NitroSR - 2.5 Gallons - Slow release foliar nitrogen

NitroSR 25-0-0 Plus 0.5% B - Slow-Release Foliar Nitrogen Fertilizer with Boron

NitroSR 25-0-0 Plus 0.5% B from PowerAg is a liquid slow-release foliar nitrogen fertilizer designed to deliver a sustained supply of nitrogen to crops over a 10–14 day release period. NitroSR derives its slow-release properties from methylene urea chemistry, with 25% of the total nitrogen load slow-release, meaning plants receive a steady, prolonged feeding rather than a single flush of readily available nitrogen. Each gallon of NitroSR provides 2.45 lb of nitrogen and 0.045 lb of elemental boron (0.5%), making it a two-in-one solution for addressing both nitrogen demand and boron nutrition during active growth. NitroSR is formulated for foliar application and can be used across a broad spectrum of field crops, fruits, vegetables, and ornamental plants via both ground and aerial equipment.

Key Benefits

• Slow-release nitrogen delivery over 10–14 days - methylene urea technology releases nitrogen gradually, matching the crop's uptake rate during peak growth and reducing the risk of the surge-and-crash associated with instantly available nitrogen sources.
• 25% slow-release nitrogen fraction - 25% of the total nitrogen in NitroSR is slow-release, providing both an immediate nitrogen component for rapid response and a sustained component for extended feeding in a single application.
• Boron included - 0.5% boron supports carbohydrate transport, reproductive development, and cell wall integrity, addressing one of the most commonly deficient micronutrients in high-yield production without a separate application.
• Broad crop compatibility - labeled for use across a wide range of field crops, fruits, vegetables, and ornamental plants; suits corn, soybeans, cereal grains, potatoes, tree fruit, and more.
• Ground and aerial application flexibility - can be applied through standard ground spray equipment or by air, making it a fit for large-acreage field crop programs and specialty crop operations alike.
• Tank-mix compatible - can be applied alongside fungicide and insecticide passes to add a nitrogen and boron top-dress to an existing scheduled spray without an additional trip across the field.
• Reduces risk of nitrogen timing gaps - particularly useful during critical growth stages when weather, logistics, or soil conditions prevent timely side-dress applications, providing a reliable foliar nitrogen supplement at the canopy.

Technical Information

• Guaranteed Analysis: 25-0-0 Plus 0.5% B
• Total Nitrogen: 25% (6.25% slow-release from methylene diurea and methylene ureas; balance as urea nitrogen)
• Boron (B): 0.5%
• Nitrogen per gallon: 2.45 lb
• Boron per gallon: 0.045 lb elemental boron
• Slow-release mechanism: Methylene urea (methylene diurea and methylene ureas)
• Release pattern: Estimated 10–14 days
• Application method: Foliar - ground or aerial
• Formulation: Liquid

Crops & Application Rates

NitroSR is suitable for a wide range of crops. The following rates are suggested use guidelines based on crop type and growth stage. Rates may be adjusted based on crop nitrogen status, yield goals, and field conditions. Always apply to actively growing crops with good moisture conditions for best foliar uptake:

• Corn:
  • 3–5 gal/acre at V4 to V8 as a partial side-dress nitrogen replacement
  • 1–3 gal/acre at V10 as a nitrogen supplement
  • 1–2 gal/acre when tank-mixed with fungicides or insecticides
• Soybeans: 1–3 gal/acre at V6 through R3 as a nitrogen supplement
• Cereal Grains: 1–3 gal/acre from growth stage 2 through stage 8 as a nitrogen supplement
• Potatoes, fruiting vegetables, cucurbits, leafy vegetables, berries, grapes, tree fruit, alfalfa, and ornamentals: Use rates vary by crop and growth stage, consult the PowerAg agronomist or product label for crop-specific guidance.

Compatibility note: Avoid contact with strong acids or with aluminum, mild steel, or brass equipment. Use stainless steel, fiberglass, or plastic-lined tanks and equipment when applying NitroSR. This product contains boron; do not use on plants known to be sensitive to boron.

ALWAYS READ AND FOLLOW LABEL DIRECTIONS BEFORE USE.

Resources

Product Overview (PowerAg)
NitroSR Product Label (PDF)
Safety Data Sheet (SDS PDF)

Why Professionals Choose NitroSR

Timing is everything in nitrogen management, and NitroSR gives growers a way to keep nitrogen moving to the canopy during critical growth windows, whether as a planned foliar supplement, a partner in a fungicide or insecticide pass, or a bridge when side-dress logistics fall short. The methylene urea slow-release system stretches each application over 10–14 days of sustained feeding, and the built-in boron addresses one of the most common secondary deficiencies in high-yield corn, soybean, and specialty crop production. For operations where every pass counts, NitroSR earns its place in the tank.