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| Here’s a couple things I would look at.
1) We grow a lot of 70s-80s bushel beans and we can hit the field once with a soil finisher or field cultivator and have a minimal amount of residue. I’m wondering if your issue isn’t starting with how your combine chops and distributes the soybean residue.
2) Just from my personal experience (your soils may be different) when we switched from the standard rubber tired closing system on our Kinze and replaced with Schaffert Zippers, I have not needed to go beyond notch 1 to close the trench and get good seed to soil contact even in notill. Prior to switching closing wheels we were breaking the plastic centers in closing wheels to get the trench closed in some tough notill situations. I’d suggest looking at other closing wheels that firm the soil around the seed and have a similar amount of soil compaction from the seed to the soil surface. It needs to be consistent.
It’s possible the in furrow fertilizer had some influence on emergence especially if it was unusually dry. | |
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Corn Emergence
