Abstract
Abstract Non‐flooded rice cultivation has been proven to be an effective measure to reduce water consumption in drought areas of Southeast China. However, rice cultivation under non‐flooded conditions leads to less stable productivity and lower grain yield. The objectives of this study were (1) to compare crop performance and yields among flooded and non‐flooded rice over several seasons, (2) to identify the yield performed in non‐flooded rice systems over seasons and whether the options which included no‐tillage, straw mulching and wet‐dry rotation system can narrow the grain yield gap between non‐flooded and traditional flooded condition. The results showed the difference between flooded rice (F) and non‐flooded rice (NF) with straw mulching was much lower than the difference between F and NF without straw mulching. Within late seasons, the difference of aboveground total biomass between non‐flooded rice without mulching and flooded rice gradually widened as the number of cropping seasons increased. Compared with the non‐flooded rice without mulching, straw mulching can reduce the decline of aboveground total biomass and grain yield. The yield difference between F and NF treatments became smaller in no‐tillage plots than complete tillage plots. It suggested that no‐tillage can keep the crop production more stable. In comparison with continuously non‐flooded cultivation, our study indicated that the wet‐dry rotation system can reduce the yield decline under non‐flooded condition.
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Claims 7
Claim · model-written summary
Straw mulching narrowed the yield difference between flooded and non-flooded rice.
- Taxon
- rice
Oryza sativae0 - Treatment
- straw mulchinge0
- Outcome
- difference between flooded rice (F) and non‐flooded rice (NF)e0
- Direction
- much lowere0
- Comparator
- without straw mulchinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the difference between flooded rice (F) and non‐flooded rice (NF) with straw mulching was much lower than the difference between F and NF without straw mulching”
Claim · model-written summary
The aboveground biomass gap between unmulched non-flooded and flooded rice widened across late cropping seasons.
- Taxon
- riceOryza sativae0
- Outcome
- difference of aboveground total biomasse0
- Direction
- gradually widenede0
- Qualifier
- as the number of cropping seasons increasede0
- Comparator
- flooded ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Within late seasons, the difference of aboveground total biomass between non‐flooded rice without mulching and flooded rice gradually widened as the number of cropping seasons increased”
Claim · model-written summary
Straw mulching reduced the decline in aboveground total biomass relative to non-flooded rice without mulching.
- Taxon
- riceOryza sativae0
- Treatment
- straw mulchinge0
- Outcome
- aboveground total biomasse0
- Direction
- reduce the declinee0
- Comparator
- non‐flooded rice without mulchinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the non‐flooded rice without mulching, straw mulching can reduce the decline of aboveground total biomass and grain yield”
Claim · model-written summary
Straw mulching reduced the decline in grain yield relative to non-flooded rice without mulching.
- Taxon
- riceOryza sativae0
- Treatment
- straw mulchinge0
- Outcome
- grain yielde0
- Direction
- reduce the declinee0
- Comparator
- non‐flooded rice without mulchinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the non‐flooded rice without mulching, straw mulching can reduce the decline of aboveground total biomass and grain yield”
Claim · model-written summary
No-tillage narrowed the yield difference between flooded and non-flooded rice compared with complete tillage.
- Taxon
- RiceOryza sativat0
- Treatment
- no‐tillage plotse0
- Outcome
- yield difference between F and NF treatmentse0
- Direction
- smallere0
- Comparator
- complete tillage plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield difference between F and NF treatments became smaller in no‐tillage plots than complete tillage plots”
t0“Rice”
Claim · model-written summary
The authors interpreted no-tillage as stabilizing rice production.
- Taxon
- RiceOryza sativat0
- Outcome
- crop production more stablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no‐tillage can keep the crop production more stable”
t0“Rice”
Claim · model-written summary
Wet-dry rotation reduced non-flooded rice yield decline relative to continuous non-flooded cultivation.
- Taxon
- RiceOryza sativat0
- Treatment
- wet‐dry rotation systeme0
- Outcome
- yield declinee0
- Direction
- reducee0
- Comparator
- continuously non‐flooded cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In comparison with continuously non‐flooded cultivation, our study indicated that the wet‐dry rotation system can reduce the yield decline under non‐flooded condition”
t0“Rice”
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