Leaf Tissue Data: Part 5 - Zinc You don't want zinc leaf tissue below 25ppm! Did we find evidence of a phos-to-zinc ratio linked to yield? What is the yield impact of a zinc deficiency?

Regional data subset crunch of 80 Agrimodis R6 tests: Highest yields were within a range of fields in which the biomass N content was -10 lb/ac to +40 lb/ac of applied nitrogen rates. Aka, fields that took up less nitrogen than was applied had worse performance. The bigger the gap, the worse the yield performance. Aka #2, fields that took up over 40 lb/ac of N beyond applied amounts had reduced yield and higher N lb/bu. Aka #3, fields that had N uptake within 40 lb/ac of applied N amounts yielded highest. Yields stayed higher up to 10 lb/ac above uptake. Another note: The right side of the chart shows high levels of luxury levels of N. Some fields contained 100+ lb/ac more N than was applied, yet yields did not follow the trend (see next post in the thread). Once N lb/bu gets past 1.24, things get worse. Excess N is a yield limiter. So is applying anything over 10 lb/ac of excess N, at least in this region. This is represented by the columns on the left side of the gray bar in the top chart.

Coverage is getting greener for 2026 Agrimodis accounts! Expecting to add some southern Wisconsin soon, and hoping to add some OK and AR areas. Corn expected to be going into the ground this week in some areas. Get ready to learn more about your corn crop in a single season than you ever thought possible with Agrimodis! To submit info for 2026 signup, visit the link and submit your contact information: forms.office.com/pages/respo… View our X posts or the Agrimodis YouTube channel to learn more about us!

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