Bio-Fertilisers are fertilisers produced via biological processes. Scientific understanding of biology within soil, the digestive system of ruminants and the means by which they make nutrients available has been applied to fertiliser production.

MasHumus utulise the fresh rumen of a cow as a broad spectrum inoculant, this is combined in an anaerobic environment with carbohydrates, nitrogen, and various mixtures of insoluble minerals. The action of yeasts and bacteria solubilise the minerals, chelating agents are produced which bind the minerals in forms which are easily assimilated into the soil, and readily available to plants.

Bio-Fertilisers have the potential to replace expensive conventional fertilises, increasing production, soil biology, mineral availability, reduce expenditure, and the negative effects of conventional fertilisers on soil biology.