissolved urea higher because it burns much less! (Editor’s word, agreed, there’s concern for burn) Do it at evening, greater humidity, massive droplets
- You don’t get numerous foliar uptake, so don’t goal the leaves y’all (simply because you’ll be able to, doesn’t imply you must…)
- If you wish to harass, we imply, politely ask Ray some questions, we’ve acquired his contact information.
- Similar goes for Pete, however he’s simpler to come up with: you’ll be able to name him at 1-888-746-3311, ship him a tweet (@wheatpete), or e mail him at [email protected]