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Journal articles on the topic 'Crops and soils South Australia'

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1

Cartwright, B., BA Zarcinas, and LR Spouncer. "Boron toxicity in South Australian barley crops." Australian Journal of Agricultural Research 37, no. 4 (1986): 351. http://dx.doi.org/10.1071/ar9860351.

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Boron toxicity was identified in barley crops grown on a range of soils at 16 widespread locations in South Australia, and also at one site in western Victoria. The soils on which boron toxicity occurred included red-brown earths (Calcic Natrixeralf), calcareous earths (Xerollic Calciorthid and Calcic Paleorthid), and calcareous sands ('Petrocalcixerollic' Xerochrept). At one site the soil was a grey clay (Palexerollic Chromoxerert). The properties of some examples of normal and high-boron soils which were sampled in close proximity are discussed. For individual high-boron soil profiles it was
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2

Humphries, A. W., X. G. Zhang, K. S. McDonald, R. A. Latta, and G. C. Auricht. "Persistence of diverse lucerne (Medicago sativa sspp.) germplasm under farmer management across a range of soil types in southern Australia." Australian Journal of Agricultural Research 59, no. 2 (2008): 139. http://dx.doi.org/10.1071/ar07037.

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The persistence of a diverse group of lucerne (Medicago sativa sspp.) germplasm was evaluated under farmer management across a range of acidic and neutral-alkaline soils at 8 sites in South and Western Australia. Dryland field trials were sown in parallel with commercial lucerne paddocks being grown in rotation with cereal crops, remaining unfenced and under management by the farmer for the life of the stand. The combined differences in soil type, grazing management, and low rainfall contributed to large differences in average lucerne persistence between sites in South Australia and Western Au
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3

Reuter, DJ, CB Dyson, DE Elliott, DC Lewis, and CL Rudd. "An appraisal of soil phosphorus testing data for crops and pastures in South Australia." Australian Journal of Experimental Agriculture 35, no. 7 (1995): 979. http://dx.doi.org/10.1071/ea9950979.

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Data from more than 580 field experiments conducted in South Australia over the past 30 years have been re-examined to estimate extractable soil phosphorus (P) levels related to 90% maximum yield (C90) for 7 crop species (wheat, barley, oilseed rape, sunflower, field peas, faba beans, potato) and 3 types of legume-based pasture (subterranean clover, strawberry clover, annual medics). Data from both single-year and longer term experiments were evaluated. The C90 value for each species was derived from the relationship between proportional yield responsiveness to applied P fertiliser rates (dete
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4

Turner, NC. "Crop production on duplex soils: an introduction." Australian Journal of Experimental Agriculture 32, no. 7 (1992): 797. http://dx.doi.org/10.1071/ea9920797.

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Duplex or texture-contrast soils occur over about 60% of the agricultural areas of south-west Western Australia. Annual crops of wheat, barley, oats, and lupins predominate on these soils, grown in rotation with annual pastures. The climate is characterised by cool, wet winters and hot, dry summers. Crop production is restricted to the winter and spring and is limited by waterlogging in the wet winter months and by water shortage during grain filling in spring. Research on crop production on duplex soils has been undertaken for the past 8 years by a collaborative team from the CSIRO Dryland Cr
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5

Sadras, Victor O., and John F. Angus. "Benchmarking water-use efficiency of rainfed wheat in dry environments." Australian Journal of Agricultural Research 57, no. 8 (2006): 847. http://dx.doi.org/10.1071/ar05359.

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Attainable water-use efficiency relates attainable yield, i.e. the best yield achieved through skilful use of available technology, and seasonal evapotranspiration (ET). For wheat crops in south-eastern Australia, there is a common, often large gap between actual and attainable water-use efficiency. To evaluate whether this gap is only an Australian problem or a general feature of dry environments, we compared water-use efficiency of rainfed wheat in south-eastern Australia, the North American Great Plains, China Loess Plateau, and the Mediterranean Basin. A dataset of published data was compi
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6

Bowmer, KH. "Atrazine persistence and toxicity in two irrigated soils of Australia." Soil Research 29, no. 2 (1991): 339. http://dx.doi.org/10.1071/sr9910339.

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The persistence of atrazine in two contrasting irrigated soils from the Riverine Plain of south-eastern Australia was measured in the laboratory at three constant temperatures. Particularly at lower temperatures atrazine was more persistent, by an order of magnitude, than reported for soils overseas; but in two successive field experiments, encompassing both surface and incorporated applications of atrazine in the heavier soil, residues measured after about 7 months were within the range expected from the literature. The measured residues were 2-6 times smaller than predicted using a simulatio
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7

Fillery, IR, and KJ McInnes. "Components of the fertiliser nitrogen balance for wheat production on duplex soils." Australian Journal of Experimental Agriculture 32, no. 7 (1992): 887. http://dx.doi.org/10.1071/ea9920887.

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In this paper, we review literature on the fate of fertiliser nitrogen (N) applied to duplex soils in wheat-growing regions of southern Australia, and discuss the contribution of specific N transformations to N loss. Duplex soils are characterised by the presence of soil material, within the rooting depth of crops, that possess hydraulic conductivities that are lower than those of overlying material. Denitrification and the transport of nitrate below rooting depth of crops are thought to be the chief causes of loss of fertiliser N and to contribute to poor grain yields. Ammonia volatilisation
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8

Xiong, X., F. Stagnitti, G. Allinson, N. Turoczy, P. Li, M. LeBlanc, M. A. Cann, et al. "Effects of clay amendment on adsorption and desorption of copper in water repellent soils." Soil Research 43, no. 3 (2005): 397. http://dx.doi.org/10.1071/sr04088.

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Copper is an important micronutrient and trace amounts are essential for crop growth. However, high concentrations of copper will produce toxic effects. Australia is increasingly developing production of crops in water repellent soils. Clay amendment, a common amelioration techniques used in Australia, has demonstrated agronomic benefits in increased crop or pasture production. The sorption and desorption of copper and the effect of clay treatment on copper behaviour in a water repellent soil collected from an experimental farm in South Australia is studied. We found that the water repellent s
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9

Hollaway, K. L., R. S. Kookana, D. M. Noy, J. G. Smith, and N. Wilhelm. "Crop damage caused by residual acetolactate synthase herbicides in the soils of south-eastern Australia." Australian Journal of Experimental Agriculture 46, no. 10 (2006): 1323. http://dx.doi.org/10.1071/ea05053.

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Grain growers in south-eastern Australia have reported unexpected crop failures with theoretically safe recropping periods for acetolactate synthase herbicides in alkaline soils. This experience has led to the concern that these herbicides may degrade very slowly in alkaline soils, and herbicide residues have at times been blamed for unexplained crop losses. To address this issue, we established 5 recropping trials across Victoria and South Australia with 5 acetolactate synthase herbicides (chlorsulfuron, triasulfuron, metsulfuron-methyl, imazethapyr, and flumetsulam). The herbicides were appl
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10

Unkovich, Murray, Therese McBeath, Rick Llewellyn, James Hall, Vadakattu VSR Gupta, and Lynne M. Macdonald. "Challenges and opportunities for grain farming on sandy soils of semi-arid south and south-eastern Australia." Soil Research 58, no. 4 (2020): 323. http://dx.doi.org/10.1071/sr19161.

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Sandy soils make up a substantial fraction of cropping land in low rainfall (<450 mm p.a.) south and south-eastern Australia. In this paper we review the possible soil constraints to increased production on these soils in this region. Many of these soils have a very low (<3%) clay content and suffer from severe water repellency, making crop establishment and weed control problematic. Crops which do emerge are faced with uneven soil wetting and poor access to nutrients, with crop nutrition constraints exacerbated by low fertility (soil organic matter < 1%) and low cation ex
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11

Adcock, D., A. M. McNeill, G. K. McDonald, and R. D. Armstrong. "Subsoil constraints to crop production on neutral and alkaline soils in south-eastern Australia: a review of current knowledge and management strategies." Australian Journal of Experimental Agriculture 47, no. 11 (2007): 1245. http://dx.doi.org/10.1071/ea06250.

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Crop yield variability and productivity below potential yield on neutral and alkaline soils in the semiarid Mediterranean-type environments of south-eastern Australia have been attributed, in part, to variable rooting depth and incomplete soil water extraction caused by physical and chemical characteristics of soil horizons below the surface. In this review these characteristics are referred to as subsoil constraints. This document reviews current information concerning subsoil constraints typical of neutral and alkaline soils in south-eastern Australia, principally salinity, sodicity, dense s
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12

Anderson, WK, RJ French, and M. Seymour. "Yield responses of wheat and other crops to agronomic practices on duplex soils compared with other soils in Western Australia." Australian Journal of Experimental Agriculture 32, no. 7 (1992): 963. http://dx.doi.org/10.1071/ea9920963.

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A survey of experimental results relating crop management to grain yield was conducted for wheat and other crops on duplex and non-duplex soils in the wheatbelt of Western Australia. Increases in grain yield of wheat due to improved agronomic practices on duplex soils were almost as great as on other soils. Early sowing improved yield more on duplex soils than on other soils, but the response to applied nitrogen was more variable, possibly related to the reduced efficiency of uptake of applied nitrogen. The yield advantage for a semi-dwarf cultivar (Aroona) over a tall cultivar (Garnenya) was
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13

Lamb, D. W. "The use of qualitative airborne multispectral imaging for managing agricultural crops - a case study in south-eastern Australia." Australian Journal of Experimental Agriculture 40, no. 5 (2000): 725. http://dx.doi.org/10.1071/ea99086.

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Charles Sturt University has operated an airborne multispectral imaging system as a research support and management tool over south-eastern Australian crops since 1994. Our experiences have demonstrated the utility, timeliness and cost-effectiveness of qualitative multispectral imagery for monitoring and managing spatial variability in a range of agricultural crops, yet to date the technology remains underutilised in Australia. Images showing variations in the texture of soils in paddocks are a useful indicator of the location of different soil zones for soil sampling, and can assist in siting
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14

Bolan, NS, RE White, and MJ Hedley. "A review of the use of phosphate rocks as fertilizers for direct application in Australia and New Zealand." Australian Journal of Experimental Agriculture 30, no. 2 (1990): 297. http://dx.doi.org/10.1071/ea9900297.

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Field trials in New Zealand have shown that reactive phosphate rocks (RPRs) can be as effective as soluble P fertilisers, per kg of P applied, on permanent pastures that have a soil pH<6.0 (in water) and a mean annual rainfall >800 mm. Whereas RPRs such as North Carolina, Sechura, Gafsa and Chatham Rise have been evaluated on permanent pastures in New Zealand, most Australian field trials have examined unreactive PRs such as Christmas Island A and C grade, Nauru and Duchess, using annual plant species. Only in recent experiments has an RPR, North Carolina, been examined. Except on the hi
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15

Gupta, V. V. S. R., S. J. Kroker, M. Hicks, C. W. Davoren, K. Descheemaeker, and R. Llewellyn. "Nitrogen cycling in summer active perennial grass systems in South Australia: non-symbiotic nitrogen fixation." Crop and Pasture Science 65, no. 10 (2014): 1044. http://dx.doi.org/10.1071/cp14109.

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Non-symbiotic nitrogen (N2) fixation by diazotrophic bacteria is a potential source for biological N inputs in non-leguminous crops and pastures. Perennial grasses generally add larger quantities of above- and belowground plant residues to soil, and so can support higher levels of soil biological activity than annual crops. In this study, the hypothesis is tested that summer-active perennial grasses can provide suitable microsites with the required carbon supply for N2 fixation by diazotrophs, in particular during summer, through their rhizosphere contribution. In a field experiment on a Calca
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16

Wong, M. T. F., R. W. Bell, and K. Frost. "Mapping boron deficiency risk in soils of south-west Western Australia using a weight of evidence model." Soil Research 43, no. 7 (2005): 811. http://dx.doi.org/10.1071/sr05022.

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The aim of this work was to develop a risk map for boron (B) deficiency in the grain cropping regions of Western Australia (WA), whilst avoiding the high costs associated with direct B measurements for an area as vast as the south-west of WA. The study firstly determined relationships between 0.01 m CaCl2-extractable soil B levels and readily available data on soil properties and parent materials for Reference Soils of south-west Australia and secondly assembled direct evidence of B deficiency risk from surveys of farmers’ crops and soils and from glasshouse experiments. Across 73 Reference So
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17

Gardner, WK, RG Fawcett, GR Steed, JE Pratley, DM Whitfield, Hvan Rees, and Rees H. Van. "Crop production on duplex soils in south-eastern Australia." Australian Journal of Experimental Agriculture 32, no. 7 (1992): 915. http://dx.doi.org/10.1071/ea9920915.

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The environment, duplex soil types and trends in crop production in South Australia, southern New South Wales, north-eastern and north-central Victoria, the southern Wimmera and the Victorian Western District are reviewed. In the latter 2 regions, pastoral industries dominate and crop production is curtailed by regular and severe soil waterlogging, except for limited areas of lower rainfall. Subsurface drainage can eliminate waterlogging, but is feasible only for the Western District where subsoils are sufficiently stable. The other regions all have a long history of soil degradation due to cr
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18

Nevard, Timothy D., Donald C. Franklin, Ian Leiper, George Archibald, and Stephen T. Garnett. "Agriculture, brolgas and Australian sarus cranes on the Atherton Tablelands, Australia." Pacific Conservation Biology 25, no. 4 (2019): 377. http://dx.doi.org/10.1071/pc18081.

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Flocks of brolgas (Antigone rubicunda) and Australian sarus cranes (A. antigone gillae) congregate in cropping areas of the Atherton Tablelands in north Queensland, Australia, during the non-breeding months of May to December each year and sometimes come into conflict with farmers. The central part of the region has been declared a Key Biodiversity Area, largely because it is the only well known non-breeding area for the Australian sarus crane. We investigated spatial and temporal patterns of use of this landscape for foraging by the two species to determine how they might be affected by chang
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19

Cox, JW, DJ Mcfarlane, and RW Skaggs. "Field-evaluation of DRAINMOD for predicting waterlogging intensity and drain performance in South-Western Australia." Soil Research 32, no. 4 (1994): 653. http://dx.doi.org/10.1071/sr9940653.

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Waterlogging is common on sloping duplex soils in south-western Australia and causes damage to non-irrigated cereal crops and pastures. The factors which affect the performance of surface seepage interceptor drains installed to reduce this waterlogging are complex because the soils are very variable and have preferred pathways for groundwater flow. We compared DRAINMOD's predictions with field measured waterlogging intensity and drain flow over 3 years near Mt Barker and Narrogin in Western Australia. DRAINMOD failed to accurately predict waterlogging intensities and drain flows because water
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20

Davidson, J. A., M. Krysinska-Kaczmarek, C. J. Wilmshurst, A. McKay, Herdina, and E. S. Scott. "Distribution and Survival of Ascochyta Blight Pathogens in Field-Pea-Cropping Soils of Australia." Plant Disease 95, no. 10 (October 2011): 1217–23. http://dx.doi.org/10.1094/pdis-01-11-0077.

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Phoma koolunga, Didymella pinodes, and P. medicaginis var. pinodella were detected in DNA extracted from soil following field pea crops across four states in the southeastern and western regions of Australia. P. koolunga was commonly detected in soil from South Australia but rarely in other states whereas D. pinodes plus P. medicaginis var. pinodella were widespread in all regions tested. The quantity of DNA of these pathogens detected in soils prior to growing field pea was positively correlated with ascochyta blight lesions on field pea subsequently grown in infested soil in a pot bioassay a
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21

Hollaway, K. L., R. S. Kookana, D. M. Noy, J. G. Smith, and N. Wilhelm. "Persistence and leaching of sulfonylurea herbicides over a 4-year period in the highly alkaline soils of south-eastern Australia." Australian Journal of Experimental Agriculture 46, no. 8 (2006): 1069. http://dx.doi.org/10.1071/ea04221.

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The sulfonylurea herbicides are commonly used in the cereal belt of south-eastern Australia and there is concern that their persistence in alkaline soils is long enough to damage subsequent rotational crops such as legumes and oilseeds. In this study, we investigated leaching and persistence of 3 commonly used herbicides (chlorsulfuron, triasulfuron and metsulfuron-methyl) in alkaline soils of south-eastern Australia (pH range 7.4–8.6) for at least 4 years after treatment. In general, chlorsulfuron was predicted to persist for 3–5 years [time to degrade to 1% (DT99) of 33–63 months after treat
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22

Li, G. D., K. R. Helyar, M. K. Conyers, B. R. Cullis, P. D. Cregan, R. P. Fisher, L. J. C. Castleman, G. J. Poile, C. M. Evans, and B. Braysher. "Crop responses to lime in long-term pasture-crop rotations in a high rainfall area in south-eastern Australia." Australian Journal of Agricultural Research 52, no. 3 (2001): 329. http://dx.doi.org/10.1071/ar00087.

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A long-term trial, known as ‘managing acid soils through efficient rotations’ (MASTER), commenced in 1992 to develop and demonstrate a cropping system that is economically viable on the highly acid soils of the traditional permanent pasture region in south-eastern Australia, so that their fertility is sustained or improved. There were 2 permanent pasture systems and 2 pasture–crop rotations, each with and without lime. This paper reports the effect of lime on crop production over the first cycle (6 years). On annual pasture–crop rotations, lime significantly increased the dry matter production
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23

Bolland, M. D. A., D. G. Allen, and K. S. Walton. "Soil testing for phosphorus: comparing the Mehlich 3 and Colwell procedures for soils of south-western Australia." Soil Research 41, no. 6 (2003): 1185. http://dx.doi.org/10.1071/sr02153.

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Soil samples were collected from 14 long-term field experiments in south-western Australia to which several amounts of superphosphate or phosphate rock had been applied in a previous year. The samples were analysed for phosphorus (P) by the Colwell sodium bicarbonate procedure, presently used in Western Australia, and the Mehlich 3 procedure, being assessed as a new multi-element test for the region. For the Mehlich procedure, the concentration of total and inorganic P in the extract solution was measured. The soil test values were related to yields of crops and pasture measured later on in th
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24

Hollaway, K. L., R. S. Kookana, D. M. Noy, J. G. Smith, and N. Wilhelm. "Persistence and leaching of imazethapyr and flumetsulam herbicides over a 4-year period in the highly alkaline soils of south-eastern Australia." Australian Journal of Experimental Agriculture 46, no. 5 (2006): 669. http://dx.doi.org/10.1071/ea04223.

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Imazethapyr and flumetsulam are acetolactate synthase herbicides commonly used in the cereal belt of south-eastern Australia. As their labels recommend recropping periods of up to 34 months for imazethapyr and 24 months for flumetsulam, there are concerns that in some cases their persistence may damage subsequent rotation crops. This is the first major study in south-eastern Australia to investigate their leaching and persistence for up to 4 years after treatment. Imazethapyr persisted for more than 3 years at 2 sites and flumetsulam for more than 2 years at 3 sites. For imazethapyr, soil type
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25

Bailey, P., J.-L. Sagliocco, J. Vitou, and D. Cooke. "Prospects for biological control of cutleaf mignonette, Reseda lutea (Resedaceae), by Baris picicornis and Bruchela spp. in Australia." Australian Journal of Experimental Agriculture 42, no. 2 (2002): 185. http://dx.doi.org/10.1071/ea01059.

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In South Australia, Reseda lutea is abundant, invading pastures and crops on calcareous soils while in its native Mediterranean range it is uncommon in occurrence and is not reported as a weed of cultivated crops. Its invasive behaviour in South Australia may be attributed to vegetative growth of root fragments spread by cultivation, while propagation by seed is of minor importance. Surveys in Spain, Portugal, Morocco, France, Turkey and Israel indicated that agronomic differences, particularly depth of cultivation and seeding rates of cereals may explain why it is not a crop weed in these cou
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26

Li, Guangdi D., Rajinder P. Singh, John P. Brennan, and Keith R. Helyar. "A financial analysis of lime application in a long-term agronomic experiment on the south-western slopes of New South Wales." Crop and Pasture Science 61, no. 1 (2010): 12. http://dx.doi.org/10.1071/cp09103.

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Management of Acid Soils Through Efficient Rotations (MASTER) is a long-term agronomic experiment commenced in 1992. There were 3 fundamental treatment contrasts in this experiment: (a) annual systems v. perennial systems; (b) limed v. unlimed treatments; and (c) permanent pastures v. pasture–crop rotations. The soil was acidic to depth with pH (in CaCl2) below 4.5 and exchangeable Al above 40% at 0.10–0.20 m when the experiment started. Lime was applied every 6 years to maintain soil pHCa at 5.5 in the 0–0.10 m soil depth. A financial analysis was undertaken to estimate potential benefits and
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27

Nichols, P. G. H., M. J. Barbetti, G. A. Sandral, B. S. Dear, C. T. de Koning, D. L. Lloyd, P. M. Evans, A. D. Craig, P. Si, and M. P. You. "Coolamon subterranean clover (Trifolium subterraneum L. var. subterraneum)." Australian Journal of Experimental Agriculture 47, no. 2 (2007): 223. http://dx.doi.org/10.1071/ea05282.

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Coolamon is a mid-season to late-season flowering F4-derived crossbred subterranean clover of var. subterraneum, developed by the collaborating organisations of the National Annual Pasture Legume Improvement Program. It is a replacement for Junee and has been selected for release on the basis of its greater herbage production and persistence, and its resistance to both known races of clover scorch. Coolamon is recommended for sowing in Western Australia, New South Wales, Victoria, South Australia and Queensland. It is best suited to well-drained, moderately acidic soils in areas with a growing
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28

Chan, K. Y., C. G. Dorahy, S. Tyler, A. T. Wells, P. P. Milham, and I. Barchia. "Phosphorus accumulation and other changes in soil properties as a consequence of vegetable production, Sydney region, Australia." Soil Research 45, no. 2 (2007): 139. http://dx.doi.org/10.1071/sr06087.

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A survey of 34 farms covering the major soil types used for growing vegetables within the greater Sydney metropolitan region (New South Wales, Australia) was undertaken to determine the effect of vegetable production on soil chemical and physical properties. Comparison of farmed ‘vegetable’ v. unfarmed ‘reference’ sites revealed that the soils used for vegetable production had extremely high concentrations of total P, Colwell-P, and CaCl2-extractable P (mean 1205, 224, and 4.3 mg/kg in the 0–0.30 m layer, respectively). In the 0–0.30 m soil layer, mean bicarbonate-extractable P (Colwell-P) con
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29

Angus, J. F., A. F. van Herwaarden, D. P. Heenan, R. A. Fischer, and G. N. Howe. "The source of mineral nitrogen for cereals in south-eastern Australia." Australian Journal of Agricultural Research 49, no. 3 (1998): 511. http://dx.doi.org/10.1071/a97125.

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The relative importance of soil mineral nitrogen (N) available at the time of sowing ormineralised during the growing season was investigated for 6 crops of dryland wheat. The soil mineral N in the root-zone was sampled at sowing and maturity and the rate of net mineralisation in the top 10 cm was estimated by sequential sampling throughout the growing season, using an in situ method. Mineralisation during crop growth was modelled in relation to total soil N, ambient temperature, andsoil water content. Mineral N accumulated before sowing varied by a factor of 3 between the sites (from 67 to 19
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French, Robert J., and Bevan J. Buirchell. "Lupin: the largest grain legume crop in Western Australia, its adaptation and improvement through plant breeding." Australian Journal of Agricultural Research 56, no. 11 (2005): 1169. http://dx.doi.org/10.1071/ar05088.

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Between 500 000 and 1 000 000 tonnes of narrow-leafed lupins (Lupinus angustifolius L.) are produced in Western Australia each year. It has become the predominant grain legume in Western Australian agriculture because it is peculiarly well adapted to acid sandy soils and the Mediterranean climate of south-western Australia. It has a deep root system and root growth is not reduced in mildly acid soils, which allows it to fully exploit the water and nutrients in the deep acid sandplain soils that cover much of the agricultural areas of Western Australia. It copes with seasonal drought through dr
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31

Brennan, R. F., M. D. A. Bolland, and J. W. Bowden. "Potassium deficiency, and molybdenum deficiency and aluminium toxicity due to soil acidification, have become problems for cropping sandy soils in south-western Australia." Australian Journal of Experimental Agriculture 44, no. 10 (2004): 1031. http://dx.doi.org/10.1071/ea03138.

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Nutrient omission experiments determined the cause of ‘waves’ of good and bad growth in wheat and barley crops following burning of swathed canola crop residues on acidified sandy soils in south-western Australia. Potassium deficiency, and molybdenum deficiency and aluminium toxicity induced by soil acidification, were identified as major problems. Burning canola swaths increased bicarbonate-extractable soil potassium by 20–100 mg/kg, and as measured in 0.01 mol/L CaCl2, increased soil pH by 0.3–0.8 of a pH unit and decreased aluminium extracted from soil by 1–6 mg/kg. These changes in soil ch
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Hocking, P. J., and M. J. McLaughlin. "Genotypic variation in cadmium accumulation by seed of linseed, and comparison with seeds of some other crop species." Australian Journal of Agricultural Research 51, no. 4 (2000): 427. http://dx.doi.org/10.1071/ar99124.

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The accumulation of cadmium (Cd) in plants is a health issue because a range of grain and vegetable crops can accumulate levels of Cd that are in excess of limits set by the World Health Organization and individual countries. Many Australian agricultural soils used to produce confectionery linseed have a history of intensive use of Cd-contaminated phosphatic fertilisers and this, combined with soil properties such as high chloride salinity, can result in enhanced availability of Cd to crops. We investigated genotypic variation in Cd accumulation in seed of 17 linseed and Linola (termed linseed
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33

Nuttall, J. G., and R. D. Armstrong. "Impact of subsoil physicochemical constraints on crops grown in the Wimmera and Mallee is reduced during dry seasonal conditions." Soil Research 48, no. 2 (2010): 125. http://dx.doi.org/10.1071/sr09075.

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Subsoil physicochemical constraints can limit crop production on alkaline soils of south-eastern Australia. Fifteen farmer paddocks sown to a range of crops including canola, lentil, wheat, and barley in the Wimmera and Mallee of Victoria and the mid-north and Eyre Peninsula of South Australia were monitored from 2003 to 2006 to define the relationship between key abiotic/edaphic factors and crop growth. The soils were a combination of Calcarosol and Vertosol profiles, most of which had saline and sodic subsoils. There were significant correlations between ECe and Cl– (r = 0.90), ESP and B (r
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34

McBeath, T. M., M. J. McLaughlin, R. D. Armstrong, M. Bell, M. D. A. Bolland, M. K. Conyers, R. E. Holloway, and S. D. Mason. "Predicting the response of wheat (Triticum aestivum L.) to liquid and granular phosphorus fertilisers in Australian soils." Soil Research 45, no. 6 (2007): 448. http://dx.doi.org/10.1071/sr07044.

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Liquid forms of phosphorus (P) have been shown to be more effective than granular P for promoting cereal growth in alkaline soils with high levels of free calcium carbonate on Eyre Peninsula, South Australia. However, the advantage of liquid over granular P forms of fertiliser has not been fully investigated across the wide range of soils used for grain production in Australia. A glasshouse pot experiment tested if liquid P fertilisers were more effective for growing spring wheat (Triticum aestivum L.) than granular P (monoammonium phosphate) in 28 soils from all over Australia with soil pH (H
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35

Huang, Xiaodong, Peter Grace, Keith Weier, and Kerrie Mengersen. "Nitrous oxide emissions from subtropical horticultural soils: a time series analysis." Soil Research 50, no. 7 (2012): 596. http://dx.doi.org/10.1071/sr11100.

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Time series regression models were used to examine the influence of environmental factors (soil water content and soil temperature) on the emissions of nitrous oxide (N2O) from subtropical soils, by taking into account temporal lagged environmental factors, autoregressive processes, and seasonality for three horticultural crops in a subtropical region of Australia. Fluxes of N2O, soil water content, and soil temperature were determined simultaneously on a weekly basis over a 12-month period in South East Queensland. Annual N2O emissions for soils under mango, pineapple, and custard apple were
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36

Angus, J. F., R. R. Gault, M. B. Peoples, M. Stapper, and A. F. van Herwaarden. "Soil water extraction by dryland crops, annual pastures, and lucerne in south-eastern Australia." Australian Journal of Agricultural Research 52, no. 2 (2001): 183. http://dx.doi.org/10.1071/ar00103.

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The extraction of soil water by dryland crops and pastures in south-eastern Australia was examined in 3 studies. The first was a review of 13 published measurements of soil water-use under wheat at several locations in southern New South Wales. Of these, 8 showed significantly more water extracted by crops managed with increased nitrogen supply or growing after a break crop. The mean additional soil water extraction in response to break crops was 31 mm and to additional N was 11 mm. The second study used the SIMTAG model to simulate growth and water-use by wheat in relation to crop management
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37

Ward, P. R., R. A. Lawes, and D. Ferris. "Soil-water dynamics in a pasture-cropping system." Crop and Pasture Science 65, no. 10 (2014): 1016. http://dx.doi.org/10.1071/cp14046.

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Pasture cropping is a farming system in which annual crops are sown into established perennial pastures. It may provide environmental benefits such as increased groundcover and reduced deep drainage, while allowing traditional crop production in the Mediterranean-style climate of south-western Australia. In this research, we investigated deep drainage and the temporal patterns of water use by a subtropical perennial grass, annual crops, and a pasture-cropping system over a 4-year period. Both the pasture and pasture-cropped treatments reduced deep drainage significantly, by ~50 mm compared wit
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38

Bell, M. J., P. W. Moody, G. R. Harch, B. Compton, and P. S. Want. "Fate of potassium fertilisers applied to clay soils under rainfed grain cropping in south-east Queensland, Australia." Soil Research 47, no. 1 (2009): 60. http://dx.doi.org/10.1071/sr08088.

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Negative potassium (K) balances in all broadacre grain cropping systems in northern Australia are resulting in a decline in the plant-available reserves of K and necessitating a closer examination of strategies to detect and respond to developing K deficiency in clay soils. Grain growers on the Red Ferrosol soils have increasingly encountered K deficiency over the last 10 years due to lower available K reserves in these soils in their native condition. However, the problem is now increasingly evident on the medium-heavy clay soils (Black and Grey Vertosols) and is made more complicated by the
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39

Xu, ZH, JN Ladd, and DE Elliott. "Soil nitrogen availability in the cereal zone of South Australia .1. Soil organic carbon, total nitrogen, and nitrogen mineralisation rates." Soil Research 34, no. 6 (1996): 937. http://dx.doi.org/10.1071/sr9960937.

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Assessments of soil nitrogen (N) availability were undertaken using soils sampled at 0-10 and 10-20 cm depths from 123 experimental sites where the responses of cereal crops to N fertilisers were tested, throughout the cereal zone of South Australia. Rates of N mineralisation and percentage N mineralisation, as determined by a laboratory aerobic incubation method, were related to soil properties. Mineralisable N (N mineralised during a Li-week incubation) of 0-10 cm soil varied from 14 to 121 kg N/ha with a median of 50 kg N/ha, and that of 10-20 cm soil, from 5 to 42 kg N/ha (median 19 kg N/h
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40

Norton, R. M., and N. G. Wachsmann. "Nitrogen use and crop type affect the water use of annual crops in south-eastern Australia." Australian Journal of Agricultural Research 57, no. 3 (2006): 257. http://dx.doi.org/10.1071/ar05056.

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The effect of management and crop selection on water use and profile drying was investigated using 2 series of experiments conducted in the Victorian Wimmera. The effect of applied nitrogen on growth and water use of canola was assessed from 3 field experiments on a Vertosol soil. Across these sites, 140 kg N/ha increased crop water use by a mean of 30 mm, and the biological response averaged 3.68 t/ha of shoot dry matter and seed yield increased by 73% from 1.46 to 2.52 t/ha. The additional nitrogen enabled roots to go deeper into the soil and also to extract water to higher tensions, but the
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41

Ryan, M. H., R. M. Norton, J. A. Kirkegaard, K. M. McCormick, S. E. Knights, and J. F. Angus. "Increasing mycorrhizal colonisation does not improve growth and nutrition of wheat on Vertosols in south-eastern Australia." Australian Journal of Agricultural Research 53, no. 10 (2002): 1173. http://dx.doi.org/10.1071/ar02005.

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Most crops host arbuscular mycorrhizal fungi (AMF). Canola and other brassicas are some of the few exceptions. This study examined AM fungal colonisation, uptake of phosphorus (P) and zinc (Zn), growth, and yield of wheat following brassicas and crops that host AMF in 5 crop-sequence experiments in southern New South Wales and Victoria. All experiments were on alkaline Vertosols, similar to soils in the northern wheatbelt on which low AM fungal colonisation of wheat following canola, or long-fallow, has been reported to induce poor crop growth. Soils with a broad range of extractable P concent
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42

Evans, J., NA Fettell, DR Coventry, GE O'Connor, DN Walsgott, J. Mahoney, and EL Armstrong. "Wheat response after temperate crop legumes in south-eastern Australia." Australian Journal of Agricultural Research 42, no. 1 (1991): 31. http://dx.doi.org/10.1071/ar9910031.

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At 15 sites in the cereal belt of New South Wales and Victoria, wheat after lupin or pea produced more biomass and had a greater nitrogen (N) content than wheat after wheat or barley; on average these crops assimilated 36 kg N/ha more. The improved wheat yield after lupin averaged 0 . 9 t/ha and after pea 0.7 t/ha, increases of 44 and 32% respectively. The responses were variable with site, year and legume. Soil available N was increased by both lupin and pea and the levels of surface inorganic N measured at the maturity of first year crops was often related to N in wheat grown in the followin
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43

Evans, J., A. M. McNeill, M. J. Unkovich, N. A. Fettell, and D. P. Heenan. "Net nitrogen balances for cool-season grain legume crops and contributions to wheat nitrogen uptake: a review." Australian Journal of Experimental Agriculture 41, no. 3 (2001): 347. http://dx.doi.org/10.1071/ea00036.

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The removal of nitrogen (N) in grain cereal and canola crops in Australia exceeds 0.3 million t N/year and is increasing with improvements in average crop yields. Although N fertiliser applications to cereals are also rising, N2-fixing legumes still play a pivotal role through inputs of biologically fixed N in crop and pasture systems. This review collates Australian data on the effects of grain legume N2 fixation, the net N balance of legume cropping, summarises trends in the soil N balance in grain legume–cereal rotations, and evaluates the direct contribution of grain legume stubble and roo
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44

McDonald, G. K., J. D. Taylor, A. Verbyla, and H. Kuchel. "Assessing the importance of subsoil constraints to yield of wheat and its implications for yield improvement." Crop and Pasture Science 63, no. 12 (2012): 1043. http://dx.doi.org/10.1071/cp12244.

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Many of the soils in the Australian cereal belt have subsoils with chemical and physical properties that restrict root growth, which limits water use and yield. On alkaline sodic soils salinity, high pH, high available boron (B), deficiencies of zinc (Zn) and manganese (Mn) and high soil strength occur commonly and aluminium (Al) toxicity restricts root growth on acid soils. While the effects of individual subsoil constraints have been studied there is some debate about the relative importance to yield of the different soil stresses across the region. To address this issue yield variation amon
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45

Bakker, D. M., G. J. Hamilton, D. J. Houlbrooke, C. Spann, and A. Van Burgel. "Productivity of crops grown on raised beds on duplex soils prone to waterlogging in Western Australia." Australian Journal of Experimental Agriculture 47, no. 11 (2007): 1368. http://dx.doi.org/10.1071/ea06273.

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Waterlogging of duplex soils in Western Australia has long been recognised as a major constraint to the production of agricultural crops and pastures. The work described in this paper examines the application of raised beds to arable land that is frequently waterlogged for the production of crops such as wheat, barley, field peas, lupins and canola. Raised beds are 138 cm wide, seed beds separated by 45 cm wide furrows 183 cm apart. These beds were made with a commercial bed former. Seven sites were selected across the south-eastern wheat belt of Western Australia with the experimental areas v
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46

Officer, S. J., R. D. Armstrong, and R. M. Norton. "Plant availability of phosphorus from fluid fertiliser is maintained under soil moisture deficit in non-calcareous soils of south-eastern Australia." Soil Research 47, no. 1 (2009): 103. http://dx.doi.org/10.1071/sr08090.

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Low soil moisture and phosphorus (P) deficiencies restrict grain production in south-eastern Australia. The effect of the soil moisture regime on the plant availability of P from fluid mono-ammonium phosphate (MAP) fertiliser was examined during vegetative growth of wheat and canola in P-responsive soils from the Wimmera, Mallee, and high rainfall zone (Glenelg) regions of Victoria. Three plant growth experiments were performed. In Experiment 1, wheat growth and P uptake increased synergistically as soil moisture increased above permanent wilting point (PWP) and as P rate increased. In Experim
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47

Pepper, Claire-Marie. "Understanding Sclerotinia Risks Associated with Growing Peanuts in the South Burnett Area." Proceedings 36, no. 1 (April 6, 2020): 150. http://dx.doi.org/10.3390/proceedings2019036150.

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Sclerotinia Blight, caused by ascomycete fungal pathogen S. minor (Jagger), is a serious soil-borne disease of peanut crops within the South Burnett area in Queensland, Australia. The pathogen can infect root, stem and foliage tissues, forming characteristic fluffy white mycelial growth on stems leading to tissue wilting and necrosis. The disease can cause significant yield reductions and, in some cases, complete crop losses in peanut production. Outbreaks occur in cooler weather (under 18 °C) with high humidity levels (above 95%) as the higher humidity levels promote germination of sclerotia
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48

Xu, R. K., D. R. Coventry, A. Farhoodi, and J. E. Schultz. "Soil acidification as influenced by crop rotations, stubble management, and application of nitrogenous fertiliser, Tarlee, South Australia." Soil Research 40, no. 3 (2002): 483. http://dx.doi.org/10.1071/sr00104.

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Soil acidification, as influenced by N fertiliser, stubble management, and crop rotations, was investigated using soil samples from a long-term rotation trial at Tarlee, South Australia. With the effects of combination of treatment inputs (wheat–lupin, stubble retention and N-fertiliser application), the pHCa (0–10 cm depth) declined from the starting value of 6.12 to 4.50 after a 14-year period. All of the treatments caused the soil pH to decrease. The mean acidification rates for the period 1978–1992 varied from 0.5 to 2.22 kmol H+/ha.year for different treatments. Although the rainfall at T
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49

Pembleton, K. G., R. P. Rawnsley, J. L. Jacobs, F. J. Mickan, G. N. O'Brien, B. R. Cullen, and T. Ramilan. "Evaluating the accuracy of the Agricultural Production Systems Simulator (APSIM) simulating growth, development, and herbage nutritive characteristics of forage crops grown in the south-eastern dairy regions of Australia." Crop and Pasture Science 64, no. 2 (2013): 147. http://dx.doi.org/10.1071/cp12372.

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Pasture-based dairy farms are a complex system involving interactions between soils, pastures, forage crops, and livestock as well as the economic and social aspects of the business. Consequently, biophysical and farm systems models are becoming important tools to study pasture-based dairy systems. However, there is currently a paucity of modelling tools available for the simulation of one key component of the system—forage crops. This study evaluated the accuracy of the Agricultural Production Systems Simulator (APSIM) in simulating dry matter (DM) yield, phenology, and herbage nutritive char
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50

Siddique, KHM, and SP Loss. "Growth and seed yield of vetches (Vicia spp.) in south-western Australia." Australian Journal of Experimental Agriculture 36, no. 5 (1996): 587. http://dx.doi.org/10.1071/ea9960587.

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The growth and seed yield of 5 vetch (Vicia) cultivars representing Vicia sativa, V. benghalensis and V. villosa were compared at 8 sites over 2 years in south-western Australia. The vetches showed considerable potential as grain and forage legume crops in the low to medium rainfall areas of the Western Australian cereal belt. Cultivars of V. sativa showed the most potential in terms of dry matter and seed yield, and on average across sites and seasons both Languedoc and Blanchefleur produced over 2.5 t/ha of dry matter at flowering: Machine-harvested seed yields were over 1.6 t/ha. Cultivars
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