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Trends In Wheat Yields And Soil Organic Carbon In The Permanent Rotation Trial At The Waite Agricultural Research Institute, South Australia

P. Grace, J. Oades, H. Keith, T. Hancock
Published 1995 · Biology

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The Permanent Rotation Trial at the Waite Agricultural Research Institute in South Australia was established on a red-brown earth in 1925, with predominately cereal-long fallow rotations on 34 adjacent plots. The trial was upgraded in 1948 to include a greater proportion of pasture leys in the rotations and currently contains 11 treatments. The trial is unreplicated; however, each phase of a sequence is represented each year. Seven of the original rotations have remained in an unbroken sequence since 1925: continuous wheat (W), wheat-fallow (WF), wheat-peas (WPe), wheat-pasture-fallow (WPaF), wheatoats- fallow (WOF), wheat-barley-peas (WBPe), wheat-oats-pasture-fallow (WOPaF). For the 11 rotations, soil organic carbon (SOC) in the top 10 cm declined from 2.75% in 1925 to a mean value of 1.56% in 1993. One plot, which had reverted to permanent pasture in 1950, showed the smallest decline with an SOC content of 2.46% in 1993. The greatest declines in SOC were in the 4 original rotations that included fallow phases in the sequence (mean value of 1.22%). In the WF rotation the SOC content had declined from 2.75 to 1.04% during 68 years of cropping. Associated yield decreases showed that the treatment could not sustain production. Soil organic C declined linearly with increasing frequency of fallows and decreasing frequency of pasture in the rotations. Average grain yields (1925-93) in the 7 original sequences ranged from 2.64 t/ha in WOPaF to 0.89 t/ha in the continuous W plot. The linear decline in yields for WBPe, WPaF, WPe, and WOF treatments indicate a convergence in the 1990s under current management, with an average yield of 1.54 t/ha in 1993 and average SOC in the top 10 cm of 1.32%. We hypothesise that the gradual increase in grain yields from the continuous W plot since the 1960s is the result of a gradual build-up of light fraction organic material, which assists in the maintainence of structure and nutrient availability.



This paper is referenced by
10.1016/S0269-7491(01)00262-7
Changes in soil quality and below-ground carbon storage with conversion of traditional agricultural crop lands to bioenergy crop production.
V. R. Tolber (2002)
10.1002/JPLN.200625192
Trends in grain yields and soil organic C in a long-term fertilization experiment in the China Loess Plateau
Tinglu Fan (2008)
10.1201/B17101-7
Management of Soil Organic Matter
N. Fageria (2014)
10.2134/AGRONJ2002.2400
Potential of forages to diversify cropping systems in the Northern Great Plains
M. Entz (2002)
10.3126/JIAAS.V33I0.20694
Soil Properties and Earthworm Dynamics Affected by Land Use Systems in Western Chitwan, Nepal
Rambadan Phoolchand Chauhan (2014)
10.2135/CSSASPECPUB32.C21
Acidification and Its Evolution under Australian Dryland Cropping Systems
W. Slattery (2004)
10.1007/978-3-642-20256-8_9
Tillage and Crop Stubble Management and Soil Health in a Changing Climate
Brian Murphy (2011)
Agronomic Potential Of Biochar In Contrasting Maize-Based Temperate And Tropical Agro-Ecological Zones
David Guerena (2012)
The impact of tillage practices and crop residue (stubble) retention in the cropping system of Western Australia
G. Anderson (2009)
10.1080/01448765.1999.9754832
Is an Enhanced Soil Biological Community, Relative to Conventional Neighbours, a Consistent Feature of Alternative (Organic and Biodynamic) Agricultural Systems?
M. Ryan (1999)
10.1201/9781420032291.CH10
Effect of Soil Management Practices on the Sequestration of Carbon in Duplex Soils of Southeastern Australia
A. Surapaneni (2002)
Carbon accumulation and humification in soils of abandoned former agricultural lands in the hemiboreal zone.
I. Kukuļs (2015)
10.1016/S0378-1127(01)00740-X
Change in soil carbon following afforestation
K. Paul (2002)
10.1016/S0167-1987(03)00063-1
Response of soil fertility indices to a short phase of Australian woody species, continuous annual crop rotations or a permanent pasture
P. Mele (2003)
10.1071/RJ13055
High levels of diversity for seed and forage production exist in Cullen australasicum, a potential new perennial forage legume for dry environments in southern Australia
Alan Wayne Humphries (2014)
10.4141/CJPS-2014-173
Review: Redesigning Canadian prairie cropping systems for profitability, sustainability, and resilience
MartensJoanne R. Thiessen (2015)
10.1016/S0167-1987(02)00139-3
Is there a critical level of organic matter in the agricultural soils of temperate regions: a review
P. Loveland (2003)
10.1016/J.STILL.2005.08.019
Barley yield response to soil organic matter and texture in the Pampas of Argentina
A. Quiroga (2006)
10.1007/s11104-011-0880-1
Strategies and agronomic interventions to improve the phosphorus-use efficiency of farming systems
R. Simpson (2011)
10.3390/SU10020518
Potential for Conservation Agriculture in the Dry Marginal Zone of Central Syria: A Preliminary Assessment
Baqir Lalani (2018)
10.1017/S0953756299001860
Variation in rDNA ITS sequences in Glomus mosseae and Gigaspora margarita spores from a permanent pasture
Z. Antoniolli (2000)
10.1201/9781420032468.ch12
The Effects of Pasture Management Practices
R. R. Schnabel (2001)
Title: Review of livestock impacts on no-till systems
James Fisher (2010)
10.20546/IJCMAS.2017.605.025
Assessment of Spatial Variability in Fertility Status and Nutrient Recommendation in Alanatha Cluster Villages, Kanakapura Taluk, Ramanagara District, Karnataka Using GIS Techniques
Ashik Sathish (2017)
10.1007/978-3-642-61094-3_29
The Waite Permanent Rotation Trial
P. Grace (1996)
SUBSURFACE TRANSPORT OF PHOSPHORUS THROUGH THE SOIL
Caleb Melenya (2013)
10.1007/978-3-319-34451-5_18
Climate Change: Impacts on Carbon Sequestration, Biodiversity and Agriculture
Zulfiqar Ahmad (2016)
10.1071/AR06139
Preliminary evaluation of diverse lucerne (Medicago sativa sspp.) germplasm to identify new material for livestock and cropping based farming systems in Australia
A. Humphries (2006)
10.1080/00103624.2011.614038
Gravel, Soil Organic Matter, and Texture in Fallowed Alfisols, Entisols and Ultisols: Implications for Root and Tuber Crops
Adesola Olutayo Olaleye (2011)
10.15406/APAR.2015.02.00048
Soil Quality Variation under Enset based Conservation Tillage and Cereal based Conventional Tillage System in Southern Highlands of Ethiopia
Haile Ketema (2015)
On-farm benefits from soil organic matter in England and Wales
F. Verheijen (2005)
10.1016/J.EJA.2015.11.024
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