Abstract
Effect of nitrogen(N) supply on dry matter productivity and nitrogen use efficiency in summer maize(Zea mays L.) hybrid Zhengdan 958 with different plant population was studied.The results showed that the effect of N on grain yield of individual plants,mainly acted through the regulation of kernel number,was more evident in 67 500 plants/ha and 82 500 plants/ha.Appropriate N could improve the development of apical kernel,and increase kernel number and yield by reducing aborted kernels.N use efficiency could be increased by distributed more N absorbed by plant to kernel.Appropriate N could not only keep leaves with higher photosynthesis ability and provide more assimilate to grain,but also accelerate C-N mobilization from vegetative organs to grain.
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Claims 6
Claim · model-written summary
Nitrogen affected individual plant grain yield mainly through kernel number, more evidently at two plant populations.
- Material
- Zhengdan 958e1
- Treatment
- Ne0
- Outcome
- grain yield of individual plantse0
- Direction
- more evidente0
- Qualifier
- 67 500 plants/ha and 82 500 plants/hae0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of N on grain yield of individual plants,mainly acted through the regulation of kernel number,was more evident in 67 500 plants/ha and 82 500 plants/ha.”
e1“summer maize(Zea mays L.) hybrid Zhengdan 958”
Claim · model-written summary
Appropriate nitrogen improved apical kernel development and increased kernel number by reducing aborted kernels.
- Treatment
- Appropriate Ne0
- Outcome
- development of apical kernel,and increase kernel numbere0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Appropriate N could improve the development of apical kernel,and increase kernel number and yield by reducing aborted kernels.”
e1“summer maize(Zea mays L.) hybrid Zhengdan 958”
Claim · model-written summary
Appropriate nitrogen increased maize yield by reducing aborted kernels.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Appropriate N could improve the development of apical kernel,and increase kernel number and yield by reducing aborted kernels.”
e1“summer maize(Zea mays L.) hybrid Zhengdan 958”
Claim · model-written summary
Nitrogen use efficiency could increase when more absorbed nitrogen was distributed to kernels.
- Compound
- Ne0
- Outcome
- N use efficiencye0
- Direction
- increasede0
- Qualifier
- distributed more N absorbed by plant to kernele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N use efficiency could be increased by distributed more N absorbed by plant to kernel.”
e1“summer maize(Zea mays L.) hybrid Zhengdan 958”
Claim · model-written summary
Appropriate nitrogen could sustain higher leaf photosynthetic ability and more assimilate provision to grain.
- Organ / stage
- leavese0
- Treatment
- Appropriate Ne0
- Outcome
- photosynthesis ability and provide more assimilate to graine0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Appropriate N could not only keep leaves with higher photosynthesis ability and provide more assimilate to grain”
e1“summer maize(Zea mays L.) hybrid Zhengdan 958”
Claim · model-written summary
Appropriate nitrogen could accelerate carbon and nitrogen mobilization from vegetative organs to grain.
- Treatment
- Appropriate Ne0
- Outcome
- C-N mobilization from vegetative organs to graine0
- Direction
- acceleratee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Appropriate N could not only keep leaves with higher photosynthesis ability and provide more assimilate to grain,but also accelerate C-N mobilization from vegetative organs to grain.”
e1“summer maize(Zea mays L.) hybrid Zhengdan 958”