PFR PROVEN - SIDEDRESS
What is the best way to apply nitrogen to corn and soybean crops?
Humic substances, those containing carbon such as humic acids, are the primary organic compounds found in humus, the major organic fraction of soil. The addition of humic acids can be beneficial for soils and plants by doing two primary things; improve the soil's holding capacity and help plant roots receive water and nutrients. Because of the high level of organic compounds found in organic matter, humic acids tend to work better on lower soil organic matters or where increase water and nutrient holding capacity is desired.
HUMIKA™ (NUTRIENT STABILIZER)
Humika is a natural carbon product made from liquefied humic shale. It contains high levels of humic and fulvic acids as well as many trace minerals.
Key Benefits: Improves N, P, and K uptake and metabolic efficiency, and accelerates soil microbiology.
FEAST SIDE-KICK 0-0-25 W/17S
Feast Side-Kick 0-0-25 w/17s is the highest-analysis potassium plus sulfur liquid fertilizer available that is designed and intended to fortify and supplement starter fertilizer and/or sidedress applications. Feast Side-Kick may be soil-applied, foliar-applied, or applied as fertigation via drip, sprinkler, or flood irrigation.
Key Benefits: High-quality, readily available nutrients that are compatible with most other liquid fertilizers.
WHAT IS THE ECONOMIC OPTIMUM NITROGEN RATE?
This is a difficult question to answer because of the variables with the weather, soils, nitrogen prices, and hybrids. 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?
Although it seems logical that increasing your seeding rate would require additional nitrogen (N), three years of PFR data and research from multiple universities indicates that increasing your planting populations does not necessarily mean you need to increase your N rate. Individual growing seasons vary in rainfall amounts and timing, leading to increase N loss, but all things being equal, higher seeding rates do not necessarily require higher N rates.
3-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, leaching, 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 (190 TOTAL UNITS OF UAN)
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 PFR Proven™. Nitrogen Sealers' double rolling coulter system covers the slot made by the injection knife, ultimately reducing the chance of nitrogen volatilization.
Nitrogen Sealers' double rolling coulter systems are after-market 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