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Raising high yield corn Nitrogen and Sulfur practices/apps?
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Posted 6/30/2020 10:52 (#8345147 - in reply to #8344899)
Subject: RE: Raising high yield corn Nitrogen and Sulfur practices/apps?

East Central Indiana
We went down this road for 10+ years with a planter with no starter. And still currently only go in furrow.

You are on the right path for sure but missing a few things. Remember nitrogen and sulfer only get you so far. Anytime you apply liquid to a corn field ad boron. At Coulter sidedress, y drop, and can be added with fungicide/insecticide app. Also add some zinc at sidedress. It will really help activate mocrobial activity and get your soil working for you. Both boron and zinc are cheap. We are also starting to play with humic acids at counter sidedress.
. It took us several years to get the right program. And timing is the most crucial part when applying nitrogen 3 separate times.

We have similar soils.

150 lb of urea and 100 lb of ams spread and incorporated in front of planter.

Coulter rig sidedress 28%, thiosol, zinc, and humic acid. Don’t get in too big of hurry to sidedress. Sidedressing small corn is just added nitrogen the plant doesn’t really need yet with that amount of urea and AMS.

Y drop with 28%, boron.

This is our first year tissue sampling. Took my first samples 2 weeks ago and sampled again today. Last samples our biggest limiting factor in yield was molybdenum. Due to weather and spraying beans we haven’t been able to apply moly over the top yet but will ASAP.

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