2019 PFR PROVEN - SIDEDRESS
What is the best way to apply nitrogen to corn and soybean crops?
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)
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
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