Abstract
Based on N application rates and soil tillage modes experiment,yield of spring maize and NO3——N accumulation in soil profile were studied in the northwest of Hebei Province.The results showed that compared with conventional tillage,no-tillage mode had no significant effect on yield of spring maize,through analyzing function curve of N rate and yield of spring maize under no-tillage 1,no-tillage 2 and conventional tillage modes,and the proper rate of N of spring maize was 192～209 kg/hm2,192～212 kg/hm2 and 196～216 kg/hm2 respectively.With the increase of N rate,NO3——N accumulation in 0～90 cm and 90～80 soil layers were also significantly increased by three treatments.NO3——N accumulation in 0～90 cm soil layer under no-tillage mode was higher than that under conventional tillage in whole sampling period, and this trend increased with increase of N application rate.After maize was harvested,NO3——N accumulation in 0～90 cm soil layer under no-tillage mode was significantly higher than that under conventional tillage mode,while NO3——N accumulation in 90～180 cm soil layer under conventional tillage mode was significantly higher than that under no-tillage mode,this indicated that more N nutrient accumulated in 0～90 cm soil layer under no-tillage mode and less leached into groundwater for environment pollution.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
No tillage had no significant yield effect against conventional tillage.
- Treatment
- no-tillage modee0
- Outcome
- yield of spring maizee0
- Direction
- no significant effecte0
- Comparator
- conventional tillagee0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with conventional tillage,no-tillage mode had no significant effect on yield of spring maize”
Claim · model-written summary
The proper nitrogen rate under no-tillage 1 was 192～209 kg/hm2.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“proper rate of N of spring maize was 192～209 kg/hm2,192～212 kg/hm2 and 196～216 kg/hm2 respectively”
e1“no-tillage 1,no-tillage 2 and conventional tillage modes”
Claim · model-written summary
The proper nitrogen rate under no-tillage 2 was 192～212 kg/hm2.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“proper rate of N of spring maize was 192～209 kg/hm2,192～212 kg/hm2 and 196～216 kg/hm2 respectively”
e1“no-tillage 1,no-tillage 2 and conventional tillage modes”
Claim · model-written summary
The proper nitrogen rate under conventional tillage was 196～216 kg/hm2.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“proper rate of N of spring maize was 192～209 kg/hm2,192～212 kg/hm2 and 196～216 kg/hm2 respectively”
e1“no-tillage 1,no-tillage 2 and conventional tillage modes”
Claim · model-written summary
Increasing nitrogen rate significantly increased soil nitrate accumulation in both reported layers.
- Treatment
- increase of N ratee0
- Outcome
- NO3——N accumulation in 0～90 cm and 90～80 soil layerse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of N rate,NO3——N accumulation in 0～90 cm and 90～80 soil layers were also significantly increased by three treatments”
e1“spring maize”
Claim · model-written summary
No tillage had higher 0–90 cm nitrate accumulation than conventional tillage throughout sampling.
- Treatment
- no-tillage modee0
- Outcome
- NO3——N accumulation in 0～90 cm soil layere0
- Direction
- highere0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NO3——N accumulation in 0～90 cm soil layer under no-tillage mode was higher than that under conventional tillage in whole sampling period”
e1“spring maize”
Claim · model-written summary
Higher nitrogen rate strengthened the no tillage nitrate accumulation trend.
- Treatment
- increase of N application ratee0
- Outcome
- NO3——N accumulation in 0～90 cm soil layere1
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this trend increased with increase of N application rate”
e1“NO3——N accumulation in 0～90 cm soil layer under no-tillage mode was higher than that under conventional tillage”
e2“spring maize”
Claim · model-written summary
After harvest no tillage had significantly higher 0–90 cm nitrate than conventional tillage.
- Treatment
- no-tillage modee0
- Outcome
- NO3——N accumulation in 0～90 cm soil layere0
- Direction
- highere0
- Comparator
- conventional tillage modee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After maize was harvested,NO3——N accumulation in 0～90 cm soil layer under no-tillage mode was significantly higher than that under conventional tillage mode”
e1“spring maize”
Claim · model-written summary
After harvest conventional tillage had significantly higher 90–180 cm nitrate than no tillage.
- Treatment
- conventional tillage modee0
- Outcome
- NO3——N accumulation in 90～180 cm soil layere0
- Direction
- highere0
- Comparator
- no-tillage modee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NO3——N accumulation in 90～180 cm soil layer under conventional tillage mode was significantly higher than that under no-tillage mode”
e1“spring maize”
Claim · model-written summary
Authors inferred no tillage retained more nitrogen near the surface and reduced groundwater leaching.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“more N nutrient accumulated in 0～90 cm soil layer under no-tillage mode and less leached into groundwater for environment pollution”
e1“spring maize”
The same questions in other papers
tillage · yield · Zea mays (maize)Positive and negative results
286 papers in the same direction as this paper · 812 reporting no difference from an alternative
- positive
- positive
- positive
1,095 papers more in this group
See all 1,099 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.