Healthy Soil Healthy People

Four Ways to increase production with Humic Acid

13 September 2017


Firstly, What is Humic Acid?

It is a component of Soil Organic Matter (and Soil Organic Carbon) and present naturally in soils. Healthier, productive soils have a higher humic content.

The humic in LawrieCo liquid and solid fertiliser products are an extract from lignite / brown coal and selected for

1. high quality (minimal impurities),

2. concentration (analysis) and

3. physical properties to ensure ease of application and consistency in the paddock.


How does Humic Acid in Fertiliser Programs improve Productivity?








Meet RONI (Return on Nutrient Investment)

Balance: chemical, physical & biological

Meet ROWI (Return on Water Investment)

Meet FUN-GUY (Fungi)

RONI and Fertiliser Efficiency

Nutrient use efficiencies in Australian agriculture range from 10-60%*, indicating there is significant room to benefit from increasing RONI.

The bonding capacity of humic acid increases the efficiency of other fertiliser inputs.

Humic acid is a natural colloid and provides bonding capacity for applied nutrients making them easier to access by plant roots by keeping them in the root zone and reducing nitrogen leaching and phosphorus lock-up.


Better Soil Structure

Introducing good levels of humic acid improves soil structure, it modifies the permeability, porosity, water retaining capacity, absorption, surface area and cation exchange reactions.

Farm results show transformations to friable, healthy, productive soil from hard settling, waterlogged soil, light sands, heavily compacted and salt affected soil all show significant improvement.

Improving soil structure relates to improved fertility, plant production and profitability for farms.


Return on Water Investment (ROWI)

The improved soil structure that comes with higher humic acid levels, also translates to an improved ability of the soil to use water efficiently both rainfall and irrigation.

Farms we work with see improved holding capacity, reduced runoff and waterlogging.

Additionally, the use of humic acid with irrigation water can buffer the effect of salts and improve the plant root access to vital nutrients such as calcium, magnesium and potassium.


Benefit Microbial Activity

Humic acid naturally stimulates the life in your soil promoting biological processes; including nitrogen fixation, phosphorus solubolisation, growth hormone production and natural breakdown of organic matter (cycling).

Importantly Fun-Guy (Fungi, pictured above) loves humic acid.

Humic acids are a great food source for Fun-Guy species which often have low populations in the soil. This is because they are affected by agricultural practices such as excess tillage, some chemicals and high fertiliser applications.

Plants love Fun-Guy because their hyphae improve soil structure, they build soil humus (stable organic carbon) and make nutrients plant available.

Learn More about The Life in Your Soil


How do farms we work with Introduce Humic Acid into fertiliser applications?

Fertigate with BioMAX Liquid Humate 26

Upfront Fertiliser with NutriMAX Granular Range (Humic + NPS)

Soil Conditioning blend with generic and customised BioLogic Blend


Speak to an Area Manager to locate a Distributor in your area to discuss how you can simply and cost effectively introduce humic acid into your fertiliser program.