Importance of Zinc

Micronutrients are just as important as the macronutrients. Zinc is one of the most important micronutrients a crop needs at planting time.  Ensuring crops have zinc will help get the crop off to a good start to reach potential yield.

Zinc is released when organic matter undergoes mineralization.  However; once released zinc doesn’t move in the soil, so it is important to apply zinc at planning.  This allows good contact with plant root for uptake of zinc. The plant will usually uptake only 0.5 lb per acre. The role of zinc in the plant drives metabolic reaction from different enzymes in the micronutrient.  Stimulates the formation of carbohydrates, protein, and chlorophyll. 

Midwest farmers are more likely to experience zinc deficiency because planting is occurring when the soil is cooler and high moisture.  If a deficiency occurs you could lose an average of 15-20 bushels per acre.  There are several factors that could lead to a deficiency.

  1. Cool Soil Temperatures
  2. pH of 7 or higher
  3. Sandy or peat soils with low organic matter
  4. Increased phosphorus levels will reduce zinc availability

Over the past 2 years Centra Sota has submitted 2,435 tissue samples measuring Zinc. Corn samples were submitted from V5-V13, 44.9% of those corn samples were zinc deficient and 8.89% were adequate.  Soybean samples were submitted from R1-R3, 1.8% of soybean samples were zinc deficient and 8.7% were adequate. Conducting a soil and tissue test to determine levels of zinc in your field will help you maximize yield potential.

Utilizing your Centra Sota crop advisor and yield quest tools we can help you gain a better understanding of your soil and plant needs.

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