Paper · 2024 · The Indian Journal of Agricultural Sciences

Assessment of zinc sources and levels for urea coating to achieve higher productivity and soil fertility in spring maize (Zea mays)

SEEMA SEPAT; HARMINDER SINGH; A K SINGH

6
claims
12
verbatim quotes
3
citations
2
research areas
✓
Open access · cc-by-nc-sa

Abstract

An experiment was conducted during 2021 and 2022 at the research farm of ICAR-Indian Institute of Maize Research, Ludhiana, Punjab to study the efficacy of zinc oxide and zinc sulphate for urea coating to achieve higher productivity in maize (Zea mays L.). Experiment was laid out in a randomized block design (RBD) comprised of 11 treatments, viz. no Zn; 0.05% of Zn through ZnO; 0.12% of Zn through ZnO; 0.24% of Zn through ZnO; 0.47% of Zn through ZnO; 0.95% of Zn through ZnO; 0.26% of Zn through ZnSO4; 0.52% of Zn through ZnSO4; 1.03% of Zn through ZnSO4; 2.07% of Zn through ZnSO4; and 4.15% of Zn through ZnSO4, replicated thrice. Results indicated that grains/cob and cob weight/plant recorded higher with 1.03%, 2.07% and 4.15% of Zn through ZnSO4 compared to no Zn. Zn at 2.07% (5.68 and 6.36) and 4.15% (5.71 and 6.37) through ZnSO4 recorded higher grain yield followed by 0.95% of Zn (5.50 and 6.23) through ZnO and 1.03% (5.42 and 6.25) of Zn through ZnSO4 in 2021 and 2022. A higher Zn content in grain was registered with 4.15% (27.70 and 27.87 mg/kg) and 2.07% (26.33 and 27.67 mg/kg) of Zn through ZnSO4. Overall, Zn at 2.07% through ZnSO4 was found suitable for urea coating to enhance productivity, soil enzymatic activities and residual soil fertility in spring maize.

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Three zinc sulphate rates increased grains per cob and cob weight versus no zinc.

Taxon
maizeZea mayse1
Treatment
1.03%, 2.07% and 4.15% of Zn through ZnSO4e0
Outcome
grains/cob and cob weight/plante0
Direction
highere0
Comparator
no Zne0

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

“grains/cob and cob weight/plant recorded higher with 1.03%, 2.07% and 4.15% of Zn through ZnSO4 compared to no Zn”

✓ located verbatim in the source · abstract, characters 662–775 · show in text ↑
e1

“maize (Zea mays L.)”

✓ located verbatim in the source · abstract, characters 236–255 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Grain yield at 2.07% zinc sulphate was 5.68 and 6.36 in 2021 and 2022.

Taxon
maizeZea mayse1
Treatment
Zn at 2.07%e0
Outcome
grain yielde0
Direction
highere0
Value
5.68 and 6.36e0

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

“Zn at 2.07% (5.68 and 6.36) and 4.15% (5.71 and 6.37) through ZnSO4 recorded higher grain yield”

✓ located verbatim in the source · abstract, characters 777–872 · show in text ↑
e1

“maize (Zea mays L.)”

✓ located verbatim in the source · abstract, characters 236–255 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Grain yield at 4.15% zinc sulphate was 5.71 and 6.37 in 2021 and 2022.

Taxon
maizeZea mayse1
Treatment
4.15%e0
Outcome
grain yielde0
Direction
highere0
Value
5.71 and 6.37e0

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

“4.15% (5.71 and 6.37) through ZnSO4 recorded higher grain yield”

✓ located verbatim in the source · abstract, characters 809–872 · show in text ↑
e1

“maize (Zea mays L.)”

✓ located verbatim in the source · abstract, characters 236–255 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Grain zinc content at 4.15% zinc sulphate was 27.70 and 27.87 mg/kg.

Taxon
maizeZea mayse1
Treatment
4.15%e0
Outcome
Zn content in graine0
Direction
highere0
Value
27.70 and 27.87 mg/kge0

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

“A higher Zn content in grain was registered with 4.15% (27.70 and 27.87 mg/kg)”

✓ located verbatim in the source · abstract, characters 989–1067 · show in text ↑
e1

“maize (Zea mays L.)”

✓ located verbatim in the source · abstract, characters 236–255 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Grain zinc content at 2.07% zinc sulphate was 26.33 and 27.67 mg/kg.

Taxon
maizeZea mayse2
Treatment
2.07%e0
Outcome
Zn content in graine1
Direction
highere1
Value
26.33 and 27.67 mg/kge0

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

“2.07% (26.33 and 27.67 mg/kg) of Zn through ZnSO4”

✓ located verbatim in the source · abstract, characters 1072–1121 · show in text ↑
e1

“A higher Zn content in grain”

✓ located verbatim in the source · abstract, characters 989–1017 · show in text ↑
e2

“maize (Zea mays L.)”

✓ located verbatim in the source · abstract, characters 236–255 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors found 2.07% zinc sulphate suitable for urea coating to enhance productivity, soil enzymes and residual fertility.

Taxon
maizeZea mayse0
Outcome
urea coating to enhance productivity, soil enzymatic activities and residual soil fertilitye0

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

“Zn at 2.07% through ZnSO4 was found suitable for urea coating to enhance productivity, soil enzymatic activities and residual soil fertility in spring maize”

✓ located verbatim in the source · abstract, characters 1132–1288 · 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 atom · yield · Zea mays (maize)Results differ

441 papers: 391 positive, 50 negative or no effect

390 papers in the same direction as this paper · 47 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

437 papers more in this group

See all 441 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.