Tissue Sampling Shows Low Potassium Levels in Southeast Cotton
June 21, 2021 Helena Agri-Enterprises Agronomists are seeing a startling trend in cotton tissue samples across the Southeastern United States – nearly 3,000 tissue samples were over 65% insufficient in potassium at all growth stages.
It’s important to correct the problem in the weeks before first bloom.
“Potassium is a major player in cotton,” says Josh Gaddy, Helena Agronomist based in North Carolina and a lead researcher behind the study. “It’s very hard to reach the full genetic yield and quality potential of cotton when you’re lacking that much. If you want to get a premium at harvest, you have to focus on fiber quality, and that’s where potassium makes a big difference.”
Potassium plays a critical role in a variety of complex plant functions directly impacting the yield and quality of cotton – enzyme activation, translocation of sugars, protein synthesis, and the movement of water and nutrients throughout the plant. Without it, cotton is subject to water loss and is more prone to drought stress. It’s more susceptible to disease and can suffer from poor performance during critical growth stages.
Helena uses Extractor, its exclusive tissue analysis program, to measure nutrient levels, identify a hidden hunger, and make in-season adjustments to prevent deficiencies that can lead to loss of quality and yield. Once a tissue sample reveals an insufficient level of potassium in the plant, Helena works with growers to create a foliar nutritional plan to correct the problem.
Brian Carroll, Helena Product Specialist based in Georgia, says the goal is to load up the plant early instead of trying to play catch up after bloom.
“You want to make sure cotton has enough potassium when it goes into reproduction and begins the process of filling bolls with lint,” says Carroll. “We recommend a potassium source that fits easily into any spray program. Even though there are a lot of options out there, not all products will deliver the efficiency, compatibility and safety you need.”
Carroll recommends adding Coron Metra 10, a proven product that dates back more than 20 years. As a foliar fertilizer, Metra 10 can address in-season crop needs like potassium. It stays on target longer and increases plant uptake to maximize efficiency and deliver the nutrient safely into the leaf.
Because every field is different, correctly identifying crop needs first is the best way to find the right solutions. To get started with Extractor tissue sampling, cotton growers should contact their local Helena representative.
To find a local retailer and for more information about Helena products and services, visit Helena Agri online.
Based on information provided by Helena Agri-Enterprises
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