Abstract
This experiment was conducted to investigate the effects of different types of nitrogen fertilizer(NF) applied in summer maize season on yield,water and nitrogen utilization of summer maize and its aftercrop winter wheat in north China plain.The main results are as follows:(1) Yield,water consumption and water use efficiency(WUE) were increased by the increment of N application rate,while N use efficiency(NUE) was decreased.WUE and NUE of summer maize were affected by type of NF,WUE of compound fertilizer treatment was greater and NUE was improved by applying coated urea and compound fertilizer as compared to urea application,and clear genotype differences on WUE and NUE were observed,WUE of Zhengdan958 and NUE of Nongda108 were greater.(2) N physiological efficiency was decreased but NF efficiency was heightened in winter wheat by N application in summer maize,at the same time,yield and WUE of winter wheat were affected obviously,but the effects existed differences between different cultivars,types of NF and N rates.Evident aftereffect of NF applied in summer maize was observed in winter wheat,but the values were different among different types of NF.In common,aftereffects of urea treatments and 180 kg/hm2 treatment of coated urea and compound fertilizer were bigger.(3) In summer maize-winter wheat rotation system,total yield,total N accumulation amount,total water consumption,WUE and NUE were affected evidently by types of NF and N rates in summer maize season,and they also were affected by genotype of summer maize.
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Claims 11
Claim · model-written summary
Increasing nitrogen rate increased maize yield, water consumption and water use efficiency.
- Treatment
- increment of N application ratee0
- Outcome
- Yield,water consumption and water use efficiency(WUE)e0
- Direction
- increasede0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield,water consumption and water use efficiency(WUE) were increased by the increment of N application rate”
e1“summer maize-winter wheat rotation system”
Claim · model-written summary
Increasing nitrogen rate decreased nitrogen use efficiency.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield,water consumption and water use efficiency(WUE) were increased by the increment of N application rate,while N use efficiency(NUE) was decreased.”
e1“summer maize-winter wheat rotation system”
Claim · model-written summary
Compound fertilizer yielded greater maize water use efficiency.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WUE of compound fertilizer treatment was greater”
e1“summer maize-winter wheat rotation system”
Claim · model-written summary
Coated urea improved maize nitrogen use efficiency compared with urea.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NUE was improved by applying coated urea and compound fertilizer as compared to urea application”
e1“summer maize-winter wheat rotation system”
Claim · model-written summary
Compound fertilizer improved maize nitrogen use efficiency compared with urea.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NUE was improved by applying coated urea and compound fertilizer as compared to urea application”
e1“summer maize-winter wheat rotation system”
Claim · model-written summary
Zhengdan958 had greater maize water use efficiency.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WUE of Zhengdan958 and NUE of Nongda108 were greater.”
e1“summer maize-winter wheat rotation system”
Claim · model-written summary
Nongda108 had greater maize nitrogen use efficiency.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WUE of Zhengdan958 and NUE of Nongda108 were greater.”
e1“summer maize-winter wheat rotation system”
Claim · model-written summary
Nitrogen fertilizer in maize decreased physiological nitrogen efficiency in subsequent winter wheat.
- Taxon
- winter wheat
Triticum aestivume0e1 - Treatment
- N application in summer maizee0
- Outcome
- N physiological efficiencye0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N physiological efficiency was decreased but NF efficiency was heightened in winter wheat by N application in summer maize”
e1“summer maize-winter wheat rotation system”
Claim · model-written summary
Nitrogen fertilizer in maize increased fertilizer nitrogen efficiency in subsequent winter wheat.
- Taxon
- winter wheatTriticum aestivume0e1
- Treatment
- N application in summer maizee0
- Outcome
- NF efficiencye0
- Direction
- heightenede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NF efficiency was heightened in winter wheat by N application in summer maize”
e1“summer maize-winter wheat rotation system”
Claim · model-written summary
Maize season nitrogen affected wheat yield and water use efficiency, varying by cultivar, fertilizer and rate.
- Taxon
- winter wheatTriticum aestivume0e1
- Treatment
- types of NF and N ratese0
- Outcome
- yield and WUEe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield and WUE of winter wheat were affected obviously,but the effects existed differences between different cultivars,types of NF and N rates.”
e1“summer maize-winter wheat rotation system”
Claim · model-written summary
Nitrogen fertilizer type and rate affected total rotation yield, nitrogen accumulation, water use, WUE and NUE.
- Treatment
- types of NF and N rates in summer maize seasone0
- Outcome
- total yield,total N accumulation amount,total water consumption,WUE and NUEe0
Not reportedComparatorDirection
Verbatim
e0“total yield,total N accumulation amount,total water consumption,WUE and NUE were affected evidently by types of NF and N rates in summer maize season”
e1“summer maize-winter wheat rotation system”
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