Abstract
Abstract A comparison was made of rice ( Oryza saliva ) grown under continuously submerged conditions and under alternately dry and flooded conditions in several greenhouse and field experiments. With nitrogen‐deficient soils, alternately dry and submerged conditions caused an appreciable decrease in growth, yield, and nitrogen uptake. With soils high in available nitrogen as a result of being in permanent pasture for several years, drying and reflooding resulted in a yield increase. Drying and reflooding apparently resulted in a loss of soil nitrogen which was detrimental in the nitrogen‐deficient soils and beneficial in the soils that had been in pasture.
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Claims 5
Claim · model-written summary
Alternate drying and submergence decreased rice growth on nitrogen-deficient soils.
- Taxon
- Rice
Oryza sativat0 - Treatment
- alternately dry and submerged conditionse0
- Outcome
- growthe0
- Direction
- decreasee0
- Comparator
- Continuous Submergencet0
- Setting
- nitrogen‐deficient soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With nitrogen‐deficient soils, alternately dry and submerged conditions caused an appreciable decrease in growth, yield, and nitrogen uptake.”
t0“Continuous Submergence Versus Alternate Flooding and Drying on Growth, Yield, and Nitrogen uptake of Rice”
Claim · model-written summary
Alternate drying and submergence decreased rice yield on nitrogen-deficient soils.
- Taxon
- RiceOryza sativat0
- Treatment
- alternately dry and submerged conditionse0
- Outcome
- yielde0
- Direction
- decreasee0
- Comparator
- Continuous Submergencet0
- Setting
- nitrogen‐deficient soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With nitrogen‐deficient soils, alternately dry and submerged conditions caused an appreciable decrease in growth, yield, and nitrogen uptake.”
t0“Continuous Submergence Versus Alternate Flooding and Drying on Growth, Yield, and Nitrogen uptake of Rice”
Claim · model-written summary
Alternate drying and submergence decreased rice nitrogen uptake on nitrogen-deficient soils.
- Taxon
- RiceOryza sativat0
- Treatment
- alternately dry and submerged conditionse0
- Outcome
- nitrogen uptakee0
- Direction
- decreasee0
- Comparator
- Continuous Submergencet0
- Setting
- nitrogen‐deficient soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With nitrogen‐deficient soils, alternately dry and submerged conditions caused an appreciable decrease in growth, yield, and nitrogen uptake.”
t0“Continuous Submergence Versus Alternate Flooding and Drying on Growth, Yield, and Nitrogen uptake of Rice”
Claim · model-written summary
Drying and reflooding increased rice yield in soils high in available nitrogen after permanent pasture.
- Taxon
- RiceOryza sativat0
- Treatment
- drying and refloodinge0
- Outcome
- yielde0
- Direction
- increasee0
- Comparator
- Continuous Submergencet0
- Setting
- soils high in available nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With soils high in available nitrogen as a result of being in permanent pasture for several years, drying and reflooding resulted in a yield increase.”
t0“Continuous Submergence Versus Alternate Flooding and Drying on Growth, Yield, and Nitrogen uptake of Rice”
Claim · model-written summary
Drying and reflooding apparently caused soil nitrogen loss, detrimental in nitrogen-deficient soils and beneficial in former pasture soils.
- Taxon
- riceOryza sativat0
- Treatment
- Drying and refloodinge0
- Outcome
- loss of soil nitrogene0
- Direction
- losse0
- Qualifier
- apparentlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drying and reflooding apparently resulted in a loss of soil nitrogen which was detrimental in the nitrogen‐deficient soils and beneficial in the soils that had been in pasture.”
t0“Rice”
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See all 286 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.