Purpose of this retained page: This is a claim-review checklist for lignosulfonate use in agriculture. The complete ammonium-lignosulfonate soil-research discussion is maintained at Ammonium Lignosulfonate in Soil Research: Evidence Guide. Agricultural products and formulation guidance belong to ChinaLignin.
Do not turn one soil study into a universal product claim
Older versions of this page described ammonium lignosulfonate as a fertilizer, soil fumigant alternative, biostimulant, bactericide, fungicide and nematicide at the same time. Those descriptions exceed what product identity or a TDS can establish. A laboratory, greenhouse or field observation remains attached to the tested material, concentration, soil, crop, pathogen, method and control.
Legacy research numbers and their correct status
| Previously quoted result | Correct evidence classification | Commercial-use decision |
|---|---|---|
| 2% ALS increased bacteria from about 300 million to more than 100 billion per gram within 14 days | Reported incubation result in treated test soil | Not a guaranteed field or “beneficial microbe” outcome |
| 2% ALS increased fungal counts by more than two log units | Reported result under defined study conditions | Increased total fungi does not by itself prove agronomic benefit |
| 0.5% and 1.0% produced a greater pH decrease than 2.0% | Study-specific soil response | Not evidence that lignosulfonate automatically regulates all soils to an optimum pH |
| Verticillium detection delayed six to eight weeks | Reported greenhouse observation for a defined potato system | Not a crop-protection guarantee or pesticide claim |
| 0.5% reduced nematodes by at least 60%; 1.0% by at least 95% | Legacy interpretation requiring the exact experiment, endpoint and denominator | Do not publish as a recommended dose or universal efficacy |
| 10–100-fold decrease in pathogenic Streptomyces | Reported study observation with counting limitations | Not a universal bactericidal claim |
| 2% reduced microsclerotia germination by more than 50% by day 14 | Reported soil-incubation result | Must retain material, concentration, timing and method |
For the source context and links to the conference paper, related patent and later potato-field research, use the dedicated evidence guide.
Current offered-grade data are a separate layer
Green Agrochem’s current Ammonium Lignosulfonate — Agri/Fertilizer Grade, GAC-NHLS-Agri, TDS Rev. 1.0 lists total nitrogen of 3–5%, not the generic 6–8% formerly stated on this page. It also lists pH 4–7, dry matter 95% min, water-insoluble matter 1.0% max, sulphate 5% min, calcium and magnesium 2% min, lignosulphonate content 50% min and moisture 7% max.
These are typical product-characterization values for the named grade. They do not demonstrate disease control, microbial benefit, nutrient-use efficiency or crop yield. The shipment’s signed COA supplies batch-specific results.
Claim-qualification checklist
- Identify the claim type: product specification, nutrient declaration, formulation function, agronomic performance, pesticidal effect, safety or sustainability.
- Identify the exact material: product code, ionic form, lot, solids, analytical profile and any co-formulants.
- Preserve the test system: concentration and basis, soil, crop, organism, control, timing, replication, method and statistical result.
- Check regulation: a disease-, pathogen- or pest-control statement may create pesticide or plant-protection regulatory obligations. Organic eligibility is a separate review.
- Avoid scope inflation: do not replace “reported under these conditions” with “controls,” “eradicates,” “safe,” “high efficiency” or “increases yield.”
- Validate the commercial grade: conduct controlled trials using the product actually offered and the intended application method.
Dosage status
GAC-NHLS-Agri TDS Rev. 1.0 does not provide a universal agricultural dosage. The 0.5%, 1.0% and 2.0% research concentrations are experimental treatments—not supplier-recommended production rates. Any commercial starting range must identify its exact grade, source revision and calculation basis and must be validated in the actual formulation, soil and crop system.
Correct agriculture routes
- Ammonium Lignosulfonate product direction
- Lignosulfonate in Agriculture
- ChinaLignin agriculture application hub
The unrelated oil-well drilling block previously attached to this agriculture page has been removed. Oilfield products and applications remain within LigninCorp’s industrial structure. For current agricultural documents and trial support, contact info@greenagrochem.com.
