Paper · 2025 · Journal of agriculture and biology.

Green and Wood Waste Biochar Based Soil Amendment to Mitigate Early Blight Stress in Tomato

Muhammad Hafeez ul Haq; Adnan Akhter; Waheed Anwar; et al.

7
claims
14
verbatim quotes
0
citations
3
research areas
✓
Open access · cc-by

Abstract

The use of available resources for the benefit of both environment and human beings comes under sustainable agriculture. Application of chemical fertilizers and pesticides is against the sustainable management of agricultural resources. Biochar acts as alternative to chemical pesticides and fertilizers by promoting the disease suppression and enhancing plant growth. Current study examines the effect of different biochar concentrations on growth enhancement of tomato plants and availability of essential nutrients like potassium and phosphorus both in the absence and presence of Alternaria solani infection. Soil was amended with green and wood waste biochar (GWB). Both biochar concentrations (3 and 6%) effectively minimized disease progress while enhancing plant growth. However, 6% GWB performed better. Both root and shoot length increased in soil amended with 6% GWB. Both disease incidence and severity reduced drastically in soil amended with 6% biochar. Nitrogen contents increased by 13.07% under stress conditions. The disease incidence was 100% in un-amended soil while it was reduced to just 20% in soil amended with 6% GWB. There was significant drop (6%) in disease severity in 6% GWB amended soil. In short, soil amendment with biochar proved effect strategy for mitigation of early blight in to tomato by stimulating plant growth parameters and minimizing disease incidence. Biochar application is crucial for sustainable agriculture.

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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar at 3 and 6% minimized early blight disease progress in tomato

Treatment
biochar concentrations (3 and 6%)e2
Interactor
Alternaria solaniAlternaria solanie1pathogen
Outcome
disease progresse2
Direction
minimizede2

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Alternaria solani
Alternaria solani · InteractorClemson University - USDA Cooperative Extension Slide Series · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e1

“growth enhancement of tomato plants and availability of essential nutrients like potassium and phosphorus both in the absence and presence of Alternaria solani infection”

✓ located verbatim in the source · abstract, characters 442–611 · show in text ↑
e2

“Both biochar concentrations (3 and 6%) effectively minimized disease progress while enhancing plant growth”

✓ located verbatim in the source · abstract, characters 671–777 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar at 3 and 6% enhanced plant growth of tomato

Treatment
biochar concentrations (3 and 6%)e2
Outcome
plant growthe2
Direction
enhancinge2

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“growth enhancement of tomato plants and availability of essential nutrients like potassium and phosphorus both in the absence and presence of Alternaria solani infection”

✓ located verbatim in the source · abstract, characters 442–611 · show in text ↑
e2

“Both biochar concentrations (3 and 6%) effectively minimized disease progress while enhancing plant growth”

✓ located verbatim in the source · abstract, characters 671–777 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 6% GWB treatment performed better than the other biochar concentration tested in tomato

Treatment
6% GWBe3
Outcome
performed bettere3
Direction
bettere3

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“growth enhancement of tomato plants and availability of essential nutrients like potassium and phosphorus both in the absence and presence of Alternaria solani infection”

✓ located verbatim in the source · abstract, characters 442–611 · show in text ↑
e3

“However, 6% GWB performed better”

✓ located verbatim in the source · abstract, characters 779–811 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Root and shoot length of tomato increased in soil amended with 6% GWB

Treatment
6% GWBe4
Outcome
root and shoot lengthe4
Direction
increasede4

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“growth enhancement of tomato plants and availability of essential nutrients like potassium and phosphorus both in the absence and presence of Alternaria solani infection”

✓ located verbatim in the source · abstract, characters 442–611 · show in text ↑
e4

“Both root and shoot length increased in soil amended with 6% GWB”

✓ located verbatim in the source · abstract, characters 813–877 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Disease incidence in tomato fell to 20% in soil amended with 6% GWB, against 100% in un-amended soil

Treatment
6% GWBe5
Interactor
Alternaria solaniAlternaria solanie1pathogen
Outcome
disease incidencee5
Direction
reducede5
Value
20%e5
Comparator
un-amended soile5

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Alternaria solani
Alternaria solani · InteractorClemson University - USDA Cooperative Extension Slide Series · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e1

“growth enhancement of tomato plants and availability of essential nutrients like potassium and phosphorus both in the absence and presence of Alternaria solani infection”

✓ located verbatim in the source · abstract, characters 442–611 · show in text ↑
e5

“The disease incidence was 100% in un-amended soil while it was reduced to just 20% in soil amended with 6% GWB”

✓ located verbatim in the source · abstract, characters 1031–1141 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Disease severity of early blight in tomato dropped significantly by 6% in soil amended with 6% GWB

Treatment
6% GWBe6
Interactor
Alternaria solaniAlternaria solanie1pathogen
Outcome
disease severitye6
Direction
drope6
Value
6%e6

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Alternaria solani
Alternaria solani · InteractorClemson University - USDA Cooperative Extension Slide Series · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e1

“growth enhancement of tomato plants and availability of essential nutrients like potassium and phosphorus both in the absence and presence of Alternaria solani infection”

✓ located verbatim in the source · abstract, characters 442–611 · show in text ↑
e6

“There was significant drop (6%) in disease severity in 6% GWB amended soil”

✓ located verbatim in the source · abstract, characters 1143–1217 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen content of tomato increased by 13.07% under stress conditions

Treatment
stress conditionse7
Outcome
Nitrogen contentse7
Direction
increasede7
Value
13.07%e7

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“growth enhancement of tomato plants and availability of essential nutrients like potassium and phosphorus both in the absence and presence of Alternaria solani infection”

✓ located verbatim in the source · abstract, characters 442–611 · show in text ↑
e7

“Nitrogen contents increased by 13.07% under stress conditions”

✓ located verbatim in the source · abstract, characters 968–1029 · show in text ↑

biochar · growth · Solanum lycopersicum (tomato)Results differ

80 papers: 71 positive, 9 negative or no effect

70 papers in the same direction as this paper · 8 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

76 papers more in this group

See all 80 papers →

biochar · Alternaria solani · Solanum lycopersicum (tomato)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 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.