Abstract
BACKGROUND: Rice growers are interested in new technologies that can reduce input costs while maintaining high field yields and grain quality. The bed-and-furrow (BF) water management system benefits farmers through decreased water usage, labor, and fuel as compared to standard flood management. Fertilizer inputs can be reduced by producing rice in rotation with soybeans, a nitrogen-fixing crop, and with the use of slow-release fertilizers that reduce nitrogen volatilization and run-off. However, the influence of these cultural management practices on rice physicochemical properties is unknown. Our objective was to evaluate the influence of nitrogen fertilizer source, water management system, and crop rotation on rice grain quality. RESULTS: Grain protein concentration was lower in a continuous rice production system than in a rice-soybean rotation. Neither amylose content nor gelatinization temperature was altered by fertilizer source, crop rotation, or water management. BF water management decreased peak and breakdown viscosities relative to a flooded system. Peak and final paste viscosities were decreased by all fertilizer sources, whereas, crop rotation had no influence on the Rapid Visco Analyser profile. CONCLUSION: Sustainable production systems that decrease water use and utilize crop rotations and slow-release fertilizers have no major impact on rice physicochemical properties.
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Claims 5
Claim · model-written summary
Continuous rice production had lower grain protein concentration than rice-soybean rotation.
- Taxon
- rice
Oryza sativae1 - Treatment
- continuous rice production systeme1
- Outcome
- Grain protein concentratione1
- Direction
- lowere1
- Comparator
- rice-soybean rotatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“physicochemical properties of rice grain quality”
e1“Grain protein concentration was lower in a continuous rice production system than in a rice-soybean rotation”
Claim · model-written summary
Amylose content and gelatinization temperature of rice were not altered by fertilizer source, crop rotation or water management.
- Taxon
- riceOryza sativat0
- Treatment
- fertilizer source, crop rotation, or water managemente2
- Outcome
- amylose content nor gelatinization temperaturee2
- Direction
- alterede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“physicochemical properties of rice grain quality”
e2“Neither amylose content nor gelatinization temperature was altered by fertilizer source, crop rotation, or water management”
Claim · model-written summary
BF water management decreased peak and breakdown viscosities of rice relative to a flooded system.
- Taxon
- riceOryza sativat0
- Treatment
- BF water managemente3
- Outcome
- peak and breakdown viscositiese3
- Direction
- decreasede3
- Comparator
- flooded systeme3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“physicochemical properties of rice grain quality”
e3“BF water management decreased peak and breakdown viscosities relative to a flooded system”
Claim · model-written summary
Peak and final paste viscosities of rice were decreased by all fertilizer sources.
- Taxon
- riceOryza sativat0
- Treatment
- all fertilizer sourcese4
- Outcome
- Peak and final paste viscositiese4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“physicochemical properties of rice grain quality”
e4“Peak and final paste viscosities were decreased by all fertilizer sources”
Claim · model-written summary
Crop rotation had no influence on the Rapid Visco Analyser profile of rice.
- Taxon
- riceOryza sativat0
- Treatment
- crop rotatione5
- Outcome
- Rapid Visco Analyser profilee5
- Direction
- no influencee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“physicochemical properties of rice grain quality”
e5“crop rotation had no influence on the Rapid Visco Analyser profile”
The same questions in other papers
fertilization · quality: sugar starch · Oryza sativa (rice)Results differ
16 papers in the same direction as this paper · 44 in the opposite direction
- no effect
- positive
- positive
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See all 61 papers →rotation · quality: sugar starch · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
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.