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WC Mn/Dakotas | Looking for thoughts on placing N better.
We typically get too wet in the spring/early summer and then get a little on the dry side later in the summer. Lots of heavy ground. Is N banded 4-6" deep in the fall better or worse than having all(or nearly all) the corn's N broadcast and incorporated in the top 1" when we get the spring rains? Most farmers are not sidedressing, although a few are starting to apply 5-15 units early.
This year I saw one grower who spring applied 140-160 units with only around 10 lbs N in 0-12" the first week of July prior to corn tasseling. While other growers in the general area with similar spring broadcast N had 45-100 lbs in the 0-12". Im sure we were breathing N for a week or so this spring. He applied 5-30 gal 28% by Y Drops and saw little to no response. The corn ran 170-200 bu/ac with nearly all cobs filled out the very end.
Clearly this corn had a good root system this year and was able to go down deeper than probably it does most years. Did we not lose as much N up into the atmosphere as we thought and it moved down more than 12 inches? Or did we tap into older, deeper N that we aren't always able to get to every year? | |
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Fall Deep Band vs Spring Bcast Nitrogen in Mn/Dak
