Paper · 2025 · IOP Conference Series Earth and Environmental Science

Effect of Potassium Fertilization and Spraying with Zinc and Copper on Yield Characteristics and Components of Maize (Zea mays L.) Plants in Gypsiferous Soil

Mohammed M. D Al-Alwani; M. J. Farhan

13
claims
26
verbatim quotes
0
citations
1
research areas
✓
Open access · cc-by

Abstract

Abstract The study was conducted in the Experiment Station belong to Department of Soil Sciences and Water Resources, College of Agriculture, Tikrit University, Saladin Governorate during autumn season of 2023 in gypsiferous soil, maize plants Gloria variety, of Serbian origin was planted to study effect of adding potassium fertilizer and spraying zinc and copper on yield characteristics of maize plants, study included addition of Potassium sulphate at a concentration of (41.5% K) as a source of potassium at three levels (0, 100, 200) kg K ha −1 , respectively, second factor was copper sulphate (CuSo 4 .5H 2 o) sprayed with three concentrations (0, 15, 35) mg Cu L −1 respectively and third factor was spraying zinc sulphate fertilizer (ZnSo 4 .7H 2 o) at three concentrations (0, 50, 100) mg Zn L −1 , respectively. Experimental results showed that potassium fertilizer at 200 kg K ha −1 excelled in giving it highest rows number of 14.21 row.cob −1 , cob length of 24.35 cm, grain yield of 14.076 (Mg.h −1 ) and highest weight of 500 grains of 196.90 (gm). Zinc spray treatment at 100 mg Zn L −1 also excelled in giving highest increase in rows number, cob length, grain yield and weight of 500 grains of 14.51 row.cob −1 , 24.23 cm, 13.587 Mg.h −1 and 194.95 gm, respectively. Copper spraying treatment at 35 mg Cu L −1 also excelled it gave highest values for studied traits of 14.43 row.cob −1 , 24.07cm, 13.553 Mg.h −1 and 195.52 gm for rows number, cob length, grain yield and weight of 500 grains, respectively. These qualities were significantly impacted by triple interactions between the research factors, especially interaction treatment K 2 Z 2 C 2 , yet control treatment K 0 Z 0 C 0 had the lowest values of these characteristics.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 13

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium at 200 kg K ha −1 gave the highest rows per cob, 14.21 row.cob −1.

Taxon
MaizeZea mayst0
Treatment
potassium fertilizer at 200 kg K ha −1e0
Outcome
rows numbere0
Direction
higheste0
Value
14.21 row.cob −1e0

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

“potassium fertilizer at 200 kg K ha −1 excelled in giving it highest rows number of 14.21 row.cob −1”

✓ located verbatim in the source · abstract, characters 858–958 · show in text ↑
t0

“Maize (Zea mays L.) Plants”

✓ located verbatim in the source · title, characters 111–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium at 200 kg K ha −1 gave a cob length of 24.35 cm.

Taxon
MaizeZea mayst0
Treatment
potassium fertilizer at 200 kg K ha −1e0
Outcome
cob lengthe0
Direction
excellede0
Value
24.35 cme0

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

“potassium fertilizer at 200 kg K ha −1 excelled in giving it highest rows number of 14.21 row.cob −1 , cob length of 24.35 cm”

✓ located verbatim in the source · abstract, characters 858–983 · show in text ↑
t0

“Maize (Zea mays L.) Plants”

✓ located verbatim in the source · title, characters 111–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium at 200 kg K ha −1 gave grain yield of 14.076 (Mg.h −1 ).

Taxon
MaizeZea mayst0
Treatment
potassium fertilizer at 200 kg K ha −1e0
Outcome
grain yielde0
Direction
excellede0
Value
14.076 (Mg.h −1 )e0

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

“potassium fertilizer at 200 kg K ha −1 excelled in giving it highest rows number of 14.21 row.cob −1 , cob length of 24.35 cm, grain yield of 14.076 (Mg.h −1 )”

✓ located verbatim in the source · abstract, characters 858–1017 · show in text ↑
t0

“Maize (Zea mays L.) Plants”

✓ located verbatim in the source · title, characters 111–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium at 200 kg K ha −1 gave the highest 500 grain weight of 196.90 (gm).

Taxon
MaizeZea mayst0
Treatment
potassium fertilizer at 200 kg K ha −1e0
Outcome
weight of 500 grainse0
Direction
higheste0
Value
196.90 (gm)e0

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

“potassium fertilizer at 200 kg K ha −1 excelled in giving it highest rows number of 14.21 row.cob −1 , cob length of 24.35 cm, grain yield of 14.076 (Mg.h −1 ) and highest weight of 500 grains of 196.90 (gm)”

✓ located verbatim in the source · abstract, characters 858–1065 · show in text ↑
t0

“Maize (Zea mays L.) Plants”

✓ located verbatim in the source · title, characters 111–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zinc spray at 100 mg Zn L −1 gave the highest row number of 14.51 row.cob −1.

Taxon
MaizeZea mayst0
Treatment
Zinc spray treatment at 100 mg Zn L −1e0
Outcome
rows numbere0
Direction
highest increasee0
Value
14.51 row.cob −1e0

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

“Zinc spray treatment at 100 mg Zn L −1 also excelled in giving highest increase in rows number, cob length, grain yield and weight of 500 grains of 14.51 row.cob −1 , 24.23 cm, 13.587 Mg.h −1 and 194.95 gm, respectively”

✓ located verbatim in the source · abstract, characters 1067–1286 · show in text ↑
t0

“Maize (Zea mays L.) Plants”

✓ located verbatim in the source · title, characters 111–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zinc spray at 100 mg Zn L −1 gave cob length of 24.23 cm.

Taxon
MaizeZea mayst0
Treatment
Zinc spray treatment at 100 mg Zn L −1e0
Outcome
cob lengthe0
Direction
highest increasee0
Value
24.23 cme0

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

“Zinc spray treatment at 100 mg Zn L −1 also excelled in giving highest increase in rows number, cob length, grain yield and weight of 500 grains of 14.51 row.cob −1 , 24.23 cm, 13.587 Mg.h −1 and 194.95 gm, respectively”

✓ located verbatim in the source · abstract, characters 1067–1286 · show in text ↑
t0

“Maize (Zea mays L.) Plants”

✓ located verbatim in the source · title, characters 111–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zinc spray at 100 mg Zn L −1 gave grain yield of 13.587 Mg.h −1.

Taxon
MaizeZea mayst0
Treatment
Zinc spray treatment at 100 mg Zn L −1e0
Outcome
grain yielde0
Direction
highest increasee0
Value
13.587 Mg.h −1e0

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

“Zinc spray treatment at 100 mg Zn L −1 also excelled in giving highest increase in rows number, cob length, grain yield and weight of 500 grains of 14.51 row.cob −1 , 24.23 cm, 13.587 Mg.h −1 and 194.95 gm, respectively”

✓ located verbatim in the source · abstract, characters 1067–1286 · show in text ↑
t0

“Maize (Zea mays L.) Plants”

✓ located verbatim in the source · title, characters 111–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zinc spray at 100 mg Zn L −1 gave 500 grain weight of 194.95 gm.

Taxon
MaizeZea mayst0
Treatment
Zinc spray treatment at 100 mg Zn L −1e0
Outcome
weight of 500 grainse0
Direction
highest increasee0
Value
194.95 gme0

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

“Zinc spray treatment at 100 mg Zn L −1 also excelled in giving highest increase in rows number, cob length, grain yield and weight of 500 grains of 14.51 row.cob −1 , 24.23 cm, 13.587 Mg.h −1 and 194.95 gm, respectively”

✓ located verbatim in the source · abstract, characters 1067–1286 · show in text ↑
t0

“Maize (Zea mays L.) Plants”

✓ located verbatim in the source · title, characters 111–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Copper spray at 35 mg Cu L −1 gave the highest row number of 14.43 row.cob −1.

Taxon
MaizeZea mayst0
Treatment
Copper spraying treatment at 35 mg Cu L −1e0
Outcome
rows numbere0
Direction
highest valuese0
Value
14.43 row.cob −1e0

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

“Copper spraying treatment at 35 mg Cu L −1 also excelled it gave highest values for studied traits of 14.43 row.cob −1 , 24.07cm, 13.553 Mg.h −1 and 195.52 gm for rows number, cob length, grain yield and weight of 500 grains, respectively”

✓ located verbatim in the source · abstract, characters 1288–1526 · show in text ↑
t0

“Maize (Zea mays L.) Plants”

✓ located verbatim in the source · title, characters 111–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Copper spray at 35 mg Cu L −1 gave cob length of 24.07cm.

Taxon
MaizeZea mayst0
Treatment
Copper spraying treatment at 35 mg Cu L −1e0
Outcome
cob lengthe0
Direction
highest valuese0
Value
24.07cme0

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

“Copper spraying treatment at 35 mg Cu L −1 also excelled it gave highest values for studied traits of 14.43 row.cob −1 , 24.07cm, 13.553 Mg.h −1 and 195.52 gm for rows number, cob length, grain yield and weight of 500 grains, respectively”

✓ located verbatim in the source · abstract, characters 1288–1526 · show in text ↑
t0

“Maize (Zea mays L.) Plants”

✓ located verbatim in the source · title, characters 111–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Copper spray at 35 mg Cu L −1 gave grain yield of 13.553 Mg.h −1.

Taxon
MaizeZea mayst0
Treatment
Copper spraying treatment at 35 mg Cu L −1e0
Outcome
grain yielde0
Direction
highest valuese0
Value
13.553 Mg.h −1e0

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

“Copper spraying treatment at 35 mg Cu L −1 also excelled it gave highest values for studied traits of 14.43 row.cob −1 , 24.07cm, 13.553 Mg.h −1 and 195.52 gm for rows number, cob length, grain yield and weight of 500 grains, respectively”

✓ located verbatim in the source · abstract, characters 1288–1526 · show in text ↑
t0

“Maize (Zea mays L.) Plants”

✓ located verbatim in the source · title, characters 111–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Copper spray at 35 mg Cu L −1 gave 500 grain weight of 195.52 gm.

Taxon
MaizeZea mayst0
Treatment
Copper spraying treatment at 35 mg Cu L −1e0
Outcome
weight of 500 grainse0
Direction
highest valuese0
Value
195.52 gme0

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

“Copper spraying treatment at 35 mg Cu L −1 also excelled it gave highest values for studied traits of 14.43 row.cob −1 , 24.07cm, 13.553 Mg.h −1 and 195.52 gm for rows number, cob length, grain yield and weight of 500 grains, respectively”

✓ located verbatim in the source · abstract, characters 1288–1526 · show in text ↑
t0

“Maize (Zea mays L.) Plants”

✓ located verbatim in the source · title, characters 111–137 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The triple interaction significantly affected the studied maize yield characteristics.

Taxon
MaizeZea mayst0
Treatment
triple interactions between the research factorse0
Outcome
These qualitiese0
Qualifier
especially interaction treatment K 2 Z 2 C 2e0
Comparator
control treatment K 0 Z 0 C 0e0

Not reportedDirection

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

“These qualities were significantly impacted by triple interactions between the research factors, especially interaction treatment K 2 Z 2 C 2 , yet control treatment K 0 Z 0 C 0 had the lowest values of these characteristics”

✓ located verbatim in the source · abstract, characters 1528–1752 · show in text ↑
t0

“Maize (Zea mays L.) Plants”

✓ located verbatim in the source · title, characters 111–137 · show in text ↑

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

26 papers: 18 positive, 8 negative or no effect

17 papers in the same direction as this paper · 8 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

22 papers more in this group

See all 26 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 →

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

629 papers: 575 positive, 54 negative or no effect

574 papers in the same direction as this paper · 42 in the opposite direction · 12 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

625 papers more in this group

See all 629 papers →

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

3,908 papers: 3,485 positive, 423 negative or no effect

3,484 papers in the same direction as this paper · 338 in the opposite direction · 85 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

3,904 papers more in this group

See all 3,908 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.