• Agriculture Technology

Advanced Acre Rx Trials Demonstrate the Value of Holistic Management


Some farmers say that farming is a gamble — you never know what unexpected challenges the season will bring. While there’s certainly truth to that sentiment, it’s always best to know how to stack the deck in your favor. That comes from finding the right partner to help you out when the “cards” aren’t falling the way they should.


This season, the WinField United agronomy team conducted a series of trials in partnership with local retailers as part of the WinField® United Advanced Acre® Rx program, WinField United’s agronomic prescription service built to provide farmers with confidence in their agronomic decisions. Farmers who participated in the program received a season-long plan with in-season adjustments and a service warranty for performance.


As we look ahead to next season, here are the results from some of these Advanced Acre Rx trials and how these learnings can help inform next season’s decisions.


A holistic systems approach to management can provide consistent ROI

Through the Advanced Acre Rx trial program this season, we compared our systems approach at differing levels of APH (actual production history) against a standard crop management plan. For example, in our Advanced Acre Rx hybrid trials in Iowa and South Dakota, we tested four different levels of prescriptions designed to reach various APH levels of crop yield:

  • A base program level, which received normal removal rates of phosphorus and potassium along with nitrogen and sulfur applications at planting with a standard two-pass herbicide program.

  • A 90% APH prescription level, which received the base program level and an added starter fertilizer at a rate of 5 gallons per acre.

  • A 95% APH prescription level, which received the 90% APH-level program in addition to a side-dress application of nitrogen and sulfur, a micronutrient application at V5 and a mid-tier fungicide application at VT.

  • A 100% APH prescription level, which built on the 95% APH-level program by adding Ascend® Pro plant growth regulator and a micronutrient mix to the starter application, laying nitrogen as recommended by a nitrogen prediction model and making a foliar boron application tank-mixed with a premium fungicide.


The charts below show the final average yield results compared to the base management program. By following the more advanced prescription levels that offered more holistic management approaches, we saw significantly higher yield results than the base management approach. In our Iowa plots, this resulted in yields up to 19.1 bushels per acre higher at the 100% APH level than the traditional base management level.1

Trial results in Marshalltown and Washington, Iowa, revealed that on average, trials following a 100% APH prescription program earned 19.1 bushels more than the base level management program.

Trial results in Sioux Falls and Aberdeen, South Dakota, earned an 11.8 bushel higher average yield response across 100% APH prescription level trials than the base level management program.

Translate trial results into actionable strategies for next season

Uncertainty is unavoidable in farming. But as a farmer, there are resources available to help you feel more confident in the decisions you make — and the Advanced Acre Rx program is designed to do just that.


By leaning into WinField United’s suite of ag technology tools to inform input recommendations, the Advanced Acre Rx trial plots demonstrated how we were able to achieve varying levels of APH and see higher yield and ROI in the process. Talk with your local WinField United retailer to learn more about the Advanced Acre Rx program and to develop a customized plan for your operation.


1. 2020 Answer Plot® trial data, Marshalltown and Washington, Iowa.

2. 2020 Answer Plot trial data, Sioux Falls and Aberdeen, South Dakota.


All photos are either the property of WinField United or used with permission.

Important: Before use always read and follow label instructions. Crop performance is dependent on several factors many of which are beyond the control of WinField United, including without limitation, soil type, pest pressures, agronomic practices, and weather conditions. Growers are encouraged to consider data from multiple locations, over multiple years, and be mindful of how such agronomic conditions could impact results.
© 2020 WinField United. Advanced Acre®, Answer Plot®, Ascend® and WinField® are trademarks of WinField United.

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