Humic Acid Soil Amendment (Leonardite Source)

Name: Humic Acid Soil Amendment (Leonardite Source)
Brand: Chemzip
Price: 1 USD
Availability: InStock

CAS Number: 1415-93-6

Leonardite-derived potassium humate with 60–70% humic acid (HA) content for improving soil cation exchange capacity (CEC), nutrient retention, microbial activity, and root elongation in intensive crop production. Supplied as a water-soluble granule or powder suitable for drip irrigation fertigation and foliar applications. Regular application at 1–3 kg/mu per season improves soil organic matter, reduces fertilizer leaching loss, and promotes sustainable productivity.

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Technical Specifications

appearance	Black water-soluble granule or powder
pH (1% solution)	9.0–10.5
potassium (K2O, %)	10–12
solubility in water (%, min)	95
humic acid content (%, dry basis)	60–70

Applications

Drip irrigation fertigation in greenhouse and open-field vegetable production
Sandy soil amendment to improve water and nutrient retention capacity
Degraded and compacted soil rehabilitation to restore soil structure and biology
Seedling nursery substrate amendment to promote early root development
Foliar spray to improve nutrient uptake efficiency in high-value horticulture

Key Features

Leonardite humic acid at 60–70% concentration provides the highest commercially available HA content for maximum soil conditioning efficacy
Improves soil CEC by 20–40%, increasing retention of Ca, Mg, K, and trace elements and reducing leaching-driven fertilizer waste
Stimulates beneficial soil microbial populations that accelerate organic matter decomposition and nutrient cycling
Fully water-soluble formulation compatible with drip irrigation and fertigation systems without clogging emitters