Abstract
Subsurface drip irrigation is an important model of water-saving irrigation.One-year-old 'Gale Gala' apple trees grafted onto Malus hupehensis Rehd.were used to research the effects of drip irrigation in different depths on plants growth and water-use efficiency.Three treatments were executed: surface drip irrigation(served as control),middle(7 cm-underground) drip irrigation and deep(14 cm-underground) drip irrigation.The results showed that: compared with the surface control drip irrigation,the deep drip irrigation reduced the photosynthetic characteristics and root activity,but increased the root-shoot ratio and water use efficiency;the middle drip irrigation improved the gas exchange parameters and unchanged the root vigor and reduced water-use efficiency.In conclusion,the middle depth drip irrigation was much more benefit to apple trees vegetative growth and irrigation water-use efficiency than the other two irrigation regimes,which can be widely used in arid and semi-arid areas.
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Claims 6
Claim · model-written summary
Deep drip irrigation reduced apple photosynthetic characteristics and root activity relative to surface drip.
- Taxon
- apple trees
Malus domesticat0 - Treatment
- deep drip irrigatione0
- Outcome
- photosynthetic characteristics and root activitye0
- Direction
- reducede0
- Comparator
- surface control drip irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with the surface control drip irrigation,the deep drip irrigation reduced the photosynthetic characteristics and root activity”
t0“apple trees”
Claim · model-written summary
Deep drip irrigation increased apple root-shoot ratio and water use efficiency.
- Taxon
- apple treesMalus domesticat0
- Treatment
- deep drip irrigatione0
- Outcome
- root-shoot ratio and water use efficiencye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the deep drip irrigation reduced the photosynthetic characteristics and root activity,but increased the root-shoot ratio and water use efficiency”
t0“apple trees”
Claim · model-written summary
Middle depth drip irrigation improved apple gas exchange parameters.
- Taxon
- apple treesMalus domesticat0
- Treatment
- middle drip irrigatione0
- Outcome
- gas exchange parameterse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the middle drip irrigation improved the gas exchange parameters”
t0“apple trees”
Claim · model-written summary
Middle depth drip irrigation left apple root vigor unchanged.
- Taxon
- apple treesMalus domesticat0
- Treatment
- middle drip irrigatione0
- Outcome
- root vigore0
- Direction
- unchangede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the middle drip irrigation improved the gas exchange parameters and unchanged the root vigor”
t0“apple trees”
Claim · model-written summary
Middle depth drip irrigation reduced apple water use efficiency.
- Taxon
- apple treesMalus domesticat0
- Treatment
- middle drip irrigatione0
- Outcome
- water-use efficiencye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the middle drip irrigation improved the gas exchange parameters and unchanged the root vigor and reduced water-use efficiency”
t0“apple trees”
Claim · model-written summary
Authors concluded middle depth irrigation benefits apple vegetative growth and irrigation water use efficiency more than the other regimes.
- Taxon
- apple treesMalus domesticae0
- Outcome
- middle depth drip irrigatione0
- Comparator
- other two irrigation regimese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the middle depth drip irrigation was much more benefit to apple trees vegetative growth and irrigation water-use efficiency than the other two irrigation regimes”
The same questions in other papers
irrigation · growth · Malus domestica (apple)Results differ
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25 papers in the same direction as this paper · 11 in the opposite direction · 1 reporting no difference from an alternative
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See all 38 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.