Abstract
A field experiment was conducted to investigate the effects of alternate irrigation (AI) on root distribution and yield of wheat (Triticum aestivum L.)/maize (Zea mays L.) intercropping system during the period of 2007-2009 in an oasis of arid north-west China. Five treatments, i.e. sole wheat with conventional irrigation (W), sole maize with alternate irrigation (AM), sole maize with conventional irrigation (CM), wheat/maize intercropping with alternate irrigation (AW/M), and wheat/maize intercropping with conventional irrigation (CW/M). The results showed that root growth was significantly enhanced by alternate irrigation (AI), root weight density (RWD), root length density (RLD) and root-shoot ratios (R/S) in AI treatments were all higher than those in conventional irrigation (CI) treatments. Moreover, intercropped wheat and maize also had a greater root development at a majority of soil depths than wheat and maize in monoculture. In three years, AW/M always achieved the highest total seed yield under different treatments. Higher yield and reduced irrigation resulted in higher water use efficiency (WUE) for the AW/M treatment. Our results suggest that AI should be a useful water-saving irrigation method on wheat/maize intercropping in arid oasis field where intercropping planting is decreased because of limited water resource.
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Claims 6
Claim · model-written summary
Alternate irrigation significantly enhanced root growth.
- Taxon
- wheat/maize
Triticum aestivum
Zea mayst0 - Treatment
- alternate irrigation (AI)e0
- Outcome
- root growthe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root growth was significantly enhanced by alternate irrigation (AI)”
t0“wheat/maize”
Claim · model-written summary
Alternate irrigation raised root weight density, root length density, and root-shoot ratio relative to conventional irrigation.
- Taxon
- wheat/maizeTriticum aestivumZea mayst0
- Treatment
- AI treatmentse0
- Outcome
- root weight density (RWD), root length density (RLD) and root-shoot ratios (R/S)e0
- Direction
- highere0
- Comparator
- conventional irrigation (CI) treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root weight density (RWD), root length density (RLD) and root-shoot ratios (R/S) in AI treatments were all higher than those in conventional irrigation (CI) treatments”
t0“wheat/maize”
Claim · model-written summary
Intercropped wheat and maize had greater root development than monocultures across most soil depths.
- Taxon
- wheat and maizeTriticum aestivumZea mayse0
- Treatment
- intercroppede0
- Outcome
- root developmente0
- Direction
- greatere0
- Comparator
- monoculturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropped wheat and maize also had a greater root development at a majority of soil depths than wheat and maize in monoculture”
Claim · model-written summary
Alternate-irrigated wheat/maize intercropping had the highest total seed yield over three years.
- Taxon
- wheat/maizeTriticum aestivumZea mayst0
- Treatment
- AW/Me0
- Outcome
- total seed yielde0
- Direction
- higheste0
- Comparator
- different treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In three years, AW/M always achieved the highest total seed yield under different treatments”
t0“wheat/maize”
Claim · model-written summary
Alternate-irrigated intercropping achieved higher water use efficiency through higher yield and reduced irrigation.
- Taxon
- wheat/maizeTriticum aestivumZea mayst0
- Treatment
- AW/M treatmente0
- Outcome
- water use efficiency (WUE)e0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher yield and reduced irrigation resulted in higher water use efficiency (WUE) for the AW/M treatment”
t0“wheat/maize”
Claim · model-written summary
The authors recommend alternate irrigation for water-saving wheat/maize intercropping in arid oasis fields.
- Taxon
- wheat/maizeTriticum aestivumZea mayse0
- Outcome
- useful water-saving irrigation methode0
- Setting
- arid oasis fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AI should be a useful water-saving irrigation method on wheat/maize intercropping in arid oasis field”
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See all 289 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.