Algorithms for variable rate application of crop protection products
2012
Kempenaar, C. | Michielsen, J.G.P. | van de Zande, J.C.
Between 2006 and 2011 over 30 experiments were carried out with Variable Rate application of potato haulm killing herbicides and contact fungicides. Two systems were used to site-specifically dose on the basis of variation in crop biomass. The study shows that use of these pesticides can be reduced using variable rate application technology with 25–50% compared to standard practice, while efficacy remains good. In the case of potato haulm killing, % dead plant tissue and harvestability were measured, in the case of fungicides disease development was recorded. The need for standardisation and further R&D on development of dosing algorithms is discussed for different classes of pesticides.
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