Abstract
The uptake of phosphorus (P) by plants is strongly dependent on the root distribution in the soil profile. The root architecture of crops changes significantly under different irrigation methods. A field experiment was conducted in 2016 and 2017 to investigate the root growth and P uptake responses to drip irrigation (DI) and flooding irrigation (FI) for cotton crop (Gossypium hirsutum L.). Plant growth, P concentration and P uptake of cotton plants were higher under DI compared to FI. Although the total root length of a cotton plant was not significantly different between DI and FI. While root system was more shallowly distributed in the soil profile under DI than FI (48.8% of the total roots length were distributed in the 0-10 cm soil layer under DI, and 31.5% under FI). Greater overlap in roots distribution and P concentration in soil was observed under DI. The P content in the 0-10 cm soil layer was significantly lower under DI than FI, because of P absorbed by cotton plants roots for above-ground biomass production. The contribution of unit root length of P uptake towards shoot was higher under DI. It was concluded that shallow roots distribution in response to DI may improve the P nutrition of cotton plants.
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Claims 9
Claim · model-written summary
Cotton plant growth was higher under drip than flooding irrigation.
- Taxon
- cotton plants
Gossypium hirsutume0 - Treatment
- DIe0
- Outcome
- Plant growthe0
- Direction
- highere0
- Comparator
- FIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant growth, P concentration and P uptake of cotton plants were higher under DI compared to FI.”
Claim · model-written summary
Cotton phosphorus concentration was higher under drip than flooding irrigation.
- Taxon
- cotton plantsGossypium hirsutume0
- Treatment
- DIe0
- Outcome
- P concentratione0
- Direction
- highere0
- Comparator
- FIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant growth, P concentration and P uptake of cotton plants were higher under DI compared to FI.”
Claim · model-written summary
Cotton phosphorus uptake was higher under drip than flooding irrigation.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant growth, P concentration and P uptake of cotton plants were higher under DI compared to FI.”
Claim · model-written summary
Total cotton root length did not differ significantly between irrigation methods.
- Taxon
- cotton plantGossypium hirsutume0
- Treatment
- DIe0
- Outcome
- total root lengthe0
- Direction
- not significantly differente0
- Comparator
- FIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the total root length of a cotton plant was not significantly different between DI and FI.”
Claim · model-written summary
Cotton roots were more shallowly distributed under drip irrigation, with 48.8% versus 31.5% in the 0-10 cm layer.
Verbatim
e0“root system was more shallowly distributed in the soil profile under DI than FI (48.8% of the total roots length were distributed in the 0-10 cm soil layer under DI, and 31.5% under FI)”
Claim · model-written summary
Root distribution and soil phosphorus concentration overlapped more under drip irrigation.
Not reportedTaxonComparator
Verbatim
e0“Greater overlap in roots distribution and P concentration in soil was observed under DI.”
Claim · model-written summary
Phosphorus content in the top soil layer was significantly lower under drip than flooding irrigation.
Not reportedTaxon
Verbatim
e0“The P content in the 0-10 cm soil layer was significantly lower under DI than FI”
Claim · model-written summary
Phosphorus uptake toward shoots per unit root length was higher under drip irrigation.
Not reportedTaxonComparator
Verbatim
e0“The contribution of unit root length of P uptake towards shoot was higher under DI.”
Claim · model-written summary
The authors infer that shallow roots under drip irrigation may improve cotton phosphorus nutrition.
- Taxon
- cotton plantsGossypium hirsutume0
- Treatment
- DIe0
- Outcome
- P nutritione0
- Direction
- improvee0
- Qualifier
- shallow roots distributione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shallow roots distribution in response to DI may improve the P nutrition of cotton plants”
The same questions in other papers
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- negative
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See all 32 papers →irrigation · growth · Gossypium hirsutum (cotton)Positive and negative results
100 papers in the same direction as this paper · 40 in the opposite direction · 3 reporting no difference from an alternative
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See all 144 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.