PPP: a plant protection program1

摘要

PPP is a data program that facilitates the recording and handling of plant samples sent to a diagnostic laboratory. The program can be used to retrieve help information from earlier advisory work to produce written replies to the sender. The letters are written both to files and to printers. The program may be used as a single user program or as a network program applying an internal communication program. A decision support system designed to help in advisory work may be used together with the PPP or as a stand‐alone module (CaSK Aid