17 November 1995

Manganese caution

DRY soils could confuse manganese requirements this autumn, warns nutrient supplier Headland Agrochemicals.

Manganese is highly immobile in the rooting zone, as it has very little moisture in which to dissolve, the company says. "As a result the availability of the nutrient to the plant is very much lower than normal," warns Headlands Martin Davies

Cereal growers who base aut-umn applications on soil analysis alone could under-supply crops as a result. Mr Davies advocates tissue testing as the best way of checking for shortage this autumn. &#42