Doctor EarthAustralian journal
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Soil, pasture and paddock

The Land

How Australian soils fail, recover and feed us — from cracking clays to suburban compost heaps.

Cattle grazing lush pasture at Bega in southern New South Wales, a reminder that biomass still depends on water

The Land

Cover crops for hot, dry seasons

Cover crops fail in Australia when they are planted on a northern-hemisphere calendar. This essay sets legumes against cereals, Mediterranean winters against summer-rainfall districts, and the need to terminate a cover before it steals the spring.

Dr Maya Chen · 21 April 2025 · 8 min read

A typical backyard compost bin with the lid open, showing mixed garden waste

The Land

Compost that works in Australian suburbs

A suburban heap is not a farm windrow. This is a practical note on hot and cold piles, rats and soldier flies, council bins, January heat, and how finished compost behaves on a Perth sand versus a Melbourne clay.

Tom Phelan · 10 February 2025 · 7 min read

Cattle grazing on improved pasture near Bega in southern New South Wales

The Land

Regenerative grazing in the rangelands

Rest, density and water points can change how cattle use a run, but they do not manufacture rain. A field note on northern and southern rangelands, feral grazers, and what regeneration can honestly do in a drought.

Tom Phelan · 2 September 2024 · 8 min read

Red Sodosol soil profile near Coober Pedy in South Australia, showing contrasting horizons typical of arid duplex soils

The Land

Soil carbon on working farms

Soil carbon is a stock you can measure, not a vibe you can market. This essay separates organic matter from Australian Carbon Credit Units, pasture from cropping, and a one-per-cent claim from what a paddock can actually hold.

Dr Maya Chen · 17 June 2024 · 7 min read

Grey Vertosol soil profile in the Chinchilla district of south Queensland, showing deep cracking clay horizons

The Land

How to read an Australian soil profile

A cracking clay on the Darling Downs is not a sand on the Swan Coastal Plain. This field note shows how to read colour, structure, pH and sodicity in an Australian profile — from a dug pit or a roadside cutting.

Dr Maya Chen · 11 March 2024 · 7 min read