NPK Industries RAW 59% Humic Acid 0-0-4 Soluble Powder – 2 lb

RAW Humic Acid: 59% Humic Acids in a Fully Soluble Powder

This is a dry humic supplement from NPK Industries, and it dissolves completely in the reservoir instead of settling out as sludge. The guaranteed analysis is 0-0-4, which means 4% soluble potash on the label and 59% humic acids doing the real work. It is not a fertilizer program on its own. Humic acids bind minerals already in your solution and hold them where the roots can take them up. Growers describe it as a natural chelator for that reason. That matters most when you start from RO water or run a lean feed, where every trace element counts. The published directions call for 1/8 to 1/4 teaspoon per gallon in the reservoir, applied as needed. A 2 oz pack is rated to make 200 gallons, which puts this 2 lb bag at roughly 3,200 gallons. Most growers settle into the lower rate at every reservoir change and move up only when plants look sluggish. NPK pairs it with RAW Kelp at a five-to-two humic-to-kelp ratio, and that combination is where the root response shows up fastest. It belongs to the same line as the other RAW solubles, so it measures out with the same small scoop.

Water Soluble Humic Acid for Soil, Coco and Hydro Reservoirs

Water soluble humic acid earns its place wherever soil biology is thin or missing. In coco and hydro there is no humus doing this job, so a small dose in each reservoir stands in for it. In living soil it still pulls its weight, mainly by steadying root-zone pH and raising the cation exchange capacity of the mix. Expect the reservoir to turn tea-colored once it dissolves. That color is normal and nothing to worry about. Mix the powder into plain water before any concentrated base nutrient or pH down goes in. Humic acids fall out of solution under strong acid, and a scoop dropped into acidified concentrate clumps instead of dissolving. Recheck pH after everything is in, because humates buffer the solution and the reading can move. Two honest limits belong here. It will not fix a deficiency caused by an element your feed is missing. The potash it carries is also too small to count as your potassium source. Treat it as the supplement that makes the rest of the feed work harder, never as a stand-in for any part of it.

Key Features

• 59% Humic Acids: A concentrated dry source that goes a long way per scoop.
• Fully Water Soluble: Dissolves completely, so it passes drippers and emitters without leaving sediment behind.
• Natural Chelation: Binds minerals in solution and keeps trace elements available at the root zone.
• Works in Any Medium: Suits soil, coco and hydroponic systems alongside any base nutrient line you already run.
• Pairs With RAW Kelp: NPK recommends a five-to-two humic-to-kelp ratio for the strongest root response.

Technical Specifications