The legacy of pasture drill rows on soil chemical characteristics and subsequent wheat production

Article


Hayes, Richard C., Li, Guangdi D., Rawnsley, Richard P., Pembleton, Keith G., Corkrey, Ross and Peoples, Mark B.. 2020. "The legacy of pasture drill rows on soil chemical characteristics and subsequent wheat production." Plant and Soil: international journal on plant-soil relationships. 455 (1-2), pp. 319-337. https://doi.org/10.1007/s11104-020-04689-9
Article Title

The legacy of pasture drill rows on soil chemical characteristics and subsequent wheat production

ERA Journal ID2642
Article CategoryArticle
AuthorsHayes, Richard C. (Author), Li, Guangdi D. (Author), Rawnsley, Richard P. (Author), Pembleton, Keith G. (Author), Corkrey, Ross (Author) and Peoples, Mark B. (Author)
Journal TitlePlant and Soil: international journal on plant-soil relationships
Journal Citation455 (1-2), pp. 319-337
Number of Pages19
Year2020
PublisherSpringer
Place of PublicationSwitzerland
ISSN0032-079X
1573-5036
Digital Object Identifier (DOI)https://doi.org/10.1007/s11104-020-04689-9
Abstract

Aims: To examine the legacy of pasture drill rows sown to various configurations of subterranean clover (Trifolium subterraneum L.), lucerne (Medicago sativa L.) and phalaris (Phalaris aquatica L.), on soil chemical characteristics and wheat (Triticum aestivum L.) production in the year following pasture removal. Methods: A field experiment comparing 10 pasture species combination treatments conducted on a Red Kandosol soil in a semi-arid environment in south-eastern Australia was monitored from the end of the pasture phase until harvest of the first wheat crop. Quadrats were fixed to the soil surface to mark previous pasture drill rows. Soil within and between rows was sampled to 0.6 m at three times and analysed for mineral nitrogen (N), pH, total carbon (C) and available macro-nutrients, and related to wheat growth rate and yield. Results: Significantly higher total C, mineral N and plant-available potassium (K), and lower sulphur (S) concentrations, were still evident in the original pasture drill row after grain harvest compared to the inter-row area, four years after pastures were sown. Grain yield was 11% greater in wheat growing on the original pasture drill row compared to between rows. Pure lucerne swards had less mineralised N than mixed lucerne swards associated with reduced water in the soil profile. Conclusions: This study establishes the enduring legacy of pasture drill rows observed up to 14 months post-removal and highlights the opportunity to improve soil fertility through manipulation of pasture sowing configurations in a cropping field in south-eastern Australia.

Keywordspasture composition; legumes; perennial grass; nitrogen; wheat yield
ANZSRC Field of Research 2020300207. Agricultural systems analysis and modelling
300403. Agronomy
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Byline AffiliationsCharles Sturt University
University of Tasmania
School of Sciences
Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia
Institution of OriginUniversity of Southern Queensland
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Pembleton, K. G., Cunningham, S. M. and Volenec, J. J.. 2010. "Effect of summer irrigation on seasonal changes in taproot reserves and the expression of winter dormancy/activity in four contrasting lucerne cultivars." Crop and Pasture Science. 61 (11), pp. 873 - 884. https://doi.org/10.1071/CP10030
Utilising leaf number as an indicator for defoliation to restrict stem growth in rhodes grass (Chloris gayana) cv. Callide
Pembleton, K.G., Lowe, K.F. and Bahnisch, L.M.. 2009. "Utilising leaf number as an indicator for defoliation to restrict stem growth in rhodes grass (Chloris gayana) cv. Callide." Tropical Grasslands. 43, pp. 79-85.
Water deficit alters canopy structure but not photosynthesis in regrowing alfalfa (Medicago sativa L.)
Pembleton, Keith, Rawnsley, Richard P., Donaghy, Daniel J. and Volenec, Jeffrey J.. 2009. "Water deficit alters canopy structure but not photosynthesis in regrowing alfalfa (Medicago sativa L.)." Crop Science: a journal serving the international community of crop scientists. 49 (2), pp. 722-731. https://doi.org/10.2135/cropsci2008.08.0456
Effect of defoliation interval and height on the growth and quality of Arachis pintoi cv. Amarillo
Sinclair, K., Lowe, K.F. and Pembleton, K.G.. 2007. "Effect of defoliation interval and height on the growth and quality of Arachis pintoi cv. Amarillo." Tropical Grasslands. 41 (4), pp. 260-268.
Potential of tropical forages for the Tasmanian dairy industry
Pembleton, Keith, Rawnsley, Richard, Donaghy, Danny and Chamberlain, Peter. 2006. "Potential of tropical forages for the Tasmanian dairy industry." 13th Australian Agronomy Conference 2006. Perth, Australia 10 - 14 Sep 2006 Australia. Australian Society of Agronomy.