Application of aerial imagery to analyse on-farm trials
Paper
Paper/Presentation Title | Application of aerial imagery to analyse on-farm trials |
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Presentation Type | Paper |
Authors | Basnet, B. (Author), Kelly, R. (Author), Jensen, T. (Author), Kane, T. (Author), Apan, A. (Author) and Butler, D. (Author) |
Journal or Proceedings Title | Proceedings of the 11th Australasian Remote Sensing and Photogrammetry Conference (ARSPC 2002) |
Number of Pages | 7 |
Year | 2002 |
Place of Publication | Australia |
ISBN | 0958136602 |
Web Address (URL) of Paper | http://trove.nla.gov.au/work/24199099?q&versionId=29242221 |
Conference/Event | 11th Australasian Remote Sensing and Photogrammetry Conference (ARSPC2002): Images to Information |
Event Details | 11th Australasian Remote Sensing and Photogrammetry Conference (ARSPC2002): Images to Information Event Date 02 to end of 06 Sep 2002 Event Location Brisbane, Australia |
Abstract | Aerial imagery, using a standard four-band multi-spectral video, was taken of an on-farm wheat variety strip-trial in southern Queensland in 2001. The image was explored to highlight within-strip and within-field variability in crop biomass and performance. A good correlation was found between NDVI at flowering and final grain yield (r2 = 0.77; n = 10), suggesting that the image could provide a surrogate measure of yield variability. Transects taken through the centre of each variety strip provided a useful indicator of within-row variability, although spatial correlation was high. Coefficients of variation ranged between 12 and 20% for the variety strips, which suggested that much of the observed variation was due to random effects. Yield differences at harvest between varieties were modest, but pseudo-replication analysis could provide a useful means of determining what might have been an optimal strip length. |
ANZSRC Field of Research 2020 | 300207. Agricultural systems analysis and modelling |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Department of Primary Industries, Queensland |
Grainco, Toowoomba, Australia | |
Department of Surveying and Land Information | |
Department of Primary Industries and Fisheries, Queensland | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q391z/application-of-aerial-imagery-to-analyse-on-farm-trials
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