A comparative study of conventional and controlled traffic in irrigated cotton: II. Economic and physiological analysis

Bartimote, Timothy and Quigley, Richard and Bennett, John McL. and Hall, Jake and Brodrick, Rose and Tan, Daniel K. Y. (2017) A comparative study of conventional and controlled traffic in irrigated cotton: II. Economic and physiological analysis. Soil and Tillage Research, 168. pp. 133-142. ISSN 0167-1987

Abstract

Expanding the row spacing of cotton can improve water efficiency by enlarging the micro-catchment for water and reducing the number of plants per hectare, as well as facilitating controlled traffic conversion of heavy harvesting machinery. This work assesses the effects of 1.5 m row spacing on cotton yield, fibre quality and water use efficiency (WUE) in comparison to the traditional 1.0 m row spacing cotton system. A replicated, side-by-side, commercial scale experiment was instigated with a 1.5 m row spacing controlled traffic system compared against a 1.0 m row spacing standard cotton system. Cotton fibre characteristics, fruiting position and yield were measured along with system water use, in the context of machine traffic. A detailed analysis of soil resource impact is provided in the companion paper. The 1.5 m row spacing system was shown to perform better than the 1.0 m row spacing system in terms of WUE and machine traffic impact over the two cotton seasons and single wheat season. In the 1.5 m system cotton WUE was greater with higher gross margin, even though less cotton yield was harvested. The 1.5 m row spacing cotton matured more slowly, led to stronger and longer cotton fibres with overall better fibre quality. Increased gross margin potential of the 1.5 m system was shown to entirely offset the cost of controlled traffic conversion within 1 season for a field where heavy machinery had not been used extensively.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version cannot be displayed due to copyright restrictions.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 16 Oct 2017 03:50
Last Modified: 16 Oct 2017 03:50
Uncontrolled Keywords: soil compaction; conservation farming; cotton row spacing
Fields of Research : 14 Economics > 1402 Applied Economics > 140201 Agricultural Economics
05 Environmental Sciences > 0503 Soil Sciences > 050305 Soil Physics
07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070302 Agronomy
05 Environmental Sciences > 0502 Environmental Science and Management > 050205 Environmental Management
07 Agricultural and Veterinary Sciences > 0701 Agriculture, Land and Farm Management > 070101 Agricultural Land Management
Socio-Economic Objective: D Environment > 96 Environment > 9614 Soils > 961499 Soils not elsewhere classified
D Environment > 96 Environment > 9609 Land and Water Management > 960999 Land and Water Management of Environments not elsewhere classified
Identification Number or DOI: 10.1016/j.still.2016.12.009
URI: http://eprints.usq.edu.au/id/eprint/30300

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