Abstract
Wheat grain yields, dry matter production and yield components were measured in a field experiment in north-eastern Victoria over 5 seasons where lime application and deep ripping had been carried out. The soil at the site was strongly acid (pHw 5.2 at 0-1 0 cm) and had a dense hardpan at 7.5- 17.5 cm depth. Grain yields (control yields 1981-85: 1.34, 0.25, 1.64, 2.36, 2.09 t ha-1) were increased each year by both lime (31-103% range) and deep ripping (11- 41% range), but the application of some lime was necessary to obtain benefit from deep ripping. The increased grain yield was mainly due to more heads per metre of row, although head size and grain weight were also increased by lime treatment. Lime increased the dry matter yield of roots and decreased the top to root dry matter ratio. Deep ripping increased the dry matter yield of roots at depth and also reduced root distortion where the hardpan had been shattered. In a drought season, deep ripping increased grain weight. Root disease was accentuated at the higher rates of lime.
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Claims 10
Claim · model-written summary
Lime increased wheat grain yields by 31–103% each year.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- limee0
- Outcome
- Grain yieldse0
- Direction
- increasede0
- Value
- 31-103%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yields (control yields 1981-85: 1.34, 0.25, 1.64, 2.36, 2.09 t ha-1) were increased each year by both lime (31-103% range)”
t0“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
t1“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
Claim · model-written summary
Deep ripping increased grain yields by 11–41% each year, provided some lime was applied.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- deep rippinge0
- Outcome
- benefite0
- Value
- 11- 41%e0
- Qualifier
- application of some lime was necessarye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“and deep ripping (11- 41% range), but the application of some lime was necessary to obtain benefit from deep ripping”
t0“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
t1“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
Claim · model-written summary
Yield gains were mainly due to more heads per metre of row.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- more heads per metre of rowe0
- Qualifier
- mainly due toe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increased grain yield was mainly due to more heads per metre of row”
t0“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
t1“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
Claim · model-written summary
Lime increased head size and grain weight.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- lime treatmente0
- Outcome
- head size and grain weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“head size and grain weight were also increased by lime treatment”
t0“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
t1“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
Claim · model-written summary
Lime increased root dry matter yield.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Limee0
- Outcome
- dry matter yield of rootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lime increased the dry matter yield of roots”
t0“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
t1“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
Claim · model-written summary
Lime decreased the top to root dry matter ratio.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Limee0
- Outcome
- top to root dry matter ratioe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lime increased the dry matter yield of roots and decreased the top to root dry matter ratio”
t0“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
t1“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
Claim · model-written summary
Deep ripping increased root dry matter yield at depth and reduced root distortion.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Deep rippinge0
- Outcome
- dry matter yield of roots at depthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Deep ripping increased the dry matter yield of roots at depth and also reduced root distortion where the hardpan had been shattered”
t0“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
t1“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
Claim · model-written summary
Deep ripping reduced root distortion where the hardpan was shattered.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Deep rippinge0
- Outcome
- root distortione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Deep ripping increased the dry matter yield of roots at depth and also reduced root distortion where the hardpan had been shattered”
t0“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
t1“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
Claim · model-written summary
Deep ripping increased grain weight in a drought season.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- deep rippinge0
- Outcome
- grain weighte0
- Direction
- increasede0
- Qualifier
- In a drought seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In a drought season, deep ripping increased grain weight”
t0“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
t1“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
Claim · model-written summary
Higher lime rates accentuated root disease.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- higher rates of limee0
- Outcome
- Root diseasee0
- Direction
- accentuatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root disease was accentuated at the higher rates of lime”
t0“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
t1“Increasing wheat yields in north-eastern Victoria by liming and deep ripping”
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See all 173 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.