Rolla, ND | haybstr67 - 6/29/2012 17:44
I just got back data from 4 fields of corn (waist high). Most elements were ok but all had low zinc and potassium. I put liquid zinc in my starter fertilizer in furrow and had strip tilled last fall, putting 60 units of potash down (100# of product). Is there a problem with availability or do I just need more? Seems like I should have enough on according to soil tests and removal rates of the crop.
You are correct that uptake is not just a factor of availability but also of conditions. For instance you can get potassium deficiency due to things like fallow syndrome or rooting problems.
You might not even be low.
What critical range did the lab use, what were your numbers, and how did you go about sampling the plant. I'm not really aware of a lot of good data on "waist high" corn. |
Tissue analysis
