Australasian Science: Australia's authority on science since 1938

Heavy Metal Farming

The sap exuding from Pycnandra acuminata in New Caledonia

The sap exuding from Pycnandra acuminata in New Caledonia contains up to 25% nickel.

By Antony van der Ent

Special plants called hyperaccumulators can extract valuable metals from mineralised soils, yielding metallic crops that are more valuable than food grown in soils that are unsuitable for normal agriculture.

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