Paper · 2019 · Applied Ecology and Environmental Research

EFFECT OF HUMIC ACID AND SULFUR FERTILIZER LEVELS ON SOME PHYSIOLOGICAL TRAITS OF MAIZE (ZEA MAYS L.) ON CALCAREOUS SOIL

M T MARUF

10
claims
26
verbatim quotes
5
citations
1
research areas
✓
Open access

Abstract

The field experiment was conducted at two locations, Qlyasan and Kanipanka in Sulaimani governorate, Iraq. The main aim of this research is, to evaluate the impact of adding various levels of Humic Acid and Sulfur rates on maize yield and yield components. Experimental treatments have been organized and a factorial experiment was laid out in a complete randomized block design with three replicates. The treatments included four levels of humic acid, and four levels of sulfur incorporated into the soil. The results showed that the effect was significant at (P < 0.05) on the reproductive growth criteria of a maize plant. The number of kernels per ear, the weight of 100 kernels (g), kernel yield (ton ha -1 ), biological yield (ton ha -1 ), harvest index and relative yield maize plant from both of locations. While the results showed that the humic acid and sulfur application significantly affected of the number of kernels per raw from Kanipanka and of the ear diameter (cm) from Qlyasan, it did not affect the number of kernels per raw from Qlyasan location and by the ear diameter (cm) from Kanipanka location.

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Claims 10

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Humic acid and sulfur levels significantly affected number of kernels per ear at both locations.

Taxon
MAIZEZea mayst0
Treatment
humic acid and sulfure1
Outcome
number of kernels per eare0

Not reportedComparatorDirection

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

t0

“MAIZE (ZEA MAYS L.)”

✓ located verbatim in the source · title, characters 82–101 · show in text ↑
e0

“The results showed that the effect was significant at (P < 0.05) on the reproductive growth criteria of a maize plant. The number of kernels per ear, the weight of 100 kernels (g), kernel yield (ton ha -1 ), biological yield (ton ha -1 ), harvest index and relative yield maize plant from both of locations.”

✓ located verbatim in the source · abstract, characters 507–814 · show in text ↑
e1

“the humic acid and sulfur application significantly affected”

✓ located verbatim in the source · abstract, characters 845–905 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Humic acid and sulfur levels significantly affected weight of 100 kernels (g) at both locations.

Taxon
MAIZEZea mayst0
Treatment
humic acid and sulfure1
Outcome
weight of 100 kernels (g)e0

Not reportedComparatorDirection

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

t0

“MAIZE (ZEA MAYS L.)”

✓ located verbatim in the source · title, characters 82–101 · show in text ↑
e0

“The results showed that the effect was significant at (P < 0.05) on the reproductive growth criteria of a maize plant. The number of kernels per ear, the weight of 100 kernels (g), kernel yield (ton ha -1 ), biological yield (ton ha -1 ), harvest index and relative yield maize plant from both of locations.”

✓ located verbatim in the source · abstract, characters 507–814 · show in text ↑
e1

“the humic acid and sulfur application significantly affected”

✓ located verbatim in the source · abstract, characters 845–905 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Humic acid and sulfur levels significantly affected kernel yield (ton ha -1 ) at both locations.

Taxon
MAIZEZea mayst0
Treatment
humic acid and sulfure1
Outcome
kernel yield (ton ha -1 )e0

Not reportedComparatorDirection

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

t0

“MAIZE (ZEA MAYS L.)”

✓ located verbatim in the source · title, characters 82–101 · show in text ↑
e0

“The results showed that the effect was significant at (P < 0.05) on the reproductive growth criteria of a maize plant. The number of kernels per ear, the weight of 100 kernels (g), kernel yield (ton ha -1 ), biological yield (ton ha -1 ), harvest index and relative yield maize plant from both of locations.”

✓ located verbatim in the source · abstract, characters 507–814 · show in text ↑
e1

“the humic acid and sulfur application significantly affected”

✓ located verbatim in the source · abstract, characters 845–905 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Humic acid and sulfur levels significantly affected biological yield (ton ha -1 ) at both locations.

Taxon
MAIZEZea mayst0
Treatment
humic acid and sulfure1
Outcome
biological yield (ton ha -1 )e0

Not reportedComparatorDirection

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

t0

“MAIZE (ZEA MAYS L.)”

✓ located verbatim in the source · title, characters 82–101 · show in text ↑
e0

“The results showed that the effect was significant at (P < 0.05) on the reproductive growth criteria of a maize plant. The number of kernels per ear, the weight of 100 kernels (g), kernel yield (ton ha -1 ), biological yield (ton ha -1 ), harvest index and relative yield maize plant from both of locations.”

✓ located verbatim in the source · abstract, characters 507–814 · show in text ↑
e1

“the humic acid and sulfur application significantly affected”

✓ located verbatim in the source · abstract, characters 845–905 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Humic acid and sulfur levels significantly affected harvest index at both locations.

Taxon
MAIZEZea mayst0
Treatment
humic acid and sulfure1
Outcome
harvest indexe0

Not reportedComparatorDirection

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

t0

“MAIZE (ZEA MAYS L.)”

✓ located verbatim in the source · title, characters 82–101 · show in text ↑
e0

“The results showed that the effect was significant at (P < 0.05) on the reproductive growth criteria of a maize plant. The number of kernels per ear, the weight of 100 kernels (g), kernel yield (ton ha -1 ), biological yield (ton ha -1 ), harvest index and relative yield maize plant from both of locations.”

✓ located verbatim in the source · abstract, characters 507–814 · show in text ↑
e1

“the humic acid and sulfur application significantly affected”

✓ located verbatim in the source · abstract, characters 845–905 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Humic acid and sulfur levels significantly affected relative yield maize plant at both locations.

Taxon
MAIZEZea mayst0
Treatment
humic acid and sulfure1
Outcome
relative yield maize plante0

Not reportedComparatorDirection

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

t0

“MAIZE (ZEA MAYS L.)”

✓ located verbatim in the source · title, characters 82–101 · show in text ↑
e0

“The results showed that the effect was significant at (P < 0.05) on the reproductive growth criteria of a maize plant. The number of kernels per ear, the weight of 100 kernels (g), kernel yield (ton ha -1 ), biological yield (ton ha -1 ), harvest index and relative yield maize plant from both of locations.”

✓ located verbatim in the source · abstract, characters 507–814 · show in text ↑
e1

“the humic acid and sulfur application significantly affected”

✓ located verbatim in the source · abstract, characters 845–905 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Humic acid and sulfur significantly affected number of kernels per raw at Kanipanka.

Taxon
MAIZEZea mayst0
Treatment
humic acid and sulfur applicatione1
Outcome
number of kernels per rawe1
Setting
Kanipankae1

Not reportedComparatorDirection

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

t0

“MAIZE (ZEA MAYS L.)”

✓ located verbatim in the source · title, characters 82–101 · show in text ↑
e1

“the humic acid and sulfur application significantly affected of the number of kernels per raw from Kanipanka and of the ear diameter (cm) from Qlyasan, it did not affect the number of kernels per raw from Qlyasan location and by the ear diameter (cm) from Kanipanka location”

✓ located verbatim in the source · abstract, characters 845–1119 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Humic acid and sulfur significantly affected ear diameter (cm) at Qlyasan.

Taxon
MAIZEZea mayst0
Treatment
humic acid and sulfur applicatione1
Outcome
ear diameter (cm)e1
Setting
Qlyasane1

Not reportedComparatorDirection

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

t0

“MAIZE (ZEA MAYS L.)”

✓ located verbatim in the source · title, characters 82–101 · show in text ↑
e1

“the humic acid and sulfur application significantly affected of the number of kernels per raw from Kanipanka and of the ear diameter (cm) from Qlyasan, it did not affect the number of kernels per raw from Qlyasan location and by the ear diameter (cm) from Kanipanka location”

✓ located verbatim in the source · abstract, characters 845–1119 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Humic acid and sulfur did not significantly affect number of kernels per raw at Qlyasan.

Taxon
MAIZEZea mayst0
Treatment
humic acid and sulfur applicatione1
Outcome
number of kernels per rawe1
Setting
Qlyasane1

Not reportedComparatorDirection

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

t0

“MAIZE (ZEA MAYS L.)”

✓ located verbatim in the source · title, characters 82–101 · show in text ↑
e1

“the humic acid and sulfur application significantly affected of the number of kernels per raw from Kanipanka and of the ear diameter (cm) from Qlyasan, it did not affect the number of kernels per raw from Qlyasan location and by the ear diameter (cm) from Kanipanka location”

✓ located verbatim in the source · abstract, characters 845–1119 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Humic acid and sulfur did not significantly affect ear diameter (cm) at Kanipanka.

Taxon
MAIZEZea mayst0
Treatment
humic acid and sulfur applicatione1
Outcome
ear diameter (cm)e1
Setting
Kanipankae1

Not reportedComparatorDirection

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

t0

“MAIZE (ZEA MAYS L.)”

✓ located verbatim in the source · title, characters 82–101 · show in text ↑
e1

“the humic acid and sulfur application significantly affected of the number of kernels per raw from Kanipanka and of the ear diameter (cm) from Qlyasan, it did not affect the number of kernels per raw from Qlyasan location and by the ear diameter (cm) from Kanipanka location”

✓ located verbatim in the source · abstract, characters 845–1119 · show in text ↑

sulfur atom · yield · Zea mays (maize)Results differ

82 papers: 69 positive, 13 negative or no effect

12 papers in the same direction as this paper · 69 in the opposite direction

  1. positive
  2. positive
  3. positive

78 papers more in this group

See all 82 papers →

other · yield · Zea mays (maize)Positive and negative results

253 papers: 221 positive, 32 negative or no effect

31 papers in the same direction as this paper · 221 in the opposite direction

  1. positive
  2. no effect
  3. positive

249 papers more in this group

See all 253 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.