NTS Powdered Humic Acid

70% humic acid in slow-release form.

This slow-release humic acid is comprised from compressed, ancient plant matter in the form of leonardite (a soft brown coal). This humic acid also contains good levels of fulvic and ulmic acids, making this an exceptional quality base product. It is an ideal additive to boost bio-activity and improve the performance of compost or composted fertilisers. The composting process speeds the release of the humic and fulvic acids.


  • Australian Certified Organic (ACO) Registered Farm Input 456AI.
  • Offers all of the numerous benefits of humic acid in a slow-release form.
  • Slow-release humic acid can help to stabilise inputs throughout the crop cycle.
  • Offers soil structure improvement by promoting fungi to create a crumb structure for better water and oxygen intake and improved root penetration.
  • Natural chelating and complexing agent to help magnify nutrient absorption.
  • Can buffer the effects of excessive elements (particularly sodium), toxic chemicals and heavy metals.
  • pH buffering capacity to help neutralise the problems associated with pH extremes.
  • Features a CEC of 450 which aids in moisture and nutrient retention.
  • Microbe friendly.
  • Promote seed germination in a shorter time.
  • Has an affinity for iron and can increase availability of this element in all soils.
  • This product still retains the high levels of broad-spectrum minerals that were part of the ancient plants from which it was derived.
  • Can be applied directly to the soil at any time to help buffer excesses or toxins or to promote soil life (fungi).