Using eNhance In-Furrow – Effect on Yield and Soil Test Analysis

We’ve proven, time and again, that AgroLiquid’s eNhance in-furrow can improve yields. Research conducted at the North Central Research Station, along with in field trials across the U.S., has built a database of yield comparisons to help determine the likelihood of seeing a positive response, both agronomically and economically. Seventeen trials from multiple years and locations shows that over 94% of the time, adding eNhance to a planter fertilizer program shows a positive yield response along with an economic return of those fertilizer dollars invested. Applied at typical rate of 2 qt/A, on average a 7.7 bu/A yield increase was achieved. Having this data helps our sales team make recommendations and growers make better management decisions.

What About the Soil?

The NCRS is key to helping collect win-rate data but are able to take research one step further. An advantage of having our own research facility is we can look more in depth to the “why” behind yield response in addition to answering agronomic questions to improve our product positioning and recommendations. We’ve proven, time and again, that this product can improve yields, but can eNhance, being a sulfur product, also have an effect on the surrounding soil? Can it lower the soil pH where needed? Can it actually build soil sulfur levels? Fortunately AgroLiquid has the North Central Research Station that is able to find answers to these questions.

The Research

A replicated plot experiment was conducted in 2020 in a field with a higher pH and low soil test sulfur (as is common here and elsewhere). An in-furrow fertilizer program was applied both with and without a 2 qt/A rate of eNhance.

In-furrow, 4-inch soil samples were taken over time to measure the effects of the two treatments on soil pH and sulfur levels. These were compared to samples collected from between the rows where no fertilizer was applied. And finally, at season’s end the plots were harvested for yield. Results appear in the following chart.

The research found that eNhance did not have an effect on soil pH or soil test sulfur beyond that of the in-furrow planter fertilizer. The pH of Pro-Germinator and Sure-K is in the low 6 range, and this in itself could affect the pH of the planter fertilizer zone. And lower pH can also increase soil test sulfur. The 2 qt/A rate of eNhance does not have sufficient volume to affect pH anyway, especially when the pH of eNhance is near neutral. Additionally, an increase soil test sulfur is unlikely when less than half a pound of actual sulfur is applied.

Feed the Plant

AgroLiquid has long maintained that its nutrition is for feeding the plant. Evidently the in-furrow eNhance is doing just that as the yield response was over 10 bushels per acre, a statistically significant increase! So use eNhance as a yield-building tool to provide the nutrients that are needed for top economic production. For field crops, addition of eNhance at planting and then accesS or CalSip in subsequent application is a good option for top yield (check out our research proving the effectiveness of these products).

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You Can Increase Yield With Just 4 gal/A of accesS®

We talk a lot about sulfur. In fact, it may be a nutrient we need to consider with the same level of importance as N, P and K (although I would argue all nutrients are important, especially in a balance – but that’s a topic for another day).

Sulfur also happens to be a nutrient that you need to increase corn yield. But how do you get that needed sulfur???

The addition of accesS is research-proven to regularly increase yield when soil test Sulfur is low. And it’s easy. Look at the multi-year test results in a corn-soybean rotation.

The AgroLiquid base program (left bars for each year) include Pro-Germinator® + Sure-K® + Micro 500®. The right-side bar for each year shows what adding four gal/A of accesS to a nitrogen sidedress application did for yields.

The four year average yield increase was 12.3 bu/A.

Check out all of our research results on our website at research.agroliquid.com.

Want to learn about the importance of sulfur? AgroLiquid Agronomist John Leif recently posted this blog discussing why sulfur is so important to a crop.

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AgroLiquid has been working in partnership with Precision Planting to evaluate the use of our fertilizer products through their FurrowJet and Conceal application technology. This project was conducted at the Precision Technology Institute (PTI) in Pontiac, IL. This trial demonstrated the ability to apply phosphorus, potassium, and micronutrients through the FurrowJet®, and nitrogen plus sulfur through the Conceal® to provide an excellent crop nutrition foundation for corn production and positive economic return.

The AgroLiquid crop nutrition program achieved an excellent average yield gain of +14.6 bu/A over the control, which equaled a positive return on investment of +$18.95/A*.

*Net return is based on yield increase compared to the control minus the cost of the fertilizer. Corn price used for this calculation was $3.75/bu and fertilizer prices were estimated average retail prices.

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The Value of Prescription Fertility

Micronutrients are key to ensuring your crop has everything it needs to reach its fullest potential. Micro 500 is specially designed to provide the plant with a base of the necessary nutrients and can be combined with individual nutrients from AgroLiquid’s microLink lineup to address additional specific needs.

Evaluating multiple locations across the US over the last 20+ years, AgroLiquid has developed win-rates of Micro 500 when added to a corn fertility program. This evaluates both yield and economics to help growers make better decisions on their crop fertility program.

Average of 17 locations across the US; 1996 – 2020

Use rate: 1 – 2 qt/A

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Micro 500 contains the essential micronutrients zinc, manganese, iron, copper, and boron. These micronutrients stimulate healthy growth in a variety of ways, and work synergistically with one another. By improving chlorophyll production and photosynthesis, Micro 500 helps to support every growth stage.

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Late season applications of Kalibrate have a proven yield benefit. Kalibrate combines the proven performance of AgroLiquid potassium with sulfur. In this trial from Oakley, KS, Kalibrate was pivot injected at VT. The application improved stalk strength and water usability during a peak growth period, which resulted in a 8.8 bu/A yield increase.

Additional benefits of working with Kalibrate:

• Low use rate
• Ease of application
• High average return on investment
• Mixes with UAN and many other fertilizers
• Proven response on high potassium soils

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