Soybeans require large amounts of potassium (K), sulfur (S), and calcium (Ca). They also require micronutrients such as manganese and iron to meet their yield potential. In addition to soil applications of those nutrients, soybeans often respond to foliar applications. Sure-K® and fertiRain® products are well suited to provide cost-effective crop nutrition when applied as foliar treatments.

Sure-K

Sure-K was applied for 10 consecutive years in a corn-soybean rotation as a soil applied treatment and as a foliar treatment. Over the 10 years of the trial, the foliar application of Sure-K at 3 gal/A consistently performed as well as Sure-K applied at 5 gal/A in-furrow.

fertiRain

When applied alone, fertiRain provides excellent potassium nutrition along with nitrogen, phosphorus, and sulfur. Application timings are flexible, and it can be tank mixed with many crop protection products.

The Right Mix

Sure-K and fertiRain can be applied alone, or in combination with each other or other crop nutrients. Soybeans will often require more potassium than fertiRain alone can provide, and fertiRain can provide additional nitrogen, phosphorus, and sulfur to Sure-K.

Performance Consistency is Key

Product performance consistency is as important as individual trial results. AgroLiquid has evaluated yield response to foliar applied Sure-K across 165 locations from 1998 – 2019. Those trials showed a high level of performance consistency and economic benefit. The economic response was calculated using the soybean market price and fertilizer costs appropriate for the year each trial was conducted.

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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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Soybean fertility programs have long been a focus of AgroLiquid’s crop nutrient research.

Sure-K is one of AgroLiquid’s flagship products. Many years of research, as well as grower experience, have proven its performance.

Knowing that soybeans utilize a lot of potassium and understanding the low soil potassium (K) levels in many parts of the soybean growing areas, Sure-K was a perfect fit for a soybean fertility program. In the late 1990’s the North Central Research Station (NCRS) began testing Sure-K as a foliar application on soybeans. These foliar applications are especially beneficial, as they can be made in conjunction with most post-emergence pesticide applications.

Since 1998, 165 comparisons have been completed across the US. This data helps us determine both the yield and economic benefit of a soybean foliar fertility programs. As shown in the data below, over these 24 years Sure-K has provided a positive yield return 90% of the time with an average yield increase of 4.5 bu/A, returning an average of more than $22/A for the fertilizer dollars invested.

*ROI calculated on current CBOT soybean price and fertilizer price.

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Sure-K is a high-efficiency product that provides plants the nutrients they need to thrive at key reproductive stages. The unique formula provides increased utilization at lower concentrations, providing the same or better results than standard potassium fertilizers while using less. In addition, Sure-K uses no chlorides or hydroxides, so it preserves soil health long-term.

 

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