Abstract
Nitrogen (N), as a macro-element, plays a vital role in plant growth and development. N deficiency affects plant productivity by decreasing the photosynthesis, leaf area, and longevity of green leaf. The experimental design was a randomized complete block design with four replicates: N0 (0 kg N ha−1), N90 (90 kg N ha−1), N180 (180 kg N ha−1), and N210 (210 kg N ha−1), respectively, i.e., the effects of different N application levels on photosynthetic physiology, leaf characteristics, yield, and production. The findings of the present study underscore the importance of optimizing nitrogen application to maximize light capture, photosynthetic efficiency, and crop productivity. Under N-treated groups (N90, N180, and N210), the average photosynthetically active radiation (PAR) of panicle leaves at all levels, N210, was determined to be higher than that of other treated groups, as well as the N0 level and the upper, middle, and lower regions of N0, N90, and N180 plants under the same leaf area index (LAI), and it was noted to be higher under N210, respectively. Dry matter accumulation under N180, and N210 increased, respectively, and under N210, the dry matter accumulation of the population was significantly higher than that under N180, respectively. The nitrogen use efficiency (NUE), nitrogen recovery efficiency (NRE), nitrogen internal efficiency (NIE), and partial factor productivity of nitrogen (PFPN) under different nitrogen (N) application rates were significantly higher than N0, where the NIE of N180 was significantly higher than that of N210, the NUE and NRE of N180 and N210 were higher than those of N0, and the difference from PFPN was not significant, respectively.
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Claims 6
Claim · model-written summary
Under N-treated groups, the photosynthetically active radiation of panicle leaves at N210 was higher than in the other treated groups.
- Organ / stage
- panicle leavese1
- Treatment
- N210e1
- Outcome
- average photosynthetically active radiation (PAR) of panicle leavese1
- Direction
- highere1
- Comparator
- other treated groupse1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield of Maize”
e1“Under N-treated groups (N90, N180, and N210), the average photosynthetically active radiation (PAR) of panicle leaves at all levels, N210, was determined to be higher than that of other treated groups”
Claim · model-written summary
Dry matter accumulation increased under N180 and N210.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield of Maize”
e2“Dry matter accumulation under N180, and N210 increased, respectively”
Claim · model-written summary
Under N210, population dry matter accumulation was significantly higher than under N180.
- Treatment
- N210e3
- Outcome
- the dry matter accumulation of the populatione3
- Direction
- highere3
- Comparator
- N180e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield of Maize”
e3“under N210, the dry matter accumulation of the population was significantly higher than that under N180”
Claim · model-written summary
NUE and NRE of N180 and N210 were higher than those of N0.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield of Maize”
e4“The nitrogen use efficiency (NUE), nitrogen recovery efficiency (NRE), nitrogen internal efficiency (NIE), and partial factor productivity of nitrogen (PFPN) under different nitrogen (N) application rates”
e5“the NUE and NRE of N180 and N210 were higher than those of N0”
Claim · model-written summary
NIE of N180 was significantly higher than that of N210.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield of Maize”
e6“the NIE of N180 was significantly higher than that of N210”
Claim · model-written summary
The partial factor productivity of nitrogen (PFPN) did not differ significantly between nitrogen application rates.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield of Maize”
e4“The nitrogen use efficiency (NUE), nitrogen recovery efficiency (NRE), nitrogen internal efficiency (NIE), and partial factor productivity of nitrogen (PFPN) under different nitrogen (N) application rates”
e7“the difference from PFPN was not significant”
The same questions in other papers
nitrogen · yield · Zea mays (maize)Positive and negative results
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