Paper · 2017 · Journal of the Science of Food and Agriculture

Role of microbial inoculation and industrial by‐product phosphogypsum in growth and nutrient uptake of maize (Zea mays L.) grown in calcareous soil

Abdul‐Aziz R Al‐Enazy; Saud S Al‐Oud; Fahad N Al‐Barakah; et al.

6
claims
15
verbatim quotes
27
citations
3
research areas
—
Not open access

Abstract

Abstract BACKGROUND Alkaline soils with high calcium carbonate and low organic matter are deficient in plant nutrient availability. Use of organic and bio‐fertilizers has been suggested to improve their properties. Therefore, a greenhouse experiment was conducted to evaluate the integrative role of phosphogypsum ( PG ; added at 0.0, 10, 30, and 50 g PG kg −1 ), cow manure ( CM ; added at 50 g kg −1 ) and mixed microbial inoculation (Incl.; Azotobacter chroococcum , and phosphate‐solubilizing bacteria Bacillus megaterium var. phosphaticum and Pseudomonas fluorescens ) on growth and nutrients (N, P, K, Fe, Mn, Zn and Cu) uptake of maize ( Zea mays L.) in calcareous soil. Treatment effects on soil chemical and biological properties and the Cd and Pb availability to maize plants were also investigated. RESULTS Applying PG decreased soil pH . The soil available P increased when soil was inoculated and/or treated with CM , especially with PG . The total microbial count and dehydrogenase activity were enhanced with PG + CM +Incl. treatments. Inoculated soils treated with PG showed significant increases in NPK uptake and maize plant growth. However, the most investigated treatments showed significant decreases in shoot micronutrients. Cd and Pb were not detected in maize shoots. CONCLUSIONS Applying PG with microbial inoculation improved macronutrient uptake and plant growth. © 2017 Society of Chemical Industry

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Claims 6

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Applying phosphogypsum decreased soil pH in the greenhouse experiment with maize.

Taxon
maizeZea mayse1
Treatment
Applying PGe2
Outcome
soil pHe2
Direction
decreasede2
Setting
greenhouse experimente0

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 greenhouse experiment was conducted”

✓ located verbatim in the source · abstract, characters 226–263 · show in text ↑
e1

“uptake of maize ( Zea mays L.) in calcareous soil”

✓ located verbatim in the source · abstract, characters 627–676 · show in text ↑
e2

“Applying PG decreased soil pH”

✓ located verbatim in the source · abstract, characters 818–847 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Inoculation and/or cow manure treatment increased soil available P, especially with phosphogypsum.

Taxon
maizeZea mayse1
Treatment
inoculated and/or treated with CMe3
Outcome
soil available Pe3
Direction
increasede3
Qualifier
especially with PGe3
Setting
greenhouse experimente0

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 greenhouse experiment was conducted”

✓ located verbatim in the source · abstract, characters 226–263 · show in text ↑
e1

“uptake of maize ( Zea mays L.) in calcareous soil”

✓ located verbatim in the source · abstract, characters 627–676 · show in text ↑
e3

“The soil available P increased when soil was inoculated and/or treated with CM , especially with PG”

✓ located verbatim in the source · abstract, characters 850–949 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PG + CM + inoculation treatments enhanced the total microbial count and dehydrogenase activity.

Taxon
maizeZea mayse1
Treatment
PG + CM +Incl.e4
Outcome
total microbial count and dehydrogenase activitye4
Direction
enhancede4
Setting
greenhouse experimente0

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 greenhouse experiment was conducted”

✓ located verbatim in the source · abstract, characters 226–263 · show in text ↑
e1

“uptake of maize ( Zea mays L.) in calcareous soil”

✓ located verbatim in the source · abstract, characters 627–676 · show in text ↑
e4

“The total microbial count and dehydrogenase activity were enhanced with PG + CM +Incl. treatments”

✓ located verbatim in the source · abstract, characters 952–1049 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Inoculated soils treated with phosphogypsum significantly increased NPK uptake and maize plant growth.

Taxon
maizeZea mayse1
Treatment
Inoculated soils treated with PGe5
Outcome
NPK uptake and maize plant growthe5
Direction
increasese5
Setting
greenhouse experimente0

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 greenhouse experiment was conducted”

✓ located verbatim in the source · abstract, characters 226–263 · show in text ↑
e1

“uptake of maize ( Zea mays L.) in calcareous soil”

✓ located verbatim in the source · abstract, characters 627–676 · show in text ↑
e5

“Inoculated soils treated with PG showed significant increases in NPK uptake and maize plant growth”

✓ located verbatim in the source · abstract, characters 1051–1149 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

The most investigated treatments significantly decreased shoot micronutrients.

Taxon
maizeZea mayse1
Treatment
the most investigated treatmentse6
Outcome
shoot micronutrientse6
Direction
decreasese6

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

e1

“uptake of maize ( Zea mays L.) in calcareous soil”

✓ located verbatim in the source · abstract, characters 627–676 · show in text ↑
e6

“However, the most investigated treatments showed significant decreases in shoot micronutrients”

✓ located verbatim in the source · abstract, characters 1151–1245 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cd and Pb were not detected in maize shoots.

Taxon
maizeZea mayse7
Outcome
Cd and Pbe7
Qualifier
not detected in maize shootse7

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

e7

“Cd and Pb were not detected in maize shoots”

✓ located verbatim in the source · abstract, characters 1247–1290 · show in text ↑

inoculation · soil: chemistry · Zea mays (maize)Positive and negative results

71 papers: 62 positive, 9 negative or no effect

61 papers in the same direction as this paper · 9 in the opposite direction

  1. positive
  2. positive
  3. negative

67 papers more in this group

See all 71 papers →

inoculation · growth · Zea mays (maize)Positive and negative results

699 papers: 635 positive, 64 negative or no effect

634 papers in the same direction as this paper · 61 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
  2. negative
  3. no effect

695 papers more in this group

See all 699 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.