NPK Industries RAW 20-0-0 Ammonium Nitrogen, Water Soluble – 2 lb

RAW Nitrogen 20-0-0 for Fast Corrections and Custom Recipes

This is a single-element nitrogen supplement from NPK Industries, sold dry and fully soluble in water. It carries 20% nitrogen, all of it in the ammonium form, derived from ammonium sulfate. There are no nitrates and no urea in the bag. That makes it a precise tool rather than a base feed. Growers reach for it when lower leaves pale in mid-veg. It also suits a recipe that needs more nitrogen without dragging extra phosphorus or potassium along. The published rate is 1/16 to 1/8 teaspoon per gallon in the reservoir, applied as needed. At that dose a 2 oz pack is rated for 200 gallons, which puts this 2 lb bag at roughly 3,200 gallons. It works in soil, coco and hydro, and NPK lists foliar feeding among its uses as well. No separate foliar rate is published, so test a few leaves before spraying the whole canopy. Because it adds nothing else to the tank, you can nudge nitrogen up without rebalancing the rest of the recipe.

Ammonium Nitrogen Behaves Differently in the Root Zone

Ammonium nitrogen is taken up quickly, and it pulls root-zone pH down as the roots absorb it. In a well-buffered soil that drift barely registers. In coco and recirculating hydro it shows on the meter within a reservoir or two. Check runoff and reservoir pH more often after adding it. Keep it layered on top of a complete base feed rather than leaning on it alone. Most base nutrient lines rely on nitrate as the main nitrogen source, and plants fed mostly ammonium in hydro can stall. The sulfur that comes along with ammonium sulfate is a quiet bonus, since sulfur is part of the proteins behind leafy growth. Late in bloom, go easy. Extra nitrogen past mid-flower pushes leaf over flower and can hold green color into harvest. A light hand early and a clean taper later is how this bag earns its keep.

Key Features

• 20% Ammonium Nitrogen: All the nitrogen arrives in one form, with no nitrate or urea to account for.
• Fully Water Soluble: Dissolves completely and runs through drip lines without leaving residue behind.
• Single-Element Correction: Raises nitrogen alone, so the rest of your recipe stays exactly where you set it.
• Soil, Coco, Hydro or Foliar: NPK lists every one of these application routes for the same bag.
• Derived From Ammonium Sulfate: Brings sulfur along with the nitrogen, a useful extra during leafy vegetative growth.

Technical Specifications