North Central Ohio, across the Corn belt ! | agger802 - 6/14/2010 22:11
So the plant samples you sent into the lab had the deficiency symptoms at that time and your test shows adequate to excessive? Interesting?
What was you iron reading? I had the same thing in 2008 and when I sent mine in, it came back excessive in iron. We had deep ripped a farm that had never been ripped (ever I imagine), and the roots were hitting the acid subsoil much earlier than normal. We attributed the solubility of the iron in the acidic subsoil to the excessive iron uptake in the plant. MU called it iron toxicity.
What is your thought here soil-life....
could be Brad, with underlying heavy clay, Blue or gray clay especially, Or such as some of Your Gumbo ? after sub-soiling into the anaerobic acid soil zone you can, quite often see what I would call a back flush Upward to the root during , or after a heavy wet spell !!! Regardless of the PH ? or Nutrient situation in the top root zone area !
It is Transitional and after a few years of corrective tillage and Calcium applications these Iron toxicity's will dwindle over time
At that time I have also seen Farms Transition into a Successful Strip and or No-till future |
Sulfur deficiency or maybe not
