PFR PROVEN

2019 PFR PROVEN - SIDEDRESS

  • Multi-Location

What is the best way to apply nitrogen to corn and soybean crops? 

 

SIDEDRESS: PRACTICES

 

WHAT IS THE ECONOMIC OPTIMUM NITROGEN RATE?

This is a difficult question to answer because of the variables with weather, soils, nitrogen (N) prices, and hybrids, but Beck's nine-year, multi-location data indicates a range between 220 to 230 l b./A. for corn-after-corn and 190 to 200 lb./A. for corn-after-soybeans

 

9-YEAR MULTI-LOCATION ECONOMIC OPTIMUM NITROGEN RATE (EONR)

 

 

OBSERVATION

Due to the carbon penalty when planting corn-after-corn, additional nitrogen is required, especially during the early part of the growing season.

 

DO I NEED TO ADD MORE NITROGEN IF I INCREASE MY PLANTING POPULATIONS?

Our two-year Practical Farm Research data, as well as university research, indicates that increasing your planting population does not necessarily mean you need to increase your nitrogen rates.

 

2-YEAR MULTI-LOCATION POPULATION VS. NITROGEN RATE NET RETURN (CORN-AFTER-SOYBEAN)

 

 

WHAT’S THE BEST TIME TO APPLY NITROGEN?

Split applications of nitrogen (N) are a PFR Proven™ practice to increase yield. Corn takes up most of its N between the V8 and VT growth stages. Split applications allow for in-season adjustments of N to account for rainfall, planting dates, and the environment. It also helps mitigate the risk of NO3- losses via denitrification, leeching, and surface runoff. Although split applications require more labor, they also can improve yield and N use efficiency.

 

 

4-YEAR MULTI-LOCATION NITROGEN TIMING ROI

 

 

WHAT KIND OF EQUIPMENT OPTIONS ARE AVAILABLE FOR SIDEDRESS APPLICATIONS?

We continue to test multiple equipment options for sidedress applications including Unverferth’s Nutrimax™ and 360 Yield Center’s Y-DROP®. Nitrogen Sealers are also PFR Proven™. Nitrogen Sealers' double rolling coulter system covers the slot made by the injection knife, ultimately reducing the chance of nitrogen volatilization.


SIDEDRESS: NITROGEN SEALERS

 

Nitrogen Sealers' double rolling coulter systems are aftermarket upgrades that are compatible with most 28% or anhydrous applicators. Nitrogen Sealing Systems’ sealers can be used in twin-row or 20 in. row corn. The double rolling coulter system covers the slot made by the injection knife, reducing the chance of nitrogen volatilization.

 

4-YEAR MULTI-LOCATION NITROGEN SEALERS YIELD ADVANTAGE

 

 

OBSERVATION

Nitrogen volatilization is most likely to occur in warm, moist environments when urea nitrogen is on the soil surface.

 

 

 

NITROGEN SEALER ACRES TO PAY OFF

 

 

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