Should crop sequences in Western Australia include more lupins?
C. d’Abbadie A , S. Kharel A , R. Kingwell
A B C * and A. Abadi Ghadim A
A
B
C
Abstract
Reducing greenhouse gas emissions is an increasing priority for Australian grain producers. Could substituting lupins for canola, as a rotational break crop, enable farmers to reduce their emissions by less use of nitrogenous fertilisers?
This study aims to identify if replacing canola with lupins in rotations at a range of locations in Western Australia’s grainbelt is environmentally and economically attractive.
Bio-economic simulation modelling is used to examine the gross margins and emissions associated with replacement of canola by lupins at 14 locations in the grainbelt of Western Australia in various land use sequences.
Replacing canola with lupins unambiguously leads to reduced emissions in crop sequences at all locations considered. However, the higher gross margins from canola production cause lupins to only be a preferred break crop option at 4 of the 14 locations. Even with various plausible incentives to favour lupins, they remain economically unattractive at most locations other than those where lupins are well adapted to the environment.
Lupins’ current lack of commercial attractiveness for farmers limits its role in emissions reduction in the region’s farming systems.
The profitability of lupins needs to increase if lupins are to be widely readopted. This requires developing higher yielding lupin varieties, grain quality improvements, and policy changes to reward lower emission cereals. However, this study shows these changes, apart from yield improvement, are unlikely in the short term. At locations with suitable soils alternative pulse crops may offer higher gross margins whilst delivering emission reductions.
Keywords: break crops, canola, crop sequences, dryland cropping, emissions, fertilisers, gross margins, lupins.
References
Abadi Ghadim AK, Pannell DJ (1999) A conceptual framework of adoption of an agricultural innovation. Agricultural Economics 21(2), 145-154.
| Crossref | Google Scholar |
ABARES (2023) Australian agricultural commodity statistics: pulse and oilseed spreadsheets. Available at https://www.agriculture.gov.au/abares/research-topics/agricultural-outlook/data#_2022 [accessed 4 April 2023]
AEGIC (2021) Australian canola. Australian Export Grains Innovation Centre, Perth. Available at https://aegic.org.au/wp-content/uploads/2021/03/AEGIC-Grain-Note-canola_LR.pdf
Anderson G, Brennan R, Bell R, Chen W (2015) ‘Making better fertiliser decisions for cropping systems in Western Australia. Soil test – crop response relationships and critical soil test values and ranges. Bulletin 4000.’ (Department of Primary Industries and Regional Development). Available at https://library.dpird.wa.gov.au/cgi/viewcontent.cgi?article=1042&context=bulletins [accessed 7 July 2023]
Angus JF, Kirkegaard JA, Hunt JR, Ryan MH, Ohlander L, Peoples MB (2015) Break crops and rotations for wheat. Crop & Pasture Science 66, 523-552.
| Crossref | Google Scholar |
Barrow NJ (1969) The accumulation of soil organic matter under pasture and its effect on soil properties. Australian Journal of Experimental Agriculture and Animal Husbandry 9, 437-444.
| Crossref | Google Scholar |
Barton L, Murphy DV, Butterbach-Bahl K (2013) Influence of crop rotation and liming on greenhouse gas emissions from a semi-arid soil. Agriculture, Ecosystems & Environment 167, 23-32.
| Crossref | Google Scholar |
Barton L, Thamo T, Engelbrecht D, Biswas WK (2014) Does growing grain legumes or applying lime cost effectively lower greenhouse gas emissions from wheat production in a semi-arid climate? Journal of Cleaner Production 83, 194-203.
| Crossref | Google Scholar |
Blair N, Crocker GJ (2000) Crop rotation effects on soil carbon and physical fertility of two Australian soils. Australian Journal of Soil Research 38, 71-84.
| Crossref | Google Scholar |
CER (2023) Greenhouse gases and energy. Clean Energy Regulator. Available at https://www.cleanenergyregulator.gov.au/NGER/About-the-National-Greenhouse-and-Energy-Reporting-scheme/Greenhouse-gases-and-energy
Clements JC, Dracup M, Buirchell BJ, Smith CG (2005) Variation for seed coat and pod wall percentage and other traits in a germplasm collection and historical cultivars of lupins. Australian Journal of Agricultural Research 56, 75-83.
| Crossref | Google Scholar |
DPIRD (2023a) Lupin in Western Australian farming. Available at https://www.agric.wa.gov.au/lupins/lupin-western-australian-farming
DPIRD (2023b) Early history of lupins in Western Australia. Available at https://www.agric.wa.gov.au/lupins/early-history-lupins-western-australia
Drinkwater LE, Wagoner P, Sarrantonio M (1998) Legume-based cropping systems have reduced carbon and nitrogen losses. Nature 396, 262-265.
| Crossref | Google Scholar |
Gan Y, Liang C, Chai Q, Lemke RL, Campbell CA, Zentner RP (2014) Improving farming practices reduces the carbon footprint of spring wheat production. Nature Communications 5, 5012.
| Crossref | Google Scholar |
GGP (2015) GHG protocol agricultural guidance. p. 103. Greenhouse Gas Protocol. Available at https://ghgprotocol.org/sites/default/files/standards/GHG%20Protocol%20Agricultural%20Guidance%20%28April%2026%29_0.pdf (accessed April 2023)
GIWA (2022) Crop report, July 2022. Grains Industry Association of Western Australia. Available at https://www.giwa.org.au/wa-crop-reports/2022-season/giwa-crop-report-july-2022/
GIWA (2023) Crop report, February 2023. Grains Industry Association of Western Australia. Available at https://www.giwa.org.au/wa-crop-reports/2022-season/giwa-crop-report-january-2023/
Harries M (2023) Interactions between biophysical constraints and land use in rainfed cropping systems of southwest Australia. PhD thesis, School of Agriculture and Environment, University of Western Australia. Available at https://research-repository.uwa.edu.au/files/250316545/THESIS_DOCTOR_OF_PHILOSOPHY_HARRIES_Martin_John_2023.pdf
Harries M, Flower KC, Scanlan CA (2021) Sustainability of nutrient management in grain production systems of south-west Australia. Crop & Pasture Science 72, 197-212.
| Crossref | Google Scholar |
Jarden Australia (2023) Spot ACCUs. Available at https://accus.com.au/
Keogh M (2012) Including risk in enterprise decisions in Australia’s riskiest businesses. Farm Policy Journal 9, 11-21.
| Google Scholar |
Kharel S (2023) EVALUS user manual: first edition. Western Australian Department of Primary Industries and Regional Development, Perth. Available at http://dx.doi.org/10.13140/RG.2.2.29366.27209
Kharel S, d’Abbadie C, Abadi A, Kingwell R (2022) Reducing farming system emissions via spatial application of payoff functions. Agricultural Systems 203, 103534.
| Crossref | Google Scholar |
Kingwell R (2012) Revenue volatility faced by some of the world’s major wheat producers. Farm Policy Journal 9, 23-33.
| Google Scholar |
Lawes R, Mata G, Richetti J, Fletcher A, Herrmann C (2022) Using remote sensing, process-based crop models, and machine learning to evaluate crop rotations across 20 million hectares in Western Australia. Agronomy for Sustainable Development 42, 120.
| Crossref | Google Scholar |
Lo B, Kasapis S, Farahnaky A (2021) Lupin protein: isolation and techno-functional properties, a review. Food Hydrocolloids 112, 106318.
| Crossref | Google Scholar |
Loi A, Thomas DT, Yates RJ, Harrison RJ, D’Antuono M, Re GA, Norman HC, Howieson JG (2022) Cereal and oil seed crops response to organic nitrogen when grown in rotation with annual aerial-seeded pasture legumes. The Journal of Agricultural Science 160(3–4), 207-219.
| Crossref | Google Scholar |
Lopez MB, Ekonomou A, Eckard RJ (2022) A greenhouse accounting framework for crop production (G-GAF) based on the Australian National Greenhouse Gas Inventory methodology. Available at http://www.piccc.org.au/resources/Tools [Updated October 2022]
Lopez MB, Dunn J, Wiedemann S, Eckard R (2023) A greenhouse accounting framework for beef and sheep properties based on the Australian National Greenhouse Gas Inventory methodology. Available at http://piccc.org.au/Tools [Updated January 2023]
Ma Y, Schwenke G, Sun L, Liu DL, Wang B, Yang B (2018) Modeling the impact of crop rotation with legume on nitrous oxide emissions from rain-fed agricultural systems in Australia under alternative future climate scenarios. Science of The Total Environment 630, 1544-1552.
| Crossref | Google Scholar | PubMed |
Piquet-Pissaloux A (2022) Environmental footprints of legumes-based agroecosystems for sustainable development. In ‘Advances in legumes for sustainable intensification’. (Eds RS Meena, S Kumar) pp. 421–440. (Academic Press) doi:10.1016/B978-0-323-85797-0.00012-4
Robertson MJ, Lawes RA, Bathgate A, Byrne F, White P, Sands R (2010) Determinants of the proportion of break crops on Western Australian broadacre farms. Crop & Pasture Science 61, 203-213.
| Crossref | Google Scholar |
Rowland IC, Mason M, Hamblin J (1989) The nitrogen response of wheat crops following lupins. Journal of the Department of Agriculture, Western Australia, Series 4 30(1), 7 Available at https://researchlibrary.agric.wa.gov.au/journal_agriculture4/vol30/iss1/7.
| Google Scholar |
Seymour M, Kirkegaard JA, Peoples MB, White PF, French RJ (2012) Break-crop benefits to wheat in Western Australia – insights from over three decades of research. Crop & Pasture Science 63, 1-16.
| Crossref | Google Scholar |
Taylor L, White B, Brake R (2022) Calculating Carbon Emissions in WA’s Grain Industry. Available at https://www.agric.wa.gov.au/sites/gateway/files/Carbon Neutral Grain Pilot Report_0.pdf
Unkovich MJ, Pate JS, Hamblin J (1994) The nitrogen economy of broadacre lupin in southwest Australia. Australian Journal of Agricultural Research 45, 149-164.
| Crossref | Google Scholar |
Virk AL, Liu W-S, Chen Z, N´Dri Bohoussou Y, Cheema MA, Khan KS, Zhao X, Zhang H-L (2022) Effects of different tillage systems and cropping sequences on soil physicochemical properties and greenhouse gas emissions. Agriculture, Ecosystems & Environment 335, 108010.
| Crossref | Google Scholar |
Wilkinson I (2019) Western Australian canola industry. Available at https://www.agric.wa.gov.au/canola/western-australian-canola-industry [accessed 29 March 2023]
