Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 440693
Title Development of sensor guided precision sprayers
Author(s) Nieuwenhuizen, A.T.; Zande, J.C. van de
Source In: Proceedings of the International Advances in Pesticide Application 2012. - - p. 121 - 128.
Event International Advances in Pesticide Application, Wageningen, the Netherlands, 2012-01-10/2012-01-12
Department(s) PPO/PRI AGRO Field Technology Innovations
Publication type Contribution in proceedings
Publication year 2013
Abstract Sensor guided precision sprayers were developed to automate the spray process with a focus on emission reduction and identical or increased efficacy, with the precision agriculture concept in mind. Within the project “Innovations2” sensor guided precision sprayers were introduced to leek, strawberry, and pear production systems. This paper focusses on the combination of sensor signals and spray technique. The development of decision algorithms from sensor data and the translation to applied spray volumes is explained. Validation of the spray distribution was made with spray deposition trials in the case study of the strawberry sprayer. The sensor guided sprayer applied on average 11% less spray volume per hectare than conventional boom spraying, with an increased spray deposition on strawberry leaves of 56% on average. The decision algorithm that was used to convert crop canopy density to applied spray volume rate is still under development and has to be improved to balance between lowering the dose and keeping acceptable efficacy. Though, to realise accurate decision algorithms, thorough dose effect studies are required in addition to spray deposition measurements that validate the technical spray results.
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