Paper · 2023 · Waste Management Bulletin

Eggplant growth in wheat straw-, wheat straw biochar- and compost-amended soils: a field study of CO2 emission dynamics, soil physicochemical, microbial, and nutrient effects

Dinesh Mohan; Brahmacharimayum Preetiva; Abhishek Kumar Chaubey; et al.

15
claims
30
verbatim quotes
12
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

The growth of eggplant (Pusa Safed Baingan-1) was studied during the semi-arid (March to June) and humid sub-tropical (July to September) seasons of New Delhi, India. The individual effects of wheat straw biomass (WSBM), wheat straw biochar (WSBC) and compost versus the combined effect of WSBM plus compost and WSBC plus compost were determined under field conditions. The amendments were made at two different application rates: 1wt% and 2 wt%. WSBC was successfully prepared in a proprietary kachcha reactor (Indian patent no. 380920), designed using locally sourced clay, which was designed using locally sourced clay materials. Amendments were characterized using elemental analyzer, scanning electron (SEM), transmission electron (TEM) microscopy, Fourier transform infrared (FTIR) spectroscopy and X-Ray diffraction (XRD). The field study was conducted in 11 (1x1-meter) plots with two replicates. Basic soil health parameters including pH, electrical conductivity (EC), water holding capacity (WHC), bulk density (BD), cation exchange capacity (CEC), total nitrogen (TN), available nitrogen (AN), soil organic carbon (SOC), available phosphorus (AP), microbial biomass carbon (MBC) and mineral contents are analyzed. Observable plant growth characteristics (germination percentage, height, number of leaves, fruits, plant biomass and mineral contents) were also recorded. Biochar amendment was most beneficial for enhancing the majority of these parameters. With respect to the control, a 20% decrease in bulk density, a 30% increase in water holding capacity, a 122% increase in organic carbon, a 175% increase in total nitrogen, a 123% increase in available nitrogen, and a 473% increase in available phosphorus were recorded. . Furthermore, with respect to the control, a 115% increase in CEC was recorded using the compost amendment vs 84% with WSBC. Synergism between biochar and compost was reflected by high germination percentage (44%), number of fruits (600%), plant biomass weight (243%) and soil microbial biomass carbon (286%). Biomass amendment failed to show any positive influence. In summary, biochar emerges as a superior choice compared to both biomass and compost when it comes to soil amendments.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 15

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar amendment was most beneficial for the majority of measured soil and plant parameters.

Taxon
eggplantSolanum melongenat0
Treatment
Biochar amendmente0
Outcome
majority of these parameterse0
Direction
enhancinge0

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Biochar amendment was most beneficial for enhancing the majority of these parameters.”

✓ located verbatim in the source · abstract, characters 1380–1465 · show in text ↑
t0

“Eggplant”

✓ located verbatim in the source · title, characters 0–8 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar lowered soil bulk density by 20% relative to control.

Taxon
eggplantSolanum melongenat0
Treatment
biochart0
Outcome
bulk densitye0
Direction
decreasee0
Value
20%e0
Comparator
controle0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“With respect to the control, a 20% decrease in bulk density, a 30% increase in water holding capacity, a 122% increase in organic carbon, a 175% increase in total nitrogen, a 123% increase in available nitrogen, and a 473% increase in available phosphorus were recorded.”

✓ located verbatim in the source · abstract, characters 1466–1736 · show in text ↑
t0

“Eggplant growth in wheat straw-, wheat straw biochar- and compost-amended soils”

✓ located verbatim in the source · title, characters 0–79 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar raised soil water holding capacity by 30% relative to control.

Taxon
eggplantSolanum melongenat0
Treatment
biochart0
Outcome
water holding capacitye0
Direction
increasee0
Value
30%e0
Comparator
controle0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“With respect to the control, a 20% decrease in bulk density, a 30% increase in water holding capacity, a 122% increase in organic carbon, a 175% increase in total nitrogen, a 123% increase in available nitrogen, and a 473% increase in available phosphorus were recorded.”

✓ located verbatim in the source · abstract, characters 1466–1736 · show in text ↑
t0

“Eggplant growth in wheat straw-, wheat straw biochar- and compost-amended soils”

✓ located verbatim in the source · title, characters 0–79 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar raised soil organic carbon by 122% relative to control.

Taxon
eggplantSolanum melongenat0
Treatment
biochart0
Outcome
organic carbone0
Direction
increasee0
Value
122%e0
Comparator
controle0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“With respect to the control, a 20% decrease in bulk density, a 30% increase in water holding capacity, a 122% increase in organic carbon, a 175% increase in total nitrogen, a 123% increase in available nitrogen, and a 473% increase in available phosphorus were recorded.”

✓ located verbatim in the source · abstract, characters 1466–1736 · show in text ↑
t0

“Eggplant growth in wheat straw-, wheat straw biochar- and compost-amended soils”

✓ located verbatim in the source · title, characters 0–79 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar raised soil total nitrogen by 175% relative to control.

Taxon
eggplantSolanum melongenat0
Treatment
biochart0
Outcome
total nitrogene0
Direction
increasee0
Value
175%e0
Comparator
controle0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“With respect to the control, a 20% decrease in bulk density, a 30% increase in water holding capacity, a 122% increase in organic carbon, a 175% increase in total nitrogen, a 123% increase in available nitrogen, and a 473% increase in available phosphorus were recorded.”

✓ located verbatim in the source · abstract, characters 1466–1736 · show in text ↑
t0

“Eggplant growth in wheat straw-, wheat straw biochar- and compost-amended soils”

✓ located verbatim in the source · title, characters 0–79 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar raised soil available nitrogen by 123% relative to control.

Taxon
eggplantSolanum melongenat0
Treatment
biochart0
Outcome
available nitrogene0
Direction
increasee0
Value
123%e0
Comparator
controle0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“With respect to the control, a 20% decrease in bulk density, a 30% increase in water holding capacity, a 122% increase in organic carbon, a 175% increase in total nitrogen, a 123% increase in available nitrogen, and a 473% increase in available phosphorus were recorded.”

✓ located verbatim in the source · abstract, characters 1466–1736 · show in text ↑
t0

“Eggplant growth in wheat straw-, wheat straw biochar- and compost-amended soils”

✓ located verbatim in the source · title, characters 0–79 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar raised soil available phosphorus by 473% relative to control.

Taxon
eggplantSolanum melongenat0
Treatment
biochart0
Outcome
available phosphoruse0
Direction
increasee0
Value
473%e0
Comparator
controle0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“With respect to the control, a 20% decrease in bulk density, a 30% increase in water holding capacity, a 122% increase in organic carbon, a 175% increase in total nitrogen, a 123% increase in available nitrogen, and a 473% increase in available phosphorus were recorded.”

✓ located verbatim in the source · abstract, characters 1466–1736 · show in text ↑
t0

“Eggplant growth in wheat straw-, wheat straw biochar- and compost-amended soils”

✓ located verbatim in the source · title, characters 0–79 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Compost raised soil cation exchange capacity by 115% compared with 84% under wheat straw biochar.

Taxon
eggplantSolanum melongenat0
Treatment
compost amendmente0
Outcome
CECe0
Direction
increasee0
Value
115%e0
Qualifier
84% with WSBCe0
Comparator
controle0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Furthermore, with respect to the control, a 115% increase in CEC was recorded using the compost amendment vs 84% with WSBC.”

✓ located verbatim in the source · abstract, characters 1739–1862 · show in text ↑
t0

“Eggplant”

✓ located verbatim in the source · title, characters 0–8 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Wheat straw biochar raised soil cation exchange capacity by 84% relative to control.

Taxon
eggplantSolanum melongenat0
Treatment
WSBCe0
Outcome
CECe0
Direction
increasee0
Value
84%e0
Comparator
controle0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Furthermore, with respect to the control, a 115% increase in CEC was recorded using the compost amendment vs 84% with WSBC.”

✓ located verbatim in the source · abstract, characters 1739–1862 · show in text ↑
t0

“Eggplant”

✓ located verbatim in the source · title, characters 0–8 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar plus compost produced a 44% eggplant germination percentage.

Taxon
eggplantSolanum melongenat0
Treatment
biochar and composte0
Outcome
germination percentagee0
Direction
highe0
Value
44%e0

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Synergism between biochar and compost was reflected by high germination percentage (44%), number of fruits (600%), plant biomass weight (243%) and soil microbial biomass carbon (286%).”

✓ located verbatim in the source · abstract, characters 1863–2047 · show in text ↑
t0

“Eggplant”

✓ located verbatim in the source · title, characters 0–8 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar plus compost increased eggplant fruit number by 600%.

Taxon
eggplantSolanum melongenat0
Treatment
biochar and composte0
Outcome
number of fruitse0
Direction
highe0
Value
600%e0

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Synergism between biochar and compost was reflected by high germination percentage (44%), number of fruits (600%), plant biomass weight (243%) and soil microbial biomass carbon (286%).”

✓ located verbatim in the source · abstract, characters 1863–2047 · show in text ↑
t0

“Eggplant”

✓ located verbatim in the source · title, characters 0–8 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar plus compost increased eggplant plant biomass weight by 243%.

Taxon
eggplantSolanum melongenat0
Treatment
biochar and composte0
Outcome
plant biomass weighte0
Direction
highe0
Value
243%e0

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Synergism between biochar and compost was reflected by high germination percentage (44%), number of fruits (600%), plant biomass weight (243%) and soil microbial biomass carbon (286%).”

✓ located verbatim in the source · abstract, characters 1863–2047 · show in text ↑
t0

“Eggplant”

✓ located verbatim in the source · title, characters 0–8 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar plus compost increased soil microbial biomass carbon by 286%.

Taxon
eggplantSolanum melongenat0
Treatment
biochar and composte0
Outcome
soil microbial biomass carbone0
Direction
highe0
Value
286%e0

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Synergism between biochar and compost was reflected by high germination percentage (44%), number of fruits (600%), plant biomass weight (243%) and soil microbial biomass carbon (286%).”

✓ located verbatim in the source · abstract, characters 1863–2047 · show in text ↑
t0

“Eggplant”

✓ located verbatim in the source · title, characters 0–8 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Biomass amendment showed no positive influence.

Taxon
eggplantSolanum melongenat0
Treatment
Biomass amendmente0
Outcome
positive influencee0
Direction
failed to showe0

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Biomass amendment failed to show any positive influence.”

✓ located verbatim in the source · abstract, characters 2048–2104 · show in text ↑
t0

“Eggplant”

✓ located verbatim in the source · title, characters 0–8 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors conclude biochar is a superior soil amendment to biomass and compost.

Taxon
eggplantSolanum melongenat0
Outcome
biochar emerges as a superior choicee0
Comparator
both biomass and composte0

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In summary, biochar emerges as a superior choice compared to both biomass and compost when it comes to soil amendments.”

✓ located verbatim in the source · abstract, characters 2105–2224 · show in text ↑
t0

“Eggplant”

✓ located verbatim in the source · title, characters 0–8 · show in text ↑

biochar · molecular: metabolites · Solanum melongena (eggplant)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. no effect
See all 2 papers →

fertilization · molecular: metabolites · Solanum melongena (eggplant)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

biochar · growth · Solanum melongena (eggplant)Positive and negative results

15 papers: 14 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

11 papers more in this group

See all 15 papers →

fertilization · growth · Solanum melongena (eggplant)Positive and negative results

140 papers: 126 positive, 14 negative or no effect

125 papers in the same direction as this paper · 13 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

136 papers more in this group

See all 140 papers →

fertilization · yield · Solanum melongena (eggplant)Positive and negative results

219 papers: 194 positive, 25 negative or no effect

193 papers in the same direction as this paper · 23 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

215 papers more in this group

See all 219 papers →

biochar · soil: chemistry · Solanum melongena (eggplant)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

biochar · soil: biology · Solanum melongena (eggplant)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

biochar · nutrient: content · Solanum melongena (eggplant)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

8 of 11 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.