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Planter applied fertilizer, what and how?
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mhagny
Posted 10/13/2018 09:10 (#7044141 - in reply to #7043194)
Subject: RE: Planter applied fertilizer, what and how?


DobsonAG - 10/12/2018 17:22

Didn't hurt anything on the 15acres it was on. We were about as dry as it gets. I'm only talking enough for about .75-1 unit of S. Really only did it to try and make a side by side a little more fair on some expensive low salt starter compared to 10-34-0 zinc standard here product. 2018 definitely are best final populations we've had. Not going to be a normal go to practice. Mine goes on 2" on each side behind disc closers on planter so basically surface with 30-60 units of N. Plus another 10 units down 4-6" with the dry fertilizer on the strip till bar. And a little with a ydrop pass later. I know you don't agree with the deep band either but with the yields we have pushed to since going that route we can't afford not to unless we own the ground and it has great fertility. Rented acres I like banding. Although we band all our own even pit manure with very good results. And we already have great P levels....just not very deep. We cant get that .75" movement downward a year on any soil tests I've pulled at multiple levels. I did enjoy your article and what you accomplish with products and extreme dedication to not till. We just couldn't reach the numbers we do with strip till with our no till. Have a great evening.


That 3/4" of P movement downward per yr comes from Lincoln NE on good soil with moderate pH under long-term NT with diverse rotation. Is your pH quite high?

I would be surprised if deep P placement conferred any yield benefit in your location. I will dig up the article discussing that. It's possible that what you're seeing is from mineralization of other nutrients (S, Cu, etc) from the extra soil disturbance of the banding. It's also possible there's an alteration of planter performance, especially with the strip-till. I.e., it's a challenge to get planters to perform as well in true no-till as they do in tilled soil such as on top of strip-till zones.
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