Ravensdown has invested heavily in technology to improve the precision with which fertiliser can be applied only to where it is needed and at the optimum rates for plant growth without leaching into the environment. Computer-controlled topdressing aircraft doors adjust the spreading rate and avoid sensitive areas such as waterways; GPS-guided ground spreaders reduce risk of under-or over-application of nutrients, and HawkEye, our visual mapping tool improves decision making and compliance.