Agronomic and technical evaluation of herbicide spot spraying in maize based on high-resolution aerial weed maps - an on-farm trial

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dc.contributor.authorAllmendinger, Alicia
dc.contributor.authorSpaeth, Michael
dc.contributor.authorSaile, Marcus
dc.contributor.authorPeteinatos, Gerassimos G.
dc.contributor.authorGerhards, Roland
dc.contributor.corporateAllmendinger, Alicia; Department of Weed Science, Institute for Phytomedicine, University of Hohenheim, 70599 Stuttgart, Germany; (A.A.);
dc.contributor.corporateSpaeth, Michael; Department of Weed Science, Institute for Phytomedicine, University of Hohenheim, 70599 Stuttgart, Germany; (A.A.);
dc.contributor.corporateSaile, Marcus; Department of Weed Science, Institute for Phytomedicine, University of Hohenheim, 70599 Stuttgart, Germany; (A.A.);
dc.contributor.corporatePeteinatos, Gerassimos G.; ELGO-DIMITRA, Leof Dimokratias 61, Agii Anargiri, 135 61 Athens, Greece;
dc.contributor.corporateGerhards, Roland; Department of Weed Science, Institute for Phytomedicine, University of Hohenheim, 70599 Stuttgart, Germany; (A.A.);
dc.contributor.editorRossi, Vittorio
dc.date.accessioned2024-10-24T10:34:55Z
dc.date.available2024-10-24T10:34:55Z
dc.date.issued2024
dc.date.updated2024-10-02T07:20:18Z
dc.description.abstractSpot spraying can significantly reduce herbicide use while maintaining equal weed control efficacy as a broadcast application of herbicides. Several online spot-spraying systems have been developed, with sensors mounted on the sprayer or by recording the RTK-GNSS position of each crop seed. In this study, spot spraying was realized offline based on georeferenced unmanned aerial vehicle (UAV) images with high spatial resolution. Studies were conducted in four maize fields in Southwestern Germany in 2023. A randomized complete block design was used with seven treatments containing broadcast and spot applications of pre-emergence and post-emergence herbicides. Post-emergence herbicides were applied at 2–4-leaf and at 6–8-leaf stages of maize. Weed and crop density, weed control efficacy (WCE), crop losses, accuracy of weed classification in UAV images, herbicide savings and maize yield were measured and analyzed. On average, 94% of all weed plants were correctly identified in the UAV images with the automatic classifier. Spot-spraying achieved up to 86% WCE, which was equal to the broadcast herbicide treatment. Early spot spraying saved 47% of herbicides compared to the broadcast herbicide application. Maize yields in the spot-spraying plots were equal to the broadcast herbicide application plots. This study demonstrates that spot-spraying based on UAV weed maps is feasible and provides a significant reduction in herbicide use.
dc.description.sponsorshipThis research was funded by EU-EIT FOOD as projects #20140 and #20140-21 “DACWEED”: Detection and Actuation system for WEED management. EIT FOOD is the innovation community on Food of the European Institute of Innovation and Technology (EIT), an EU body under Horizon 2020, the EU Framework Program for Research and Innovation.
dc.description.sponsorshipEU-EIT FOOD
dc.identifier.urihttps://doi.org/10.3390/plants13152164
dc.identifier.urihttps://hohpublica.uni-hohenheim.de/handle/123456789/16662
dc.language.isoeng
dc.rights.licensecc_by
dc.subjectSpot spraying
dc.subjectWeed detection
dc.subjectUAV imagery
dc.subjectWeed control efficacy
dc.subject.ddc630
dc.titleAgronomic and technical evaluation of herbicide spot spraying in maize based on high-resolution aerial weed maps - an on-farm trialen
dc.type.diniArticle
dcterms.bibliographicCitationPlants, 13 (2024), 15, 2164. https://doi.org/10.3390/plants13152164. ISSN: 2223-7747 Basel : MDPI
dcterms.bibliographicCitation.articlenumber2164
dcterms.bibliographicCitation.issn2223-7747
dcterms.bibliographicCitation.issue15
dcterms.bibliographicCitation.journaltitlePlants
dcterms.bibliographicCitation.originalpublishernameMDPI
dcterms.bibliographicCitation.originalpublisherplaceBasel
dcterms.bibliographicCitation.volume13
local.export.bibtex@article{Allmendinger2024-08-05, doi = {10.3390/plants13152164}, author = {Allmendinger, Alicia and Spaeth, Michael and Saile, Marcus et al.}, title = {Agronomic and technical evaluation of herbicide spot spraying in maize based on high-resolution aerial weed maps - an on-farm trial}, journal = {Plants}, year = {2024-08-05}, volume = {13}, number = {15}, }
local.export.bibtexAuthorAllmendinger, Alicia and Spaeth, Michael and Saile, Marcus et al.
local.export.bibtexKeyAllmendinger2024-08-05
local.export.bibtexType@article

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