Abstract
Annual‐based pasture and/ annual crops are now commonly the basis of farming practices in higher rainfall regions of southern Australia. For environmental reasons, farming systems used in higher rainfall regions should ideally target use of more perennials in the landscape without impacting farm productivity or profitability. Intercropping may provide the opportunity to achieve this, where the pasture component is a perennial species. The perennial pasture species lucerne (Aurora Medicago sativa L.) and chicory (Puna Cichorium intybus L.) were established and maintained for three seasons with annually sown crop species (Whistler wheat [ Triticum aestivum L], Wonga lupin [ Lupinus angustifolius L] and Sapphire canola [ Brassica napus L.]) in a double skip row arrangement. These intercrops were compared for production and productivity with individual crops and pastures grown as monoculture stands. Grain crop yields were reduced when grown in intercrop with lucerne and chicory. Yield reductions ranged from 0 to 46% for wheat, 45 to 74% for lupin, and 8 to 83% for canola. Pasture dry matter was also reduced when intercropped, with reductions ranging from 0 to 78% for lucerne and 19 to 78% for chicory. Despite reductions in crop and pasture production, the land equivalent ratio (LER) ranged from 0.42 to 1.78, with most intercrop combinations overyielding. Chicory was well adapted as an intercrop species, with chicory intercrops overyielding more frequently than lucerne intercrops. In addition, the overyielding of lupin and canola intercrops demonstrates the potential to expand intercropping to include break crops, creating a more flexible system suited to southeastern Australia.
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Claims 9
Claim · model-written summary
Wheat grain yield was reduced in intercrop by 0 to 46%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- intercrope1
- Outcome
- Yielde0
- Direction
- reductionse0
- Value
- 0 to 46%e0
- Comparator
- monoculture standse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield reductions ranged from 0 to 46% for wheat, 45 to 74% for lupin, and 8 to 83% for canola.”
e1“These intercrops were compared for production and productivity with individual crops and pastures grown as monoculture stands.”
Claim · model-written summary
Lupin grain yield was reduced in intercrop by 45 to 74%.
- Treatment
- intercrope1
- Outcome
- Yielde0
- Direction
- reductionse0
- Value
- 45 to 74%e0
- Comparator
- monoculture standse1
LupinusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield reductions ranged from 0 to 46% for wheat, 45 to 74% for lupin, and 8 to 83% for canola.”
e1“These intercrops were compared for production and productivity with individual crops and pastures grown as monoculture stands.”
Claim · model-written summary
Canola grain yield was reduced in intercrop by 8 to 83%.
- Taxon
- canola
.jpg?width=60)
Brassica napus var. napuse0 - Treatment
- intercrope1
- Outcome
- Yielde0
- Direction
- reductionse0
- Value
- 8 to 83%e0
- Comparator
- monoculture standse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Yield reductions ranged from 0 to 46% for wheat, 45 to 74% for lupin, and 8 to 83% for canola.”
e1“These intercrops were compared for production and productivity with individual crops and pastures grown as monoculture stands.”
Claim · model-written summary
Lucerne pasture dry matter was reduced by 0 to 78% in intercrop.
- Taxon
- lucerne
Medicago sativae0 - Treatment
- intercroppede0
- Outcome
- Pasture dry mattere0
- Direction
- reducede0
- Value
- 0 to 78%e0
- Comparator
- monoculture standse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pasture dry matter was also reduced when intercropped, with reductions ranging from 0 to 78% for lucerne and 19 to 78% for chicory.”
e1“These intercrops were compared for production and productivity with individual crops and pastures grown as monoculture stands.”
Claim · model-written summary
Chicory pasture dry matter was reduced by 19 to 78% in intercrop.
- Taxon
- chicory
Cichorium intybuse0 - Treatment
- intercroppede0
- Outcome
- Pasture dry mattere0
- Direction
- reducede0
- Value
- 19 to 78%e0
- Comparator
- monoculture standse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pasture dry matter was also reduced when intercropped, with reductions ranging from 0 to 78% for lucerne and 19 to 78% for chicory.”
e1“These intercrops were compared for production and productivity with individual crops and pastures grown as monoculture stands.”
Claim · model-written summary
Intercrop land equivalent ratios ranged from 0.42 to 1.78, with most combinations overyielding.
Verbatim
e0“Despite reductions in crop and pasture production, the land equivalent ratio (LER) ranged from 0.42 to 1.78, with most intercrop combinations overyielding.”
t0“Crop–Perennial Pasture Intercropping”
Claim · model-written summary
Chicory intercrops overyielded more frequently than lucerne intercrops.
- Taxon
- ChicoryCichorium intybuse0
- Outcome
- intercrops overyieldinge0
- Direction
- more frequentlye0
- Comparator
- lucerne intercropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chicory was well adapted as an intercrop species, with chicory intercrops overyielding more frequently than lucerne intercrops.”
Claim · model-written summary
Lupin intercrops overyielded.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the overyielding of lupin and canola intercrops demonstrates the potential to expand intercropping to include break crops”
Claim · model-written summary
Canola intercrops overyielded.
- Taxon
- canolaBrassica napus var. napuse0
- Outcome
- overyielding of lupin and canola intercropse0
- Direction
- overyieldinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the overyielding of lupin and canola intercrops demonstrates the potential to expand intercropping to include break crops”
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intercropping · growth · Medicago sativa (alfalfa)Positive and negative results
6 papers in the same direction as this paper · 13 in the opposite direction
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See all 20 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.