Application of probability analysis to assess nitrogen supply to grain crops in Northern Australia
Article
Article Title | Application of probability analysis to assess nitrogen supply to grain crops in Northern Australia |
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ERA Journal ID | 5325 |
Article Category | Article |
Authors | Kelly, R. M. (Author), Strong, W. M. (Author), Jensen, T. A. (Author) and Butler, D. (Author) |
Journal Title | Precision Agriculture |
Journal Citation | 5 (2), pp. 95-110 |
Number of Pages | 16 |
Year | 2004 |
Publisher | Springer |
Place of Publication | New York, NY. United States |
ISSN | 1385-2256 |
1573-1618 | |
Digital Object Identifier (DOI) | https://doi.org/10.1023/B:PRAG.0000022356.01537.67 |
Abstract | Grain yield and protein of cereal crops in northern Australia provide a useful indicator of the supply of available nitrogen (N) to the crop. Our intention was to utilize this principle on a site-specific basis through an associated probabilistic framework to identify the likelihood that grain yield was limited by N supply. Yield and protein data were taken at harvest from sorghum, wheat and barley crops near Dalby, southern Queensland, in 1999. Considerable variation was found in grain yield for the three crops, but less so for grain protein. Frequency–response relationships, derived from historical multiple N field experiments, were applied to identify areas where grain yield was limited by N supply. This approach |
Keywords | site-specific nitrogen management; grain protein variation; likelihood mapping; grain nitrogen; nitrogen supply |
ANZSRC Field of Research 2020 | 300407. Crop and pasture nutrition |
490506. Probability theory | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Department of Primary Industries, Queensland |
Department of Primary Industries and Fisheries, Queensland |
https://research.usq.edu.au/item/9zv00/application-of-probability-analysis-to-assess-nitrogen-supply-to-grain-crops-in-northern-australia
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