PHCC recently hosted a one-day Soil Microscopy workshop with EarthWhile Australia. Participants, who ranged from large-scale producers to home-gardening enthusiasts, were introduced to the world of soil microbes and the vital role they play in soil health and plant nutrition.

Ellen Walker from EarthWhile Australia had audience members captivated while she introduced the four key groups of soil microbes – bacteria, fungi, nematodes and protozoa – and explained the different ways they contribute to plant and soil health. Plants dribble or exude sugars (produced via photosynthesis) from their roots to lure microbes in and ignite the mutually beneficial, symbiotic relationships that are so vital to plants.

Microbes can release minerals from bedrock, convert nutrients into forms that are more available to plants, protect plants from pathogens, and produce growth-promoting compounds. Microbes are essential for good soil structure and the production of soil organic matter. Fungi, particularly mycorrhizal fungi, have hyphal networks that can draw water and nutrients from deep within the soil, beyond the reach of root systems, and bring them directly to plants. This incredible relationship is ancient, with over 90% of native plants in Australia relying on this critical association.

Workshop participants were invited to bring along some of their own soil to analyse under a microscope. All soils had at least two identifiable microbe families, however the soil of the day (as declared by Ellen) came from a hay paddock belonging to a local beef farmer. This farmer has participated in the Healthy Estuaries WA Fertiliser Management program through PHCC and practises good grazing management, which is likely to have contributed to the abundance of life seen in his soil. This demonstrates that sustainable farming practices help to promote good soil health, which increases the nutritional value of the food produced and keeps our soils productive into the future.

The EarthWhile Microscopy workshop was funded by Soil Wise, which is funded by the National Landcare Program Smart Farms Small Grants – an Australian Government Initiative.

We acknowledge the Noongar people as Traditional Custodians of this land and pay our respects to all Elders past and present