Agronomic performance of wheat (Triticum aestivum L.) and fertiliser use efficiency as affected by controlled and non-controlled traffic of farm machinery
Paper
Paper/Presentation Title | Agronomic performance of wheat (Triticum aestivum L.) and fertiliser use efficiency as affected by controlled and non-controlled traffic of farm machinery |
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Presentation Type | Paper |
Authors | Hussein, Mahmood A. H. (Author), Antille, Diogenes L. (Author), Chen, Guangnan (Author), Luhaib, Adnan A. A. (Author), Kodur, Shreevatsa (Author) and Tullberg, Jeff N. (Author) |
Journal or Proceedings Title | Proceedings of the 2017 ASABE Annual International Meeting |
Number of Pages | 11 |
Year | 2017 |
Place of Publication | Spokane, Washington |
Digital Object Identifier (DOI) | https://doi.org/10.13031/aim.201700586 |
Web Address (URL) of Paper | https://www.asabe.org/meetings-events/2017/07/2017-asabe-annual-international-meeting.aspx |
Conference/Event | 2017 ASABE Annual International Meeting |
Event Details | 2017 ASABE Annual International Meeting Event Date 16 to end of 19 Jul 2017 Event Location Spokane, United States |
Abstract | Controlled traffic farming (CTF) is a mechanization system that confines all load-bearing wheels to permanent traffic lanes, thus optimizing productivity of non-compacted crop beds for given energy, fertilizer and water inputs. This study investigated the agronomic and economic performance of winter wheat (Triticum aestivum L.) grown in compacted and non-compacted soils to represent the conditions of non-CTF and CTF systems, respectively. Yield-to-nitrogen (N) responses were obtained by applying urea (46% N), urea treated with 3,4-dimethyl pyrazole phosphate (DMPP), commercially known as ENTEC® urea (46% N), and urea ammonium nitrate (solution, 30%N) at rates between 0 (control) and 300 kg ha-1 N at regular increments of 100 kg ha-1 N. The results showed that the CTF system increased grain yield, total aboveground biomass, and harvest index by 12%, 9%, and 4%, respectively compared to the crop grown under the non-CTF system (P<0.05). Overall, the agronomic efficiency was approximately 35% higher in CTF compared with non-CTF (≈4 vs. 3 kg kg-1, respectively). Nitrogen use efficiency (NUE) was approximately 50% higher in CTF compared with non-CTF; however, there was not fertilizer type effect on NUE. On average, the optimal economic nitrogen application rates and corresponding grain yields were 122 kg ha-1 and 3337 kg ha-1, and 175 and 3150 kg ha-1 in the CTF and non-CTF systems, respectively. This work demonstrated that significant improvements in fertilizer-N recoveries may not be realized with enhanced nitrogen formulations alone and that avoidance of (random) traffic compaction is a pre-requisite for improved fertilizer use efficiency. |
Keywords | controlled traffic, DMPP, enhanced N fertilizer formulations, nitrogen use-efficiency, soil compaction, urea ammonium nitrate, urea |
ANZSRC Field of Research 2020 | 409901. Agricultural engineering |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | National Centre for Engineering in Agriculture |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q45xq/agronomic-performance-of-wheat-triticum-aestivum-l-and-fertiliser-use-efficiency-as-affected-by-controlled-and-non-controlled-traffic-of-farm-machinery
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