Paper · 2021 · Asian Journal of Agriculture and Biology

Biofortification of maize with zinc and iron not only enhances crop growthbut also improves grain quality

Zunaira Anwar; Zyma Basharat; Muhammad Bilal Hafeez; et al.

9
claims
16
verbatim quotes
37
citations
2
research areas
✓
Open access · cc-by

Abstract

Hidden hunger is an emerging challenge for scientists, especially connected to the agriculture sector because over two billion people are facing it globally. This issue is more common in developing countries which have less access to a diverse diet due to their low income. Different potential practices are introduced to minimize the pressure of malnutrition but agronomic biofortification is being considered best practice to improve the contents of micronutrient in grains. A field based study was executed to explore the impact of zinc sulphate (ZnSO 4 ) and iron sulphate (FeSO 4 ) on productivity and grain quality of maize crop. Sole and combined application of ZnSO 4 and FeSO 4 either via soil or/and plant foliage not only enhanced the yield attributes of maize crop but grain quality was also improved. Soil supplementation of ZnSO 4 (10 kg ha -1 ) produced maximum plant height and cob weight. Combined treatment of ZnSO 4 (10 kg ha -1 ) and FeSO 4 (12 kg ha -1 ) through soil produced more grains per cob, 1000-grain weight, biological and grain yields. Foliar applied 0.1% ZnSO 4 and 0.3% FeSO 4 produced highest chlorophyll contents. Foliar treatment of 0.1% ZnSO 4 and 0.3% FeSO 4 improved the concentration of zinc and iron in grains, respectively. Combined treatment of 10 kg ha -1 of ZnSO 4 and 12 kg ha -1 of FeSO 4 through soil improves the yield attributes while foliar spray of 0.1% ZnSO 4 and 0.3% FeSO 4 enhances quality parameters. Overall, foliar spray approach is more applicable regarding nutrients availability for optimum development and growth of crop and improved grain quality.

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 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sole and combined zinc and iron sulfate application improved maize yield attributes.

Taxon
maizeZea mayse0
Treatment
Sole and combined application of ZnSO 4 and FeSO 4e0
Outcome
yield attributese0
Direction
enhancede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Sole and combined application of ZnSO 4 and FeSO 4 either via soil or/and plant foliage not only enhanced the yield attributes of maize crop”

✓ located verbatim in the source · abstract, characters 636–776 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sole and combined zinc and iron sulfate application improved maize grain quality.

Taxon
maizeZea mayse0
Treatment
Sole and combined application of ZnSO 4 and FeSO 4e0
Outcome
grain qualitye0
Direction
improvede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Sole and combined application of ZnSO 4 and FeSO 4 either via soil or/and plant foliage not only enhanced the yield attributes of maize crop but grain quality was also improved”

✓ located verbatim in the source · abstract, characters 636–812 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil zinc sulfate at 10 kg ha -1 produced maximum maize plant height and cob weight.

Taxon
maizeZea mayst0
Treatment
ZnSO 4 (10 kg ha -1 )e0
Outcome
plant height and cob weighte0
Direction
maximume0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Soil supplementation of ZnSO 4 (10 kg ha -1 ) produced maximum plant height and cob weight”

✓ located verbatim in the source · abstract, characters 814–904 · show in text ↑
t0

“maize”

✓ located verbatim in the source · title, characters 20–25 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined soil zinc and iron sulfate produced more grains per cob and greater 1000-grain weight.

Taxon
maizeZea mayst0
Treatment
Combined treatment of ZnSO 4 (10 kg ha -1 ) and FeSO 4 (12 kg ha -1 ) through soile0
Outcome
grains per cob, 1000-grain weighte0
Direction
moree0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Combined treatment of ZnSO 4 (10 kg ha -1 ) and FeSO 4 (12 kg ha -1 ) through soil produced more grains per cob, 1000-grain weight, biological and grain yields”

✓ located verbatim in the source · abstract, characters 906–1065 · show in text ↑
t0

“maize”

✓ located verbatim in the source · title, characters 20–25 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined soil zinc and iron sulfate produced greater biological and grain yields.

Taxon
maizeZea mayst0
Treatment
Combined treatment of ZnSO 4 (10 kg ha -1 ) and FeSO 4 (12 kg ha -1 ) through soile0
Outcome
biological and grain yieldse0
Direction
moree0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Combined treatment of ZnSO 4 (10 kg ha -1 ) and FeSO 4 (12 kg ha -1 ) through soil produced more grains per cob, 1000-grain weight, biological and grain yields”

✓ located verbatim in the source · abstract, characters 906–1065 · show in text ↑
t0

“maize”

✓ located verbatim in the source · title, characters 20–25 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar 0.1% zinc sulfate with 0.3% iron sulfate produced the highest chlorophyll content.

Taxon
maizeZea mayst0
Treatment
0.1% ZnSO 4 and 0.3% FeSO 4e0
Outcome
chlorophyll contentse0
Direction
higheste0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar applied 0.1% ZnSO 4 and 0.3% FeSO 4 produced highest chlorophyll contents”

✓ located verbatim in the source · abstract, characters 1067–1147 · show in text ↑
t0

“maize”

✓ located verbatim in the source · title, characters 20–25 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar 0.1% zinc sulfate improved grain zinc concentration.

Taxon
maizeZea mayst0
Treatment
0.1% ZnSO 4e0
Outcome
concentration of zince0
Direction
improvede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar treatment of 0.1% ZnSO 4 and 0.3% FeSO 4 improved the concentration of zinc and iron in grains, respectively”

✓ located verbatim in the source · abstract, characters 1149–1264 · show in text ↑
t0

“maize”

✓ located verbatim in the source · title, characters 20–25 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar 0.3% iron sulfate improved grain iron concentration.

Taxon
maizeZea mayst0
Treatment
0.3% FeSO 4e0
Outcome
iron in grainse0
Direction
improvede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar treatment of 0.1% ZnSO 4 and 0.3% FeSO 4 improved the concentration of zinc and iron in grains, respectively”

✓ located verbatim in the source · abstract, characters 1149–1264 · show in text ↑
t0

“maize”

✓ located verbatim in the source · title, characters 20–25 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors regard foliar spraying as more applicable for nutrient availability, crop growth and grain quality.

Taxon
maizeZea mayst0
Outcome
foliar spray approache0
Direction
more applicablee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Overall, foliar spray approach is more applicable regarding nutrients availability for optimum development and growth of crop and improved grain quality”

✓ located verbatim in the source · abstract, characters 1458–1610 · show in text ↑
t0

“maize”

✓ located verbatim in the source · title, characters 20–25 · show in text ↑

zinc sulfate · yield · Zea mays (maize)Results differ

128 papers: 124 positive, 4 negative or no effect

123 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

124 papers more in this group

See all 128 papers →

zinc sulfate · molecular: metabolites · Zea mays (maize)Positive and negative results

10 papers: 7 positive, 3 negative or no effect

6 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

6 papers more in this group

See all 10 papers →

iron(2+) sulfate (anhydrous) · nutrient: content · Zea mays (maize)Positive and negative results

12 papers: 11 positive, 1 negative or no effect

10 papers in the same direction as this paper · 1 reporting no difference from an alternative

  1. no effect
  2. positive
  3. positive

8 papers more in this group

See all 12 papers →

iron(2+) sulfate (anhydrous) · yield · Zea mays (maize)Positive and negative results

23 papers: 22 positive, 1 negative or no effect

21 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

19 papers more in this group

See all 23 papers →

zinc sulfate · quality: grain · Zea mays (maize)Results agree

10 papers: 10 positive, 0 negative or no effect

9 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

6 papers more in this group

See all 10 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.