Abstract
Synergizing iron nutrition and rice quality is essential for the development of integrated high-quality rice. In this study, a two-year field experiment was conducted to investigate the influence of ferric oxide nanoparticles (Fe2O3 NPs) foliar spraying on rice yield, quality, and iron bioavailability, with spraying water as the control (CK). Our results demonstrate that Fe2O3 NPs foliar application increase grain yield by 1.22–3.97% for the improved filled grain rate and 1000-grain weight, essentially attributed to improved net photosynthetic rate and SPAD value after heading. In addition, Fe2O3 NPs application achieved a higher rate of brown rice, polished rice, and head rice, and decreased chalkiness grain rate and chalkiness degree. Rice taste value treated with Fe2O3 NPs application was notably increased by 2.75–9.43% compared to CK, respectively, which is also reflected in the superior breakdown value (5.85–15.18%) and inferior setback value (12.38–28.19%). Meanwhile, foliar spraying Fe2O3 NPs significantly increased the iron content (16.97–58.74% and 26.48–94.01%) and proportion (2.90–5.35% and 13.10–26.44%), while they decreased the molar ratio of phytate to Fe (19.70–33.67% and 31.55–45.77%) in brown rice and polished rice, increasing iron bioavailability. Our findings indicate that Fe2O3 NPs can be effectively applied as a foliar fertilizer to enhance rice yield, quality, and iron nutrition.
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Claims 3
Claim · model-written summary
Fe2O3 NPs increased rice grain yield by 1.22–3.97% over water spraying.
- Taxon
- Rice
Oryza sativat0 - Treatment
- Fe2O3 NPs foliar applicatione0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 1.22–3.97%e0
- Comparator
- spraying watere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe2O3 NPs foliar application increase grain yield by 1.22–3.97%”
e1“with spraying water as the control (CK)”
t0“Rice (Oryza sativa L.) Grains”
Claim · model-written summary
Fe2O3 NPs increased rice taste value by 2.75–9.43% versus CK.
- Taxon
- RiceOryza sativae0
- Treatment
- Fe2O3 NPs applicatione0
- Outcome
- taste valuee0
- Direction
- increasede0
- Value
- 2.75–9.43%e0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice taste value treated with Fe2O3 NPs application was notably increased by 2.75–9.43% compared to CK”
Claim · model-written summary
The authors recommend Fe2O3 NPs as a foliar fertilizer for rice yield, quality and iron nutrition.
- Taxon
- RiceOryza sativat0
- Outcome
- foliar fertilizer to enhance rice yield, quality, and iron nutritione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe2O3 NPs can be effectively applied as a foliar fertilizer to enhance rice yield, quality, and iron nutrition.”
t0“Rice (Oryza sativa L.) Grains”
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