Premium
GEWIS, a weather‐based decision support system for timing the application of plant protection products *
Author(s) -
Bouma E.
Publication year - 2003
Publication title -
eppo bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.327
H-Index - 36
eISSN - 1365-2338
pISSN - 0250-8052
DOI - 10.1111/j.1365-2338.2003.00685.x
Subject(s) - process (computing) , product (mathematics) , acronym , computer science , decision support system , moment (physics) , order (exchange) , environmental science , risk analysis (engineering) , agricultural engineering , business , mathematics , engineering , data mining , linguistics , philosophy , physics , geometry , classical mechanics , operating system , finance
Weather circumstances before, during and after the application of plant protection products are very important for efficacy. Knowledge of the behaviour of products in relation to weather circumstances can be an aid to achieving better efficacy and even serve as a tool for reducing the dose in well‐defined applications. Formulation type and dynamic build‐up of the wax layer on the upper side of the leaf are important for sticking and the speed and method of uptake of active substances into the leaves. It is difficult for farmers to combine all the important processes. Knowledge of the relations between plant protection products and meteorological conditions is combined in a decision support system (DSS) with the acronym GEWIS. The system calculates (hourly based) the physical behaviour of products at different stages in the process. With the help of this DSS, the farmer can choose the best moment of the day to apply a product with the optimum dose. Furthermore, users learn when it is possible to apply lower dosages and when not to apply at all.