Information Management to Maximize Your Yields

Identify and Correct Nutrient Deficiencies with Tissue Testing

NutriSolutions by Winfield

After using the NutriSolutions® tissue sampling and analysis results for the past 5 years to detect and rectify nutrient deficiencies, farmers around the country have started to anticipate which nutrients need to be applied at specific times. This knowledge is good to implement into a crop management plan, but it doesn’t mean you should bypass continuous tissue sampling.

“Every year presents different growing conditions, so it’s important to continue to identify the needs of your crop by having tissue samples evaluated by the NutriSolutions® analysis,” says Tim Eyrich, WinField Manager of Product Development for Plant Nutrition, Seed Treatments and Plant Growth Regulators. “For example, corn will usually be deficient in zinc (Zn), sulfur (S) and boron (B) around V5 because it uses a fair amount of those nutrients during its early growth stages.

So, it’s a safe bet that your crop will experience yield advantages if you apply WinField® MAX-IN® Ultra ZMB® plant nutrients at this time. But it’s harder to predict whether your crop will be deficient in nutrients like nitrogen (N), phosphorus (P) or potassium (K) at V5 because those deficiencies can result from environmental conditions or problems that occurred during planting.”

“In addition to potential denitrification concerns, we expect to see restricted root growth this year due to sidewall compaction and tillage issues that might occur when working the wet soils,” Eyrich continues. “Therefore, it would be risky to assume that an adequate supply of N, P and K is getting to the crop.”

Farmers collectively submitted more than 70,000 plant tissue samples to be evaluated by the NutriSolutions® analysis in 2013. Of that, some significant trends were observed in the following crops:

• Nearly 80 percent of samples taken were deficient or responsive in Zn
• 60 percent deficient or responsive in B and S

• 40 percent of samples were deficient or responsive in manganese (Mn)
• 45 percent deficient or responsive in copper (Cu)