News > CFS TISSUE SAMPLE TRENDS

CFS TISSUE SAMPLE TRENDS

1/18/2019

Dylan Barth, CFS Regional Sales Agronomist

Tissue samples are a great way to monitor Micro and Macronutrient status within a plant.  Monitoring tissue samples throughout the growing season can allow insight into which nutrients are deficient, giving the opportunity to build plans and adjust inputs, helping a plant reach its full yield potential.
 
A question that many people have is when to sample.  V5 is the best time to pull a tissue sample because that is the time when the plant is gearing up to grow the most.  Samples pulled during this timeframe give a good picture of how the plant is sitting for nutrients.  During V5, macronutrients N, P and K levels should be stable.  The most common deficiencies we typically see in our territory are in zinc, boron and manganese, all micronutrients.

Micronutrient Recommendation:
 
If a plant comes back with a micro deficiency, there are a variety of Max-In products that could be utilized.  Max-In products are absorbed into the plant almost immediately.  Often at V5, the roots are not large enough to take up zinc from the soil, Max-In can act as a bridge until the roots grow larger. 
 
Corn takes up most of its nutrients between V8 and VT, so paying close attention to both macro- and micronutrient deficiencies ahead of these stages is critical.
 
-Central Advantage trials showed using Max-In Ultra ZMB gained 3.08 more bushels per acre yield and an average of $5.58 per acre return. 
 
-Applications of a quart of MAX-IN® Zinc micronutrient at V5 on acres showing zinc deficiencies resulted in a 4.55-bushel-per-acre increase by Winfield United conducted trials in 2015.
 
Remember that nutrient deficiencies change from year to year and certain hybrids respond to nutrient applications better than others.
 
Your CFS Regional agronomist can schedule tissue samples on your fields and evaluate nutrient levels throughout the season helping create and adjust input plans to reach full yield potential.