Paper · 2025 · Soil Systems

Addressing Soil Fertility Challenges in Arid Agriculture: A Two-Year Evaluation of Combined Soil Organic Amendments Under Saline Irrigation

Houda Oueriemmi; Rahma Inès Zoghlami; Elie Le Guyader; et al.

12
claims
15
verbatim quotes
5
citations
2
research areas
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Open access · cc-by

Abstract

Background: Soil salinity poses a significant threat to agricultural lands by adversely affecting soil properties, crop productivity, and, consequently, global food security. This study evaluated the effects of date palm waste compost (C), applied alone or combined with biochar (BCC) or Ramial chipped wood (RCWC), on soil properties and barley yield under arid and saline conditions. Methods: A field experiment was performed in a completely random design with three replications. In addition to the unamended soil (control), treatments with compost (C), biochar + compost (BCC) and Ramial chipped wood + compost (RCWC) were tested. We monitored soil physico-chemical parameters, straw biomass, grain yield, and soluble sugar levels over two crop seasons. Results: All treatments enhanced soil fertility. However, the sodium adsorption ratio (SAR) and the cation ratio of soil structural stability (CROSS) increased in soils amended with compost alone in the second crop year. Barley (Hordeum vulgare L.) cultivated in soil amended with C and BCC produced 28% and 37% more dry biomass, respectively, in the second year, while no significant effects were observed in the first year. This may be attributed to the higher availability of nutrient content (N and P) in soils during the second year. In the first year, plants amended with BCC exhibited the highest accumulation of sucrose and fructose, with increases of up to 39% and 66%, respectively. Conclusions: Compost application did not affect barley yield during the first crop year, highlighting limited effects on soil fertility. However, C and BCC improved barley yield in the second year after application. No synergistic effect was observed between biochar, Ramial chipped wood, and compost. Future Perspective: Further studies should focus on the long-term effects of organic soil management, including salinity issues, to support sustainable agriculture in arid regions.

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 12

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All amendments enhanced soil fertility.

Treatment
All treatmentse0
Outcome
soil fertilitye0
Direction
enhancede0

Not reportedTaxonComparator

Verbatim

e0

“All treatments enhanced soil fertility”

✓ located verbatim in the source · abstract, characters 767–805 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Compost alone increased soil SAR in year two.

Treatment
compost alonee0
Outcome
sodium adsorption ratio (SAR)e0
Direction
increasede0
Qualifier
second crop yeare0

Not reportedTaxonComparator

Verbatim

e0

“the sodium adsorption ratio (SAR) and the cation ratio of soil structural stability (CROSS) increased in soils amended with compost alone in the second crop year”

✓ located verbatim in the source · abstract, characters 816–977 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Compost alone increased soil CROSS in year two.

Treatment
compost alonee0
Outcome
cation ratio of soil structural stability (CROSS)e0
Direction
increasede0
Qualifier
second crop yeare0

Not reportedTaxonComparator

Verbatim

e0

“the sodium adsorption ratio (SAR) and the cation ratio of soil structural stability (CROSS) increased in soils amended with compost alone in the second crop year”

✓ located verbatim in the source · abstract, characters 816–977 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Compost increased barley dry biomass by 28% in year two.

Taxon
Barley (Hordeum vulgare L.)Hordeum vulgaree0
Treatment
Ce0
Outcome
dry biomasse0
Direction
moree0
Value
28%e0
Qualifier
second yeare0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Barley (Hordeum vulgare L.) cultivated in soil amended with C and BCC produced 28% and 37% more dry biomass, respectively, in the second year”

✓ located verbatim in the source · abstract, characters 979–1120 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar plus compost increased barley dry biomass by 37% in year two.

Taxon
Barley (Hordeum vulgare L.)Hordeum vulgaree0
Treatment
BCCe0
Outcome
dry biomasse0
Direction
moree0
Value
37%e0
Qualifier
second yeare0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Barley (Hordeum vulgare L.) cultivated in soil amended with C and BCC produced 28% and 37% more dry biomass, respectively, in the second year”

✓ located verbatim in the source · abstract, characters 979–1120 · show in text ↑
Observationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

The amendments did not significantly affect biomass in year one.

Outcome
effectse0
Qualifier
first yeare0

Not reportedTaxonDirection

Verbatim

e0

“while no significant effects were observed in the first year”

✓ located verbatim in the source · abstract, characters 1122–1182 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

BCC gave the greatest sucrose accumulation in year one, up to 39%.

Treatment
BCCe0
Outcome
accumulation of sucrosee0
Direction
higheste0
Value
up to 39%e0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“plants amended with BCC exhibited the highest accumulation of sucrose and fructose, with increases of up to 39% and 66%, respectively”

✓ located verbatim in the source · abstract, characters 1316–1449 · show in text ↑
e1

“barley yield under arid and saline conditions”

✓ located verbatim in the source · abstract, characters 339–384 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

BCC gave the greatest fructose accumulation in year one, up to 66%.

Treatment
BCCe0
Outcome
fructosee0
Direction
higheste0
Value
66%e0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“plants amended with BCC exhibited the highest accumulation of sucrose and fructose, with increases of up to 39% and 66%, respectively”

✓ located verbatim in the source · abstract, characters 1316–1449 · show in text ↑
e1

“barley yield under arid and saline conditions”

✓ located verbatim in the source · abstract, characters 339–384 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Compost did not affect barley yield in year one.

Treatment
Compost applicatione0
Outcome
barley yielde0
Direction
did not affecte0
Qualifier
first crop yeare0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Compost application did not affect barley yield during the first crop year”

✓ located verbatim in the source · abstract, characters 1464–1538 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Compost improved barley yield in year two.

Treatment
Ce0
Outcome
barley yielde0
Direction
improvede0
Qualifier
second yeare0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“C and BCC improved barley yield in the second year after application”

✓ located verbatim in the source · abstract, characters 1597–1665 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar plus compost improved barley yield in year two.

Treatment
BCCe0
Outcome
barley yielde0
Direction
improvede0
Qualifier
second yeare0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“C and BCC improved barley yield in the second year after application”

✓ located verbatim in the source · abstract, characters 1597–1665 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

No synergistic effect occurred between biochar, chipped wood and compost.

Treatment
biochar, Ramial chipped wood, and composte0
Outcome
No synergistic effecte0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“No synergistic effect was observed between biochar, Ramial chipped wood, and compost”

✓ located verbatim in the source · abstract, characters 1667–1751 · show in text ↑
e1

“barley yield under arid and saline conditions”

✓ located verbatim in the source · abstract, characters 339–384 · show in text ↑

biochar · molecular: metabolites · Hordeum vulgare (barley)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

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biochar · growth · Hordeum vulgare (barley)Positive and negative results

9 papers: 8 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

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biochar · yield · Hordeum vulgare (barley)Positive and negative results

19 papers: 15 positive, 4 negative or no effect

14 papers in the same direction as this paper · 4 in the opposite direction

  1. no effect
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fertilization · molecular: metabolites · Hordeum vulgare (barley)Positive and negative results

47 papers: 38 positive, 9 negative or no effect

37 papers in the same direction as this paper · 7 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

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fertilization · nutrient: content · Hordeum vulgare (barley)Positive and negative results

120 papers: 96 positive, 24 negative or no effect

23 papers in the same direction as this paper · 96 in the opposite direction

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fertilization · growth · Hordeum vulgare (barley)Positive and negative results

165 papers: 138 positive, 27 negative or no effect

137 papers in the same direction as this paper · 25 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

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fertilization · yield · Hordeum vulgare (barley)Positive and negative results

550 papers: 473 positive, 77 negative or no effect

472 papers in the same direction as this paper · 66 in the opposite direction · 11 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

546 papers more in this group

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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.