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dc.contributor.author
Späti, Karin
dc.contributor.author
Huber, Robert
dc.contributor.author
Finger, Robert
dc.date.accessioned
2021-04-01T12:37:22Z
dc.date.available
2021-04-01T08:39:20Z
dc.date.available
2021-04-01T10:01:59Z
dc.date.available
2021-04-01T12:37:22Z
dc.date.issued
2021-07
dc.identifier.issn
0921-8009
dc.identifier.other
10.1016/j.ecolecon.2021.107047
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/477267
dc.identifier.doi
10.3929/ethz-b-000477267
dc.description.abstract
Improvements in the sustainability of agricultural production depend essentially on advances in the efficient use of nitrogen. Precision farming promises solutions in this respect. Variable rate technologies allow the right quantities of fertilizer to be applied at the right place. This helps to both maintain yields and avoid nitrogen losses. However, these technologies are still not widely adopted, especially in small-scale farming systems. Recent developments in sensing technologies, like drones or satellites, open up new opportunities for variable rate technologies. In this paper, we develop a bio-economic modelling framework to assess the usefulness of different sensing approaches in variable rate fertilization to measure environmental heterogeneity at field level, ranging from satellite imagery to drones and handheld N-sensors. We assess the utility of these sensing technologies and quantify the effects on yields, nitrogen input and associated net returns using wheat production in Switzerland as our case study. Our results show that net profits increase when a high-resolution technology is applied to fields which exhibit higher spatial heterogeneity of soil conditions and lower spatial autocorrelation of different soil types. However, even with a high degree of spatial heterogeneity within a field, both the overall utility of variable rate fertilization and the absolute differences in the net returns between the technologies remain low. Our results suggest that the additional cost of using a drone that provides the highest resolution should not exceed 4.5 CHF/ha compared to the use of a standard N-sensor or satellite imagery. Thus, the adoption of variable rate technologies depends essentially on the additional economic and environmental effects they generate. Therefore, it might be necessary to implement specific policy measures, such as taxes on nitrogen in combination with subsidies. Moreover, specific technology providers, such as contractors, may play a vital role in technology uptake since the economic benefits might only play out at larger spatial levels.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
dc.rights.uri
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject
Precision farming
en_US
dc.subject
Nitrogen
en_US
dc.subject
Variable rate fertilization
en_US
dc.subject
Wheat
en_US
dc.subject
Sensing
en_US
dc.title
Benefits of Increasing Information Accuracy in Variable Rate Technologies
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
dc.date.published
2021-03-31
ethz.journal.title
Ecological Economics
ethz.journal.volume
185
en_US
ethz.pages.start
107047
en_US
ethz.size
11 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.scopus
ethz.publication.place
Amsterdam
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02120 - Dep. Management, Technologie und Ökon. / Dep. of Management, Technology, and Ec.::09564 - Finger, Robert / Finger, Robert
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02120 - Dep. Management, Technologie und Ökon. / Dep. of Management, Technology, and Ec.::09564 - Finger, Robert / Finger, Robert
en_US
ethz.relation.isSupplementedBy
10.3929/ethz-b-000521124
ethz.date.deposited
2021-04-01T08:39:39Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-04-01T12:37:32Z
ethz.rosetta.lastUpdated
2024-02-02T13:27:36Z
ethz.rosetta.versionExported
true
ethz.COinS
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