Humistar WG

Concentrated humic and fulvic acids, 100% rapidly soluble micro-granule.

Highly effective root Biostimulation in all crops, enhances fertiliser uptake.
Increases root biomass, reduced transplant shock, heightens weather resistance.
Improves soil physical structure, helps water penetration and increases root growth.
Boosts soil microbiota, promotes rhizosphere interactions.
100% rapidly soluble microgranule produced by advanced microgranule drying technology.

Humistar WG is a natural humic extract, based on humic and fulvic acids (4:1 ratio), soluble in water and extracted from American Leonardite. American Leonardite is a premium source of humic acids that was one of the first, and remains, one of the most widely studied sources of concentrated humic acids for use in agriculture.

Humistar WG improves the physical, chemical and biological characteristics of soil, facilitating the availability and uptake of nutrients by crops. It increases root biomass as well as the quantity of fine roots.


Humistar WG is suitable for use in all crops and is a 100% water soluble microgranule suitable for use in all boom spray, sprinkler and drip irrigation syste.**

*Please, this is not a legal classification. Be aware that this product might not considered as biostimulant according to local legislation. Contact our Rovensa Next team in your country to know which is the legal situation of this product in your area.

** Rovensa Next is a global business unit that delivers solutions for agriculture around the globe. The information shared here may vary depending on the geography. To confirm the product is available in your country or in case of any questions or for additional information, please contact us using the provided form. Thank you.

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How we help you:

Through biosolutions developed to meet crop needs from seed to shelf.

By product categories

Agricultural Bionutrition

Agricultural Biocontrol

Agricultural Adjuvants and Correctors

By grower needs

Gestión integrada de plagas

Integrated Pest Management

Gestion integrada de enfermedades

Integrated Disease Management

Mejora la tierra, el agua, y la aplicación de los productos

Enhance soil, water and product applications

Estimulación de los procesos naturales de las plantas.

Stimulation of Natural Plant Cycle

Minimiza el estrés abiotico

Minimising Abiotic Stress

Nutricion Sostenibile

Sustainable Crop Nutrition

Mejora de la calidad de las cosechas

Enhanced Crop Quality