Abstract
A field experiment was conducted at Rutherglen, in north-eastern Victoria, to determine the effects of liming and deep ripping on soil water extraction by wheat, sorptivity of water into the soil profile and soil resistance to a penetrometer. The site was typical of many cropping paddocks in the region. In the unmodified state the top 20 cm of the soil profile was acid (pH 4.80) and there was a dense hardpan between 7.5 and 17.5 cm depth. Deep ripping increased water extraction by wheat by an average of 8 mm during a drought season (1982), but had no effect on water use in a wet season (1983). The major effect of ripping was to increase the water use in winter from below the ripped zone (40 cm) compared with the unripped treatment. Lime, either with or without ripping, had no significant effect on crop water extraction. Sorptivity, a measure of infiltration, was increased by ripping alone and by ripping plus lime. Soil resistance to a penetrometer was reduced by deep ripping; an effect which had persisted at least 30 months after the last ripping operation. Economic wheat yield responses were obtained by using deep ripping and liming to improve soil physical properties at this site.
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Claims 2
Claim · model-written summary
Deep ripping increased wheat water extraction by 8 mm in the 1982 drought.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Deep rippinge0
- Outcome
- water extractione0
- Direction
- increasede0
- Value
- 8 mme0
- Qualifier
- during a drought season (1982)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Deep ripping increased water extraction by wheat by an average of 8 mm during a drought season (1982)”
Claim · model-written summary
Deep ripping and liming produced economic wheat yield responses.
- Taxon
- wheatTriticum aestivume0
- Treatment
- deep ripping and liminge0
- Outcome
- wheat yield responsese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Economic wheat yield responses were obtained by using deep ripping and liming to improve soil physical properties at this site”
The same questions in other papers
lime · yield · Triticum aestivum (wheat)Positive and negative results
139 papers in the same direction as this paper · 31 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- positive
- positive
169 papers more in this group
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.