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Nitroform Fertilizer 39-0-0 Slow-Release Nitrogen Fertilizer

Original price $21.99 - Original price $177.99
Original price $21.99
$21.99
$21.99 - $177.99
Current price $21.99

Nitroform 39-0-0 Slow-Release Nitrogen Fertilizer

Achieve steady, season-long growth and vibrant green color with Nitroform 39-0-0, a premium, highly concentrated slow-release nitrogen fertilizer. Built on advanced urea-formaldehyde (methylene urea) chemistry, this granular formula is designed for sustained feeding without the risk of overwhelming your plants or turf.

The Slow-Release Advantage

  • Consistent 8-to-12 Week Feeding: Delivers a potent 39% total nitrogen. Because roughly 73% of this is water-insoluble, it relies on soil microbes to gradually meter out nutrients over 2 to 3 months, rather than washing away with the first rainfall.

  • Low Burn Risk & Reduced Leaching: The microbe-dependent release mechanism means you can apply at recommended label rates with an exceptionally low risk of fertilizer burn, keeping nitrogen in the root zone where it belongs.

  • Highly Versatile: The perfect slow-release nitrogen base for turf, trees, shrubs, container nurseries, and landscape ornamentals. Its clean, granular form also makes it ideal for easily blending into custom fertilizer mixes.

Easy Application Guide

  • How to Apply: Spread granules evenly over the soil surface. Take care to keep granules off plant trunks and stems.

  • Activation: Water deeply within 24 hours of application to begin the breakdown process.

  • Optimal Conditions: Because this product relies on microbial activity, release performs best when soil temperatures are above 55°F.

⚠️ Important Usage Notes

  • Not a Quick Fix: This is a sustained, maintenance-feeding formula. For rapid green-up or quick nutrient correction, pair this product with a quick-release nitrogen source.

  • Soil Application Only: This product is not water-soluble. It should never be used for hydroponic systems or foliar spraying.

Quality & Safety You Can Trust

  • CDFA Registered: Complies with strict agricultural and environmental standards.

  • Third-Party Lab Tested: Independently tested for heavy metals, with results consistently and safely well below required regulatory limits.

Frequently Asked Questions

What makes Nitroform Fertilizer a good option for slow-release nitrogen needs?
Nitroform Fertilizer 39-0-0 is built on urea-formaldehyde chemistry, releasing 73% of its nitrogen gradually over 8 to 12 weeks, which supports steady plant growth and reduces the risk of burn and leaching.
How should I apply Nitroform Fertilizer for best results?
Spread Nitroform Fertilizer evenly over the soil surface, keep the granules off trunks and stems, and water within 24 hours to activate microbial breakdown and ensure proper nutrient release.
Is Nitroform Fertilizer safe to use around trees and shrubs?
Yes, Nitroform Fertilizer is designed for use in turf, trees, shrubs, and landscape ornamentals, providing a steady nitrogen source that encourages healthy growth without rapid release, lowering burn risk.
Can I use Nitroform Fertilizer for hydroponic or foliar feeding?
No, Nitroform Fertilizer is a granular, water-insoluble product intended for soil application only. It is not suitable for hydroponic systems or foliar feeding.
How does Nitroform Fertilizer help reduce environmental impact?
Because most of the nitrogen is released slowly and microbial activity controls release, Nitroform Fertilizer minimizes leaching and reduces the risk of runoff, making it an environmentally friendly choice for fertilizing.
How does Nitroform Fertilizer 39-0-0 promote long-lasting plant growth?
Nitroform Fertilizer 39-0-0 utilizes advanced slow-release urea-formaldehyde chemistry to deliver a steady supply of nitrogen over 8 to 12 weeks, ensuring sustained and vibrant plant growth without overwhelming your plants or turf.