Abstract
Forage from revegetated saltland may not be well utilised because of a lack of information on the importance of the various components of the system. For example, in a pen feeding experiment provision of a low salt forage with saltbush markedly improved sheep performance (Warren et al. 1990) and there are other reports indicating that the low salt, understorey grasses are important in a saltland system. Therefore, the aim of this experiment was to examine the relative importance of saltland pasture components for sheep production and to examine differences between 2 saltbush (Atriplex) species. A 6 ha, saline site sown in May 1989 with Agropyron elongatum (tall wheat grass) (TWG), was mounded in July 1989 with a Mallen Nich Seeder (Malcolm and Allen 1981), and subdivided into 9 plots (3 blocks x 3 treatments) of 0.65 ha each. One plot in each block was sown at the same time with Atriplex Zentiformis (Quail brush) and 1 with A. undulata (Wavy leaf saltbush) with 1 remaining as TWG alone. In February 1991, 120 adult wethers (mean liveweight 64.4 * 3.5 kg) were divided equally into 10 groups and allocated to the 9 plots, 1 group was returned to the main mob for monitoring. Liveweight and wool growth were measured after 28 and 56 days. Sheep in the group in the main mob were subjected to normal farm management practices and supplemented with about 125 g oats/day. At the beginning of the experiment, TWG provided 9.98 + 2.02 t dry matter (DM)/ha across all plots; this had an in vitro DM digestibility (DMD) of 0.46 for leaf and 0.45 for stem. Atriplex undulata contributed 0.35 t/ha edible DM (leaf and stem <2 mm diameter) (DMD 0.73), and A. Zentiformis 0.18 t/ha edible DM (DMD 0.78). Sheep on the TWG plots lost more weight (PcO.05, Table 1) over the 56 days of the experiment than did any of the other sheep. Wool growth did not differ (-0.05) between treatments but declined from 6.4 g/m2.day in period 1, to 5.1 g/m2.day in period 2.
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Claims 10
Claim · model-written summary
Sheep grazing the TWG plots lost more weight than the other sheep over 56 days.
- Taxon
- Agropyron elongatum
Thinopyrum elongatume0 - Treatment
- TWG plotse1
- Outcome
- weighte1
- Direction
- lost moree1
- Comparator
- any of the other sheepe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agropyron elongatum (tall wheat grass) (TWG)”
e1“Sheep on the TWG plots lost more weight (PcO.05, Table 1) over the 56 days of the experiment than did any of the other sheep”
Claim · model-written summary
Wool growth did not differ between the salt tolerant forage treatments.
- Taxon
- Agropyron elongatumThinopyrum elongatume0
- Treatment
- salt tolerant foragest0
- Outcome
- Wool growthe2
- Direction
- did not differe2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agropyron elongatum (tall wheat grass) (TWG)”
e2“Wool growth did not differ (-0.05) between treatments but declined from 6.4 g/m2.day in period 1, to 5.1 g/m2.day in period 2”
t0“salt tolerant forages”
Claim · model-written summary
Wool growth declined from 6.4 g/m2.day in period 1 to 5.1 g/m2.day in period 2.
- Taxon
- Agropyron elongatumThinopyrum elongatume0
- Outcome
- Wool growthe2
- Direction
- declinede2
- Value
- 6.4 g/m2.day in period 1, to 5.1 g/m2.daye2
- Comparator
- period 1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agropyron elongatum (tall wheat grass) (TWG)”
e2“Wool growth did not differ (-0.05) between treatments but declined from 6.4 g/m2.day in period 1, to 5.1 g/m2.day in period 2”
Claim · model-written summary
TWG provided 9.98 + 2.02 t dry matter per hectare at the start of the experiment.
- Taxon
- Agropyron elongatumThinopyrum elongatume0
- Outcome
- dry mattere3
- Value
- 9.98 + 2.02 t dry matter (DM)/hae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agropyron elongatum (tall wheat grass) (TWG)”
e3“At the beginning of the experiment, TWG provided 9.98 + 2.02 t dry matter (DM)/ha across all plots”
Claim · model-written summary
TWG leaf in vitro DM digestibility was 0.46.
- Taxon
- Agropyron elongatumThinopyrum elongatume0
- Organ / stage
- leafe4
- Outcome
- in vitro DM digestibility (DMD)e4
- Value
- 0.46e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agropyron elongatum (tall wheat grass) (TWG)”
e4“this had an in vitro DM digestibility (DMD) of 0.46 for leaf and 0.45 for stem”
Claim · model-written summary
TWG stem in vitro DM digestibility was 0.45.
- Taxon
- Agropyron elongatumThinopyrum elongatume0
- Organ / stage
- steme4
- Outcome
- in vitro DM digestibility (DMD)e4
- Value
- 0.45e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agropyron elongatum (tall wheat grass) (TWG)”
e4“this had an in vitro DM digestibility (DMD) of 0.46 for leaf and 0.45 for stem”
Claim · model-written summary
Atriplex undulata contributed 0.35 t/ha edible dry matter.
- Taxon
- Atriplex undulata
Atriplex undulatae0 - Outcome
- edible DMe0
- Value
- 0.35 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Atriplex undulata contributed 0.35 t/ha edible DM (leaf and stem <2 mm diameter) (DMD 0.73), and A. Zentiformis 0.18 t/ha edible DM (DMD 0.78)”
Claim · model-written summary
Atriplex undulata had a DMD of 0.73.
- Taxon
- Atriplex undulataAtriplex undulatae0
- Outcome
- DMDe0
- Value
- 0.73e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Atriplex undulata contributed 0.35 t/ha edible DM (leaf and stem <2 mm diameter) (DMD 0.73), and A. Zentiformis 0.18 t/ha edible DM (DMD 0.78)”
Claim · model-written summary
Atriplex Zentiformis contributed 0.18 t/ha edible dry matter.
Verbatim
e0“Atriplex undulata contributed 0.35 t/ha edible DM (leaf and stem <2 mm diameter) (DMD 0.73), and A. Zentiformis 0.18 t/ha edible DM (DMD 0.78)”
Claim · model-written summary
Atriplex Zentiformis had a DMD of 0.78.
Verbatim
e0“Atriplex undulata contributed 0.35 t/ha edible DM (leaf and stem <2 mm diameter) (DMD 0.73), and A. Zentiformis 0.18 t/ha edible DM (DMD 0.78)”
The same questions in other papers
salinity · growth · Thinopyrum elongatum (tall wheatgrass)Positive and negative results
6 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
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6 papers more in this group
See all 10 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.