29 September 1995

Potash rethink

WIDER removal of straw this year means arable farmers need to rethink their potash strategy, urges John Hollies of the Potash Development Association.

40% of cereal soils are already low in potash and the dry summer has encouraged extra potash retention in removed straw. To prevent a worsening situation he advises growers to invest profits from straw sales in extra applications. He also stresses that straw removes 50% more potash than phospate, making a standard 0: 24:24 fertiliser inappropriate.