The Top Ten Benefits of Humus Compost


  1. Soil structure improvements – poor drainage, hard pans, erosion  and dust storms are far more likely in low humus soils as the life that creates a crumbly, friable soil is missing and the glue that holds the soil together is  also lacking.

  2. Promotes soil crumb structure – this magical soil structure is not something you can buy in a bag. Bacteria release a sticky exudate that creates mini aggregates in the soil. Then, fungi use their hyphae to wrap these particles into larger aggregates to create a highly desirable   crumb structure that allows easy access of oxygen and water. Plant roots, earthworms and beneficial nematodes can move easily through this soil and everything works as it should!

  3. Water retention – humus holds it’s own weight in water and is a far more efficient means of delivering water directly to the roots than  storage and delivery from dams which suffer major evaporation problems and generate a major carbon footprint via pumping of that water.

  4. The solubilisation of mineral fertilisers – the better the humus levels the faster your response to mineral fertilisers like lime, dolomite, rock phosphate, and rock dust. The release of these materials is governed  by biology.

  5. pH buffering – the higher your humus levels the less the importance of maintaining a perfect soil pH of 6.4

  6. Mineral Retention – humus has negatively and positively charged sites so it can store and stabilise all minerals. If you can build your humus levels it will dramatically improve fertiliser efficiency.

  7. Soil Detoxification – humus acts like a carbon filter to neutralise chemical residues and heavy metals in the soil.

  8. Root zone chelation – humus contains both humic and fulvic acids which are nature’s most powerful chelating agents.

  9. Plant growth promotion – the organisms that live in humus produce growth hormones, B group vitamins (now known to promote plant  growth) and other growth promoters.

  10. Less chemical intervention – high humus soils usually feature the full suite of protective organisms which reduces the need for toxic chemicals.