Growers who are applying UAN sidedress this season have multiple technologies and practices they can utilize to minimize nitrogen loss to the environment and increase nitrogen efficiency and uptake by the corn crop. Examples include chemical nitrogen stabilizers, cultural Y-drop systems and Extract PBA nutrient release technology, all of which can be used individually or as part of an integrated approach to maximize the benefits of a UAN sidedress application.

Extract PBA is a biocatalyst technology for enhanced nutrient release and mineralization
combined with ammonium thiosulfate, a source of nitrogen and sulfur. By accelerating nutrient mineralization and recycling, Extract PBA can help improve crop growth and vigor, extend nutrient availability to the crop and improve nutrient efficiency when used with UAN sidedress.

How do we know that Extract PBA influences nitrogen availability?

One example comes from research performed at the University of Nebraska-Lincoln. There, at the West Central Research and Extension Center, Extract PBA was applied at 1 gallon per acre onto fallow soil (absent of a growing crop) with a history of manure applications. Soil testing was then performed on the treated and untreated fallow soil every two weeks for four months to determine nutrient availability and assess soil health. 

Extract PBA increased the availability of all pools of nitrogen, including inorganic and potentially mineralizable N pools, compared to the untreated soil.

Agricen's Scott Lay recently spoke with Dennis Michelsen of WITY Radio about sustainable plant health technologies growers can employ this season to enhance yield and ROI. 

Dennis - WITY Radio: Agricen has a booklet about the company's sustainable plant health technologies. Tell us more about that. 

Scott - Agricen: Sustainable practices or technologies can be employed in real-life intensive managed production systems, and not at the expense of yield. They can enhance yield and productivity.

Our technologies, they either benefit the plant, benefit the soil, or both. If we can pair those technologies with traditional production practices, that’s a win-win.

In the NCGA's 2022 National Corn Yield Contest, nearly three dozen winners used Agricen's biocatalyst technologies in their winning programs. They include four farmers who took top places at the national level and 31 who took top places in their states. 🏆

The winning growers used one or more of the following products in their corn fertility programs: Accomplish MAX, Extract PBA, Levitate, Maritime, Terramar and Titan XC. All of these products are available from our partner, Loveland Products, through Nutrien Ag Solutions.

With planters running soon, Agricen's Scott Lay spoke with WITY Radio about utilizing Extract PBA and Accomplish MAX in the spring to minimize early season challenges related to nutrient availability and weather-related stress.

Dennis - WITY Radio: It has been an incredibly mild winter, but Mother Nature likes to change things up and throw a lot of stress our way, and that’s what the products from Agricen are so good at. It’s really a simple concept: Draw out more nutrients and help with the stress.

Scott - Agricen: That’s the essence of it. If you can’t minimize challenges with regard to weather-related stresses or the challenges that soil profiles present in terms of allowing plants to access nutrients, you’re not going to maximize your return.

Dennis - WITY Radio: Talk a little bit about your Extract product.

Scott - Agricen: We designed Extract for the farmer who does not utilize liquid in-furrow starter applications but wants to get that starter-like effect. It is applied in pre-plant broadcast applications with herbicide or liquid fertilizer.

How can growers optimize early-season crop health and get more from their investment in their fertilizers, crops, and soil?

Watch our on-demand webinar, "Early Season Opportunities to Enhance Plant Nutrition & Health," to hear:

• How Accomplish MAX and Extract PBA improve nutrient availability in the soil
• Where these biocatalyst products fit into spring crop plans
• Details from recent corn and soybean trials

In addition to the fertilizers growers apply each season, crops can benefit from the nutrients that are already in the soil or in surface crop residues. But first, these nutrients must be mineralized and converted into plant-available forms that the crop can use. An application of Extract PBA can make this process faster and more efficient.  

In the photo below taken by the Nutrien Ag Solutions North High Plains branch in the spring of 2022, half of this Kansas wheat field had a fall application of Extract PBA technology on it (right side), helping to break down corn stalk residue and increase nutrient availability, while the other half (left side) was untreated. 

By Steve Roehl, Sr. Technical Sales Agronomist, Nutrien Ag Solutions

At harvest, impressive corn yields also leave behind an impressive amount of leaf, stalk and root mass material in the form of stover or residue. While some may call this "corn trash", the sage farmer and agronomist knows that residue is actually a treasure rich in essential crop nutrients, including nitrogen (N), potassium (in the form of K₂O), phosphorus (in the form of P₂O₅), and sulfur (S). 

Crop residue also poses some challenges. Fields with heavy residue levels can be slower to warm in the spring and can pose issues related to planting (e.g., stalks and root balls can hamper planter disc openers and depth-gauge wheels) and crop establishment. In addition, heavy amounts of crop residue can hinder the ability of soil microbes to release nutrients from the residue. This is especially true for nitrogen and sulfur, which are effectively "tied up" (immobilized) by soil microbes that use them as a food source to break down residue. These immobilized nutrients only become available to the crop once the microbes finish digesting the residue and release (mineralize) the nutrients to the soil.

For these reasons, some forethought about residue and nutrient management this fall can pay dividends to your 2023 crop. For years, Nutrien Ag Solutions customers have utilized a fall or spring application of Extract PBA to maximize nutrient release from crop residues and the soil, extend the availability of nutrients later into the season, and optimize yield potential. This biochemical-based technology is an effective way to release bound nutrients while also making seedbed preparation and planting processes more effective in the spring.

Corn undergoes a period of rapid nitrogen uptake after the V8 growth stage and through tassel and silking. If nitrogen is not readily available to the corn plant as it enters this period, it can limit yield potential.

With UAN, this is especially applicable to the urea portion of the fertilizer (comprising 50% of the UAN), which has to be converted into ammonium before the plant can use it. Enhancing a sidedress UAN application with Extract PBA, which accelerates nutrient mineralization and recycling, can ensure that the crop has the nitrogen it needs in that 21-day period of rapid uptake without falling short.

Not all forms of nitrogen in UAN are readily available for crop uptake when applied. How can growers get the most out of every unit of UAN sidedress they apply to help them reach their maximum yield potential?

Watch the on-demand webinar, "How to Enhance UAN Sidedress for Maximum Corn Yields," to learn:

• How to improve the efficiency and efficacy of UAN sidedress applications
  
  
• When growers should apply UAN sidedress for optimal benefits
  
  
• Why biocatalyst and C² technologies are a good fit in sidedress nitrogen programs
  
  
• How Extract PBA and Blackmax 22 can help ensure that applied nitrogen is available during peak crop demand, helping you maximize your UAN sidedress investment

With planting wrapping up, Agricen’s Scott Lay sat down with WITY Radio’s Dennis Michelsen to discuss how Extract PBA can enhance sidedress nitrogen applications.

Dennis - WITY Radio: With the wet spring, I think it makes a product like Extract PBA even more important this year.

Scott - Agricen: With the later planting, advancing the crop through all of its physiological stages from emergence on out is critical. One way we can do that is by increasing nutrient availability with Extract PBA to hasten maturity and move the crop through its growth phases as quickly and as efficiently as possible.

Dennis - WITY Radio: There’s no doubt from the trials that have been done over the years that Extract PBA really does help improve the efficiency of a sidedress application of liquid nitrogen. How and why does this work so well?

Scott - Agricen: By incorporating Extract PBA in a sidedress UAN 28 or 32 application, we’re able to increase the pool of available nitrogen by mineralizing more nutrients that are already in the soil profile—in other words, converting that nitrogen into an inorganic form the plant can use. And our university studies have shown that we’re able to increase the available nitrate levels by about 10 percent with Extract PBA, giving the applied nitrogen a higher level of efficiency.