Abstract
BACKGROUND: Foliar sprays of iron (Fe) and zinc (Zn) fertilisers are known to be an effective way to improve Fe and Zn concentrations in rice grain. However, results can differ significantly among different rice cultivars and/or types of foliar fertiliser. In this study, several Fe-rich rice cultivars were used to identify an effective foliar fertiliser for optimal Fe and Zn enrichment of rice grain. RESULTS: Foliar Fe amino acid (Fe-AA) fertiliser significantly improved the Fe concentration in brown rice of most cultivars. Compared with the control, the average Fe concentration in all tested cultivars was increased by 14.5%. The average Fe concentration was increased by 32.5% when 1% (w/v) nicotianamine (NA) was added to Fe-AA, while the average Zn concentration was increased by 42.4% when 0.5% (w/v) ZnSO₄ · 7H₂O was added to Fe-AA. CONCLUSION: The results suggested that NA at a suitable concentration added to Fe-AA fertiliser could accelerate Fe accumulation in rice grain. A relatively low concentration of ZnSO₄ · 7H₂O added to Fe-AA significantly increased Fe and Zn accumulation in rice grain. The study identified some useful foliar fertilisers for enhancing the levels of Fe and Zn in selected Fe-rich rice cultivars.
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 5
Claim · model-written summary
Foliar Fe amino acid fertiliser significantly improved the Fe concentration in brown rice of most cultivars.
- Taxon
- rice plants
Oryza sativat0 - Organ / stage
- brown ricee1
- Treatment
- Foliar Fe amino acid (Fe-AA) fertilisere1
- Outcome
- Fe concentratione1
- Direction
- improvede1
- Qualifier
- of most cultivarse1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice plants”
e1“Foliar Fe amino acid (Fe-AA) fertiliser significantly improved the Fe concentration in brown rice of most cultivars”
e2“Compared with the control, the average Fe concentration in all tested cultivars was increased by 14.5%”
Claim · model-written summary
Fe-AA increased the average Fe concentration in all tested cultivars by 14.5% compared with the control.
- Taxon
- rice plantsOryza sativat0
- Treatment
- Fe-AAe1
- Outcome
- average Fe concentratione2
- Direction
- increasede2
- Value
- 14.5%e2
- Qualifier
- in all tested cultivarse2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice plants”
e1“Foliar Fe amino acid (Fe-AA) fertiliser significantly improved the Fe concentration in brown rice of most cultivars”
e2“Compared with the control, the average Fe concentration in all tested cultivars was increased by 14.5%”
Claim · model-written summary
Adding 1% (w/v) nicotianamine to Fe-AA increased the average Fe concentration by 32.5%.
- Taxon
- rice plantsOryza sativat0
- Treatment
- 1% (w/v) nicotianamine (NA) was added to Fe-AAe3
- Outcome
- average Fe concentratione3
- Direction
- increasede3
- Value
- 32.5%e3
- Comparator
- Fe-AAe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice plants”
e3“The average Fe concentration was increased by 32.5% when 1% (w/v) nicotianamine (NA) was added to Fe-AA”
Claim · model-written summary
Adding 0.5% (w/v) ZnSO4·7H2O to Fe-AA increased the average Zn concentration by 42.4%.
- Taxon
- rice plantsOryza sativat0
- Treatment
- 0.5% (w/v) ZnSO₄ · 7H₂O was added to Fe-AAe4
- Outcome
- average Zn concentratione4
- Direction
- increasede4
- Value
- 42.4%e4
- Comparator
- Fe-AAe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice plants”
e4“while the average Zn concentration was increased by 42.4% when 0.5% (w/v) ZnSO₄ · 7H₂O was added to Fe-AA”
Claim · model-written summary
A relatively low concentration of ZnSO4·7H2O added to Fe-AA significantly increased Fe and Zn accumulation in rice grain.
- Taxon
- rice plantsOryza sativat0
- Organ / stage
- rice graine5
- Treatment
- A relatively low concentration of ZnSO₄ · 7H₂O added to Fe-AAe5
- Outcome
- Fe and Zn accumulatione5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice plants”
e5“A relatively low concentration of ZnSO₄ · 7H₂O added to Fe-AA significantly increased Fe and Zn accumulation in rice grain”
The same questions in other papers
amino acid · nutrient: content · Oryza sativa (rice)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- positive
2 papers more in this group
See all 6 papers →zinc sulfate · nutrient: content · Oryza sativa (rice)Positive and negative results
59 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative
- positive
- no effect
- no effect
61 papers more in this group
See all 65 papers →iron atom · nutrient: content · Oryza sativa (rice)Positive and negative results
63 papers in the same direction as this paper · 24 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- positive
85 papers more in this group
See all 89 papers →nicotianamine · nutrient: content · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- positive
- positive
application · nutrient: content · Oryza sativa (rice)Positive and negative results
211 papers in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
218 papers more in this group
See all 222 papers →fertilization · nutrient: content · Oryza sativa (rice)Positive and negative results
931 papers in the same direction as this paper · 56 in the opposite direction · 5 reporting no difference from an alternative
- negative
- no effect
- no effect
989 papers more in this group
See all 993 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.