Abstract
Under four NK levels,the effect of partial root-zone irrigation during the different growth stages on dry mass accumulation,water and N use of maize were studied using a pot experiment.The results showed that compared to conventional irrigation,the partial root-zone irrigation during different growth stages lowered water consumption significantly,and alternate partial root-zone irrigation at the seedling to jointing stage lowered or increased dry mass accumulation slightly,and increased water use efficiency by 22.8% and had the highest N apparent recovery fraction at medium NK level(0.12 g N per kg soil and 0.12 g K2O per kg soil).Under the same irrigation,medium NK level had higher dry mass accumulation,water use efficiency and N uptake of maize.Therefore,alternate partial root-zone irrigation at the seedling to jointing stage of maize is an efficient irrigation method under moderate NK level.
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Claims 6
Claim · model-written summary
Partial root-zone irrigation at different growth stages significantly lowered water consumption relative to conventional irrigation.
- Treatment
- partial root-zone irrigation during different growth stagese0
- Outcome
- water consumptione0
- Direction
- lowerede0
- Comparator
- conventional irrigatione0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared to conventional irrigation,the partial root-zone irrigation during different growth stages lowered water consumption significantly”
t0“Maize”
Claim · model-written summary
Alternate partial root-zone irrigation at seedling to jointing stage slightly lowered or increased dry mass accumulation.
- Treatment
- alternate partial root-zone irrigation at the seedling to jointing stagee0
- Outcome
- dry mass accumulatione0
- Direction
- lowered or increasede0
- Qualifier
- slightlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alternate partial root-zone irrigation at the seedling to jointing stage lowered or increased dry mass accumulation slightly”
t0“Maize”
Claim · model-written summary
Alternate partial root-zone irrigation at seedling to jointing stage increased water use efficiency by 22.8%.
- Treatment
- alternate partial root-zone irrigation at the seedling to jointing stagee0
- Outcome
- water use efficiencye0
- Direction
- increasede0
- Value
- 22.8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alternate partial root-zone irrigation at the seedling to jointing stage lowered or increased dry mass accumulation slightly,and increased water use efficiency by 22.8%”
t0“Maize”
Claim · model-written summary
At medium NK level, alternate partial root-zone irrigation at seedling to jointing had the highest N apparent recovery fraction.
- Treatment
- medium NK level(0.12 g N per kg soil and 0.12 g K2O per kg soil)e0
- Outcome
- N apparent recovery fractione0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“had the highest N apparent recovery fraction at medium NK level(0.12 g N per kg soil and 0.12 g K2O per kg soil)”
t0“Maize”
Claim · model-written summary
Under the same irrigation, medium NK level had higher dry mass accumulation, water use efficiency and N uptake.
- Treatment
- medium NK levele0
- Outcome
- dry mass accumulation,water use efficiency and N uptakee0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the same irrigation,medium NK level had higher dry mass accumulation,water use efficiency and N uptake of maize.”
Claim · model-written summary
The authors recommend alternate partial root-zone irrigation at seedling to jointing under moderate NK level as efficient.
- Treatment
- alternate partial root-zone irrigation at the seedling to jointing stagee0
- Outcome
- efficient irrigation methode0
- Qualifier
- under moderate NK levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alternate partial root-zone irrigation at the seedling to jointing stage of maize is an efficient irrigation method under moderate NK level.”
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