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| Thank you for the responses everyone! I think we might go with the elemental sulfur, it will be nice to be able to put on a separate rate of sulfur not attached to our MES-Z as our Phos levels are just too high to justify continuing to put on heavy rates of MES-Z.
James, our soils do not call for any additional K. My grids from 2015 averaged 600 ppm, we are however fairly low on Chloride from years of not applying K. We are primarily running the dry Potash for the chloride as it is the cheapest mode of Chloride. We only run about 20-25 lbs of Red potash so getting about 10 lbs of Chloride. I have a neighbor who said he has ran red potash and some kind of chloride product without the potash and he said he saw a yield bump from the potash so he has continued to use it versus just straight chloride. I have ran quite a few trials in corn and have not seen a definitive yield response to the Potash in corn. I am wondering if we aren't seeing a yield bump in the following wheat from the additional chloride already being in the soil leftover by the corn.
We aren't actually strip tilling, we built a no-till low disturbance single disc opener spaced on 30"s to inject the fertilizer. It moves a little more soil than we had hoped but we really had good luck with running it otherwise. The reason we are using UAN as our N source is simply speed of loading and urea in the spring is a nightmare in pipes. Plugs constantly in our experience and I need the dry tank space for the P,K,S,Z. We would be filling constantly using urea. NH3 is a no no in our dryland soils in our experience. We can fill with UAN pretty fast and can carry quite a bit of product so it's just easier. Not the most cost effective but we are saving enough on the dry P, K, S, Z to easily justify running liquid N.
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(Photo May 18, 12 17 41 PM.jpg)
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