Black Ultra

Black Ultra is very different to any other humic, humate or humic substance material in the market. An advanced manufacturing process is used to fully react materials using a specific patent regulated by heat, pressure, time and pH in a highly controlled environment. This creates a very soluble, stable, free-flowing efficacious final material that can be used straight and/or in combination with other liquid N or N-P-K fertilisers, resulting in improved plant health, yields, quality and excellent return on investment.


  • Specifically processed leonardite based substance
  • Highly charged carbon content
  • Non-phytotoxic
  • Micro fine particles



  • Improves organic carbon and CEC
  • Buffers negative effects of accumulated salts
  • Increased water retention
  • Improves overall soil biology
  • Enhanced nutrient use efficiency
  • Improves nutrient use efficiency when added to UAN
  • Can be applied foliar and through fertigation.



Application Rates & Timing: See product label

Specific Gravity: ~1.19

pH: 12.5 - 13.0

Colour: Black

Compatibility: Incompatible with calcium based fertilisers, therefore drip lines must be properly flushed before use. Fertiliser solutions with a pH of 5 or less may not be compatible. Seek professional advice prior to tank mixing with other nutritionals or pesticides.

Storage: Keep sealed in original container. Store in frost-free, dry conditions out of direct sunlight, above 5°C and below 30°C

Contains: (w/v)%: 0-0-4 + 22% organic acids derived from leonardite using a patented extraction process


  • Crop Suitability
    Broadacre Row Crop Horticulture
  • Product Timing
    Foliar, Fertigation and Soil Applied
  • Pack Sizes
    20L, 1000L

Products should be used in accordance with the product label and directions for use.
For best results, consult with your agronomist on suitability of the product, taking into account your particular circumstances.