Abstract
Abstract Zinc (Zn) deficiency constitutes a health challenge particularly in South and Southeast Asia and Sub-Saharan Africa. Application of Zn fertilizers to crops, such as oat, offers a rapid solution to the problem. The purpose of this study was to evaluate the feasibility of oat biofortification through Zn fertilization, without causing Zn phytotoxicity to the crop. A field experiment was performed in Valdivia, southern Chile, in which oat (Avena sativa L.) grown in a Duric Hapludand soil was fertilized with zinc sulfate (ZnSO4·7 H2O) with the following application rates: 0, 14, 43, and 85 kg Zn ha-1, equivalent to 0, 8, 24, and 47 mg Zn kg-1 soil. Diethylenetriaminepentaacetic acid (DTPA) solution was used to extract and measure the availability of Zn. The application of Zn at increased DTPA-Zn concentration considerably from 1.3 to 29 mg kg-1 soil and Zn concentration in oat grains from 22 to 45 mg kg-1. The application of Zn had no significant effect on grain yield. This study has practical agronomical implications by demonstrating that DTPA-Zn content of about 20 mg kg-1 is optimal for increasing Zn content in oat grains grown in Andisols. This study demonstrates the technical feasibility of biofortifying crops with Zn grown in Andisols.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 4
Claim · model-written summary
Zn fertilization increased DTPA-extractable soil Zn from 1.3 to 29 mg kg-1.
- Taxon
- oat
Avena sativae0 - Treatment
- application of Zne0
- Outcome
- DTPA-Zn concentratione0
- Direction
- increasede0
- Value
- 29 mg kg-1 soile0
- Qualifier
- from 1.3e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of Zn at increased DTPA-Zn concentration considerably from 1.3 to 29 mg kg-1 soil and Zn concentration in oat grains from 22 to 45 mg kg-1.”
Claim · model-written summary
Zn fertilization increased oat grain zinc concentration from 22 to 45 mg kg-1.
- Taxon
- oatAvena sativae0
- Treatment
- application of Zne0
- Outcome
- Zn concentration in oat grainse0
- Direction
- increasee0
- Value
- 45 mg kg-1e0
- Qualifier
- from 22e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of Zn at increased DTPA-Zn concentration considerably from 1.3 to 29 mg kg-1 soil and Zn concentration in oat grains from 22 to 45 mg kg-1.”
Claim · model-written summary
Zn application had no significant effect on oat grain yield.
Not reportedTaxonComparator
Verbatim
e0“The application of Zn had no significant effect on grain yield.”
t0“oat”
Claim · model-written summary
About 20 mg kg-1 DTPA-Zn was judged optimal for raising oat grain zinc in Andisols.
- Taxon
- oatAvena sativae0
- Outcome
- increasing Zn content in oat grainse0
- Value
- about 20 mg kg-1e0
- Setting
- Andisolse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DTPA-Zn content of about 20 mg kg-1 is optimal for increasing Zn content in oat grains grown in Andisols.”
The same questions in other papers
zinc atom · yield · Avena sativa (oats)Results differ
3 papers in the same direction as this paper · 7 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →zinc atom · molecular: metabolites · Avena sativa (oats)Positive and negative results
1 in the opposite direction
- negative
zinc atom · nutrient: content · Avena sativa (oats)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.