Abstract
The effect of grazing by sheep during the late vegetative and early reproductive phases was measured on long-duration wheat crops in 2 experiments on farms in southern NSW. In both experiments, grazed and non-grazed crops were compared with different N-fertiliser strategies. In the first experiment, grazing 40 dry-sheep equivalents (DSE)/ha for 19 days increased grain yield from 2.30 to 2.88 t/ha in a season with a dry early spring. The second experiment, in a more favourable season, compared 6 durations of grazing by an average of 32 DSE/ha. The effects of grazing varied from no yield reduction with 15 days of grazing to a reduction from 5.97 to 3.98 t/ha with 51 days of grazing. In both experiments grazing caused slower crop development, with about 1 day’s delay in anthesis and maturity for every 4–5 days of grazing. Different patterns of water use by grazed and non-grazed crops, combined with delayed development, explained much of the effects of grazing on yield. The soil accumulated more water during grazing, which was used during grain filling when water-use efficiency for grain production was high. Delayed development also allowed grazed crops to respond to later rain. In the second experiment, grazing resulted in a net loss of 38 kg N/ha from the crop. Despite reduced N levels, the grazed crops showed no greater ability than grain-only crops to recover fertiliser N. The effect of the low recovery was that N removed during grazing was not efficiently replaced by fertiliser.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 12
Claim · model-written summary
Grazing 40 DSE/ha for 19 days increased wheat grain yield from 2.30 to 2.88 t/ha in a dry-spring season.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- grazing 40 dry-sheep equivalents (DSE)/ha for 19 dayse2
- Outcome
- grain yielde2
- Direction
- increasede2
- Value
- 2.30 to 2.88 t/hae2
- Qualifier
- in a season with a dry early springe2
- Comparator
- non-grazed cropse1
- Setting
- farms in southern NSWe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of grazing by sheep during the late vegetative and early reproductive phases was measured on long-duration wheat crops in 2 experiments on farms in southern NSW”
e1“grazed and non-grazed crops were compared with different N-fertiliser strategies”
e2“grazing 40 dry-sheep equivalents (DSE)/ha for 19 days increased grain yield from 2.30 to 2.88 t/ha in a season with a dry early spring”
Claim · model-written summary
Fifteen days of grazing caused no yield reduction in wheat.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 15 days of grazinge3
- Outcome
- yielde3
- Direction
- no yield reductione3
- Comparator
- non-grazed cropse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-duration wheat crops”
e1“grazed and non-grazed crops were compared with different N-fertiliser strategies”
e3“The effects of grazing varied from no yield reduction with 15 days of grazing”
Claim · model-written summary
Fifty-one days of grazing reduced wheat yield from 5.97 to 3.98 t/ha.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 51 days of grazinge3
- Outcome
- yielde3
- Direction
- reductione3
- Value
- 5.97 to 3.98 t/hae3
- Comparator
- non-grazed cropse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-duration wheat crops”
e1“grazed and non-grazed crops were compared with different N-fertiliser strategies”
e3“The effects of grazing varied from no yield reduction with 15 days of grazing to a reduction from 5.97 to 3.98 t/ha with 51 days of grazing”
Claim · model-written summary
Grazing caused slower wheat crop development.
- Taxon
- wheatTriticum aestivume0
- Treatment
- grazinge4
- Outcome
- crop developmente4
- Direction
- slowere4
- Comparator
- non-grazed cropse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-duration wheat crops”
e1“grazed and non-grazed crops were compared with different N-fertiliser strategies”
e4“In both experiments grazing caused slower crop development”
Claim · model-written summary
Grazing delayed anthesis and maturity of wheat by about 1 day for every 4-5 days of grazing.
- Taxon
- wheatTriticum aestivume0
- Treatment
- grazinge4
- Outcome
- anthesis and maturitye4
- Direction
- delaye4
- Value
- about 1 day’s delay in anthesis and maturity for every 4–5 days of grazinge4
- Comparator
- non-grazed cropse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-duration wheat crops”
e1“grazed and non-grazed crops were compared with different N-fertiliser strategies”
e4“with about 1 day’s delay in anthesis and maturity for every 4–5 days of grazing”
Claim · model-written summary
Different water-use patterns combined with delayed development explained much of the yield effect of grazing.
- Taxon
- wheatTriticum aestivume0
- Outcome
- effects of grazing on yielde5
- Qualifier
- Different patterns of water use by grazed and non-grazed crops, combined with delayed developmente5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-duration wheat crops”
e5“Different patterns of water use by grazed and non-grazed crops, combined with delayed development, explained much of the effects of grazing on yield”
Claim · model-written summary
Soil accumulated more water during grazing than under non-grazed crops.
- Taxon
- wheatTriticum aestivume0
- Treatment
- grazinge6
- Outcome
- soil accumulated more watere6
- Direction
- moree6
- Comparator
- non-grazed cropse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-duration wheat crops”
e1“grazed and non-grazed crops were compared with different N-fertiliser strategies”
e6“The soil accumulated more water during grazing”
Claim · model-written summary
Water-use efficiency for grain production was high during grain filling in grazed crops.
- Taxon
- wheatTriticum aestivume0
- Outcome
- water-use efficiency for grain productione6
- Qualifier
- was highe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-duration wheat crops”
e6“which was used during grain filling when water-use efficiency for grain production was high”
Claim · model-written summary
Delayed development allowed grazed wheat crops to respond to later rain.
- Taxon
- wheatTriticum aestivume0
- Outcome
- respond to later raine7
- Qualifier
- Delayed developmente7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-duration wheat crops”
e7“Delayed development also allowed grazed crops to respond to later rain”
Claim · model-written summary
Grazing resulted in a net loss of 38 kg N/ha from the crop.
- Taxon
- wheatTriticum aestivume0
- Treatment
- grazinge7
- Outcome
- N/ha from the crope7
- Direction
- net losse7
- Value
- 38 kg N/hae7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-duration wheat crops”
e7“grazing resulted in a net loss of 38 kg N/ha from the crop”
Claim · model-written summary
Grazed wheat crops showed no greater ability than grain-only crops to recover fertiliser N.
- Taxon
- wheatTriticum aestivume0
- Treatment
- grazed cropse6
- Outcome
- recover fertiliser Ne6
- Direction
- no greatere6
- Comparator
- grain-only cropse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-duration wheat crops”
e6“Despite reduced N levels, the grazed crops showed no greater ability than grain-only crops to recover fertiliser N”
Claim · model-written summary
Nitrogen removed during grazing was not efficiently replaced by fertiliser.
- Taxon
- wheatTriticum aestivume0
- Outcome
- replaced by fertilisere5
- Qualifier
- N removed during grazinge5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-duration wheat crops”
e5“N removed during grazing was not efficiently replaced by fertiliser”
The same questions in other papers
grazing · growth · Triticum aestivum (wheat)Results differ
13 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
16 papers more in this group
See all 20 papers →grazing · yield · Triticum aestivum (wheat)Results differ
33 papers in the same direction as this paper · 34 in the opposite direction · 2 reporting no difference from an alternative
- negative
- negative
- negative
66 papers more in this group
See all 70 papers →grazing · phenology · Triticum aestivum (wheat)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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.