Agriculture from the Ground Up
Sep 2, 2026 · 19 min · 12 segments
Send us Fan Mail Most of us left the periodic table behind at school. In the paddock it still matters. A lot. This is the first of two short…
Leonie SmithHost
If you've ever wondered why a single mine can produce more than one valuable commodity, depending on what's in demand that year, the answer is chemistry.

elements that behave similarly, or that are formed under the similar geological conditions, well they tend to occur together in the same ore bodies and mineral deposits.

But then you have lithium, which frequently turns up in the same deposits as tantalum and tin.

it reflects the geochemical conditions under which the parent rock itself formed.

The same underlying process that eventually gives us the parent materials that our soils develop from.

And that's also why the same groups of elements keep showing up together in your soil tests and in the same fertilizer bags.

Sodium and potassium behave really similar because they sit in the same column of the periodic table.

The geology that formed the parent material in the first place often concentrated those similar elements in the same places.

It's the same reasoning that explains why some regions in WA naturally have soils richer in particular elements than others.

If you've ever wondered why a single mine can produce more than one valuable commodity, depending on what's in demand that year, the answer is chemistry.

elements that behave similarly, or that are formed under the similar geological conditions, well they tend to occur together in the same ore bodies and mineral deposits.

But then you have lithium, which frequently turns up in the same deposits as tantalum and tin.

it reflects the geochemical conditions under which the parent rock itself formed.

The same underlying process that eventually gives us the parent materials that our soils develop from.

And that's also why the same groups of elements keep showing up together in your soil tests and in the same fertilizer bags.

Sodium and potassium behave really similar because they sit in the same column of the periodic table.

The geology that formed the parent material in the first place often concentrated those similar elements in the same places.

It's the same reasoning that explains why some regions in WA naturally have soils richer in particular elements than others.
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