Abstract
:22 October) were analyzed in two growing seasons from 2014 to 2016. The results showed that there was no significant difference in grain yield and grain number per unit area among different sowing dates. Delayed sowing date decreased nitrogen accumulation in both shoots and spikes, and then reduced nitrogen uptake efficiency and increased nitrogen utilization efficiency and nitrogen fruiting efficiency. Nitrogen fruiting efficiency was positively correlated with nitrogen utilization efficiency, negatively correlated with nitrogen uptake efficiency, but not significantly correlated with nitrogen use efficiency. Nitrogen nutrition index tended to be optimum with delayed sowing dates, showed synchronicity with the improvement of nitrogen fruiting efficiency. Pre-anthesis nitrogen remobilization amount in vegetative organs and post-anthesis nitrogen accumulation amount significantly decreased with postpone of sowing dates, but pre-anthesis nitrogen remobilization efficiency remarkably rise. There was a positive correlation between nitrogen fruiting efficiency and nitrogen remobilization efficiency, indicating that the improvement in nitrogen remobilization efficiency facilitated the increment in nitrogen frui-ting efficiency. Taken together, properly delayed sowing date reduced nitrogen uptake, but increased nitrogen utilization efficiency and nitrogen fruiting efficiency and improved nitrogen supply status, which provided a theoretical basis for the implementation of reducing input and improving nitrogen utilization efficiency in wheat production in this region.
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Claims 15
Claim · model-written summary
Grain yield did not differ significantly among wheat sowing dates.
- Taxon
- winter wheat
Triticum aestivumt0 - Treatment
- different sowing datese0
- Outcome
- grain yielde0
- Direction
- no significant differencee0
- Comparator
- different sowing datese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no significant difference in grain yield and grain number per unit area among different sowing dates”
t0“winter wheat”
Claim · model-written summary
Grain number per unit area did not differ significantly among wheat sowing dates.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- different sowing datese0
- Outcome
- grain number per unit areae0
- Direction
- no significant differencee0
- Comparator
- different sowing datese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no significant difference in grain yield and grain number per unit area among different sowing dates”
t0“winter wheat”
Claim · model-written summary
Delayed sowing lowered wheat nitrogen accumulation in both shoots and spikes.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- Delayed sowing datee0
- Outcome
- nitrogen accumulation in both shoots and spikese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delayed sowing date decreased nitrogen accumulation in both shoots and spikes, and then reduced nitrogen uptake efficiency and increased nitrogen utilization efficiency and nitrogen fruiting efficiency.”
t0“winter wheat”
Claim · model-written summary
Delayed sowing lowered wheat nitrogen uptake efficiency.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- Delayed sowing datee0
- Outcome
- nitrogen uptake efficiencye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delayed sowing date decreased nitrogen accumulation in both shoots and spikes, and then reduced nitrogen uptake efficiency and increased nitrogen utilization efficiency and nitrogen fruiting efficiency.”
t0“winter wheat”
Claim · model-written summary
Delayed sowing raised wheat nitrogen utilization efficiency.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- Delayed sowing datee0
- Outcome
- nitrogen utilization efficiencye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delayed sowing date decreased nitrogen accumulation in both shoots and spikes, and then reduced nitrogen uptake efficiency and increased nitrogen utilization efficiency and nitrogen fruiting efficiency.”
t0“winter wheat”
Claim · model-written summary
Delayed sowing raised wheat nitrogen fruiting efficiency.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- Delayed sowing datee0
- Outcome
- nitrogen fruiting efficiencye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delayed sowing date decreased nitrogen accumulation in both shoots and spikes, and then reduced nitrogen uptake efficiency and increased nitrogen utilization efficiency and nitrogen fruiting efficiency.”
t0“winter wheat”
Claim · model-written summary
Wheat nitrogen fruiting efficiency was positively correlated with nitrogen utilization efficiency.
- Taxon
- winter wheatTriticum aestivumt0
- Outcome
- Nitrogen fruiting efficiencye0
- Direction
- positively correlatede0
- Qualifier
- nitrogen utilization efficiencye0
- Comparator
- nitrogen utilization efficiencye0
Not reportedOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fruiting efficiency was positively correlated with nitrogen utilization efficiency, negatively correlated with nitrogen uptake efficiency, but not significantly correlated with nitrogen use efficiency.”
t0“winter wheat”
Claim · model-written summary
Wheat nitrogen fruiting efficiency was negatively correlated with nitrogen uptake efficiency.
- Taxon
- winter wheatTriticum aestivumt0
- Outcome
- Nitrogen fruiting efficiencye0
- Direction
- negatively correlatede0
- Qualifier
- nitrogen uptake efficiencye0
- Comparator
- nitrogen uptake efficiencye0
Not reportedOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fruiting efficiency was positively correlated with nitrogen utilization efficiency, negatively correlated with nitrogen uptake efficiency, but not significantly correlated with nitrogen use efficiency.”
t0“winter wheat”
Claim · model-written summary
Wheat nitrogen fruiting efficiency was not significantly correlated with nitrogen use efficiency.
- Taxon
- winter wheatTriticum aestivumt0
- Outcome
- Nitrogen fruiting efficiencye0
- Direction
- not significantly correlatede0
- Qualifier
- nitrogen use efficiencye0
- Comparator
- nitrogen use efficiencye0
Not reportedOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fruiting efficiency was positively correlated with nitrogen utilization efficiency, negatively correlated with nitrogen uptake efficiency, but not significantly correlated with nitrogen use efficiency.”
t0“winter wheat”
Claim · model-written summary
Wheat nitrogen nutrition index tended toward optimum under delayed sowing.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- delayed sowing datese0
- Outcome
- Nitrogen nutrition indexe0
- Direction
- tended to be optimume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen nutrition index tended to be optimum with delayed sowing dates, showed synchronicity with the improvement of nitrogen fruiting efficiency.”
t0“winter wheat”
Claim · model-written summary
Wheat nitrogen nutrition index changed synchronously with improved nitrogen fruiting efficiency.
- Taxon
- winter wheatTriticum aestivumt0
- Outcome
- Nitrogen nutrition indexe0
- Direction
- synchronicitye0
- Comparator
- nitrogen fruiting efficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen nutrition index tended to be optimum with delayed sowing dates, showed synchronicity with the improvement of nitrogen fruiting efficiency.”
t0“winter wheat”
Claim · model-written summary
Later wheat sowing lowered Pre-anthesis nitrogen remobilization amount.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- postpone of sowing datese0
- Outcome
- Pre-anthesis nitrogen remobilization amounte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-anthesis nitrogen remobilization amount in vegetative organs and post-anthesis nitrogen accumulation amount significantly decreased with postpone of sowing dates, but pre-anthesis nitrogen remobilization efficiency remarkably rise.”
t0“winter wheat”
Claim · model-written summary
Later wheat sowing lowered post-anthesis nitrogen accumulation amount.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- postpone of sowing datese0
- Outcome
- post-anthesis nitrogen accumulation amounte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-anthesis nitrogen remobilization amount in vegetative organs and post-anthesis nitrogen accumulation amount significantly decreased with postpone of sowing dates, but pre-anthesis nitrogen remobilization efficiency remarkably rise.”
t0“winter wheat”
Claim · model-written summary
Later wheat sowing raised pre-anthesis nitrogen remobilization efficiency.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- postpone of sowing datese0
- Outcome
- pre-anthesis nitrogen remobilization efficiencye0
- Direction
- remarkably risee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-anthesis nitrogen remobilization amount in vegetative organs and post-anthesis nitrogen accumulation amount significantly decreased with postpone of sowing dates, but pre-anthesis nitrogen remobilization efficiency remarkably rise.”
t0“winter wheat”
Claim · model-written summary
Wheat nitrogen fruiting efficiency correlated positively with nitrogen remobilization efficiency.
- Taxon
- winter wheatTriticum aestivumt0
- Outcome
- nitrogen fruiting efficiencye0
- Direction
- positive correlatione0
- Comparator
- nitrogen remobilization efficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a positive correlation between nitrogen fruiting efficiency and nitrogen remobilization efficiency”
t0“winter wheat”
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