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