Paper · 2025 · Sustainability

Effect of Cattails (Typha angustifolia L.) Biochar on Soil Fertility and Okra Productivity as an Effective Eco-Friendly Soil Amendment

Muntaha Munir; Aisha Nazir; Adam Khan; et al.

14
claims
28
verbatim quotes
4
citations
2
research areas
✓
Open access · cc-by

Abstract

The conversion of aquatic biomass into biochar offers a sustainable strategy for improving soil fertility and mitigating ecological imbalances caused by its rapid proliferation. In this study, Typha angustifolia, a widely distributed aquatic weed, was utilized for biochar production. Three biochar types (TABC400, TABC500, and TABC600) were synthesized through pyrolysis at 400 °C, 500 °C, and 600 °C temperature. It was hypothesized that Typha angustifolia biochar would positively influence the growth and development of okra (Abelmoschus esculentus L.). The results demonstrate that biochar yield subsequently decreases with increasing pyrolysis temperature, with the highest yield at 400 °C temperature (49.03%), followed by 500 °C (38.02%) and 600 °C temperature (32.01%). However, carbon content 67.01 to 83.12%, higher heating value (17.31 to 27.42 MJ/kg), and mineral contents (K, Mg, P, Ca, Fe, Cu, Zn) increase significantly with higher pyrolysis temperature. However, oxygen, hydrogen, nitrogen, bulk density, moisture contents, and volatile context exhibited an inverse relationship with pyrolysis temperature, highlighting biochar stability and its potential for soil amendment. Among the three synthesized biochar, the 4%TABC600 (600 °C) revealed the most substantial improvement in plant height (110.11 ± 4.12 cm), plant dry biomass (6.12 ± 0.41 gm), and chlorophyll contact (39.34 ± 3.33 SPAD values), whereas the 2% and 6% TABC600 demonstrated significant influence on fruit yield (9.11 ± 2.11 gm) and fruit weight (750.44 ± 7.83 g), and chlorophyll contact (32–38 SPAD values). Based on our results, we can conclude that Typha angustifolia biochar prepared at 600 °C (TABC600) has great potential as a biofertilizer, promoting soil fertility and growth and development of crops, particularly for vegetable cultivation such as okra.

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 14

Observationobservedoriginal resultmeasured

Claim · model-written summary

Biochar yield decreased as pyrolysis temperature increased, with 49.03% at 400 °C.

Outcome
biochar yielde0
Direction
decreasese0
Value
49.03%e0

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“biochar yield subsequently decreases with increasing pyrolysis temperature, with the highest yield at 400 °C temperature (49.03%)”

✓ located verbatim in the source · abstract, characters 587–716 · show in text ↑
t0

“Okra”

✓ located verbatim in the source · title, characters 73–77 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Biochar yield was 38.02% at 500 °C.

Outcome
biochar yielde0
Value
38.02%e0

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“biochar yield subsequently decreases with increasing pyrolysis temperature, with the highest yield at 400 °C temperature (49.03%), followed by 500 °C (38.02%) and 600 °C temperature (32.01%)”

✓ located verbatim in the source · abstract, characters 587–777 · show in text ↑
t0

“Biochar on Soil Fertility and Okra Productivity”

✓ located verbatim in the source · title, characters 43–90 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Biochar yield was 32.01% at 600 °C.

Outcome
biochar yielde0
Value
32.01%e0

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“biochar yield subsequently decreases with increasing pyrolysis temperature, with the highest yield at 400 °C temperature (49.03%), followed by 500 °C (38.02%) and 600 °C temperature (32.01%)”

✓ located verbatim in the source · abstract, characters 587–777 · show in text ↑
t0

“Biochar on Soil Fertility and Okra Productivity”

✓ located verbatim in the source · title, characters 43–90 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Carbon content increased with pyrolysis temperature.

Outcome
carbon contente0
Direction
increasee0
Value
67.01 to 83.12%e0

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“carbon content 67.01 to 83.12%, higher heating value (17.31 to 27.42 MJ/kg), and mineral contents (K, Mg, P, Ca, Fe, Cu, Zn) increase significantly with higher pyrolysis temperature”

✓ located verbatim in the source · abstract, characters 788–969 · show in text ↑
t0

“Okra”

✓ located verbatim in the source · title, characters 73–77 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Higher heating value increased with pyrolysis temperature.

Outcome
higher heating valuee0
Direction
increasee0
Value
17.31 to 27.42 MJ/kge0

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“higher heating value (17.31 to 27.42 MJ/kg), and mineral contents (K, Mg, P, Ca, Fe, Cu, Zn) increase significantly with higher pyrolysis temperature”

✓ located verbatim in the source · abstract, characters 820–969 · show in text ↑
t0

“Okra”

✓ located verbatim in the source · title, characters 73–77 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Mineral contents increased with pyrolysis temperature.

Outcome
mineral contentse0
Direction
increasee0

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“mineral contents (K, Mg, P, Ca, Fe, Cu, Zn) increase significantly with higher pyrolysis temperature”

✓ located verbatim in the source · abstract, characters 869–969 · show in text ↑
t0

“Okra”

✓ located verbatim in the source · title, characters 73–77 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Oxygen, hydrogen and nitrogen decreased with pyrolysis temperature.

Outcome
oxygen, hydrogen, nitrogene0

Not reportedDirection

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“oxygen, hydrogen, nitrogen, bulk density, moisture contents, and volatile context exhibited an inverse relationship with pyrolysis temperature”

✓ located verbatim in the source · abstract, characters 980–1122 · show in text ↑
t0

“Okra”

✓ located verbatim in the source · title, characters 73–77 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Bulk density, moisture and volatile content decreased with pyrolysis temperature.

Outcome
bulk density, moisture contents, and volatile contexte0

Not reportedDirection

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“bulk density, moisture contents, and volatile context exhibited an inverse relationship with pyrolysis temperature”

✓ located verbatim in the source · abstract, characters 1008–1122 · show in text ↑
t0

“Okra”

✓ located verbatim in the source · title, characters 73–77 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

4% TABC600 gave the greatest plant height, 110.11 ± 4.12 cm.

Treatment
4%TABC600e0
Outcome
plant heighte0
Direction
improvemente0
Value
110.11 ± 4.12 cme0

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“the 4%TABC600 (600 °C) revealed the most substantial improvement in plant height (110.11 ± 4.12 cm)”

✓ located verbatim in the source · abstract, characters 1230–1329 · show in text ↑
t0

“Okra”

✓ located verbatim in the source · title, characters 73–77 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

4% TABC600 gave plant dry biomass of 6.12 ± 0.41 gm.

Treatment
4%TABC600e0
Outcome
plant dry biomasse0
Direction
improvemente0
Value
6.12 ± 0.41 gme0

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“the 4%TABC600 (600 °C) revealed the most substantial improvement in plant height (110.11 ± 4.12 cm), plant dry biomass (6.12 ± 0.41 gm)”

✓ located verbatim in the source · abstract, characters 1230–1365 · show in text ↑
t0

“Okra”

✓ located verbatim in the source · title, characters 73–77 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

4% TABC600 gave chlorophyll of 39.34 ± 3.33 SPAD.

Treatment
4%TABC600e0
Outcome
chlorophyll contacte0
Direction
improvemente0
Value
39.34 ± 3.33 SPAD valuese0

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“the 4%TABC600 (600 °C) revealed the most substantial improvement in plant height (110.11 ± 4.12 cm), plant dry biomass (6.12 ± 0.41 gm), and chlorophyll contact (39.34 ± 3.33 SPAD values)”

✓ located verbatim in the source · abstract, characters 1230–1417 · show in text ↑
t0

“Okra”

✓ located verbatim in the source · title, characters 73–77 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

2% and 6% TABC600 significantly affected fruit yield.

Treatment
2% and 6% TABC600e0
Outcome
fruit yielde0
Value
9.11 ± 2.11 gme0

Not reportedComparatorDirection

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“the 2% and 6% TABC600 demonstrated significant influence on fruit yield (9.11 ± 2.11 gm)”

✓ located verbatim in the source · abstract, characters 1427–1515 · show in text ↑
t0

“Okra”

✓ located verbatim in the source · title, characters 73–77 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

2% and 6% TABC600 significantly affected fruit weight.

Treatment
2% and 6% TABC600e0
Outcome
fruit weighte0
Value
750.44 ± 7.83 ge0

Not reportedComparatorDirection

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“the 2% and 6% TABC600 demonstrated significant influence on fruit yield (9.11 ± 2.11 gm) and fruit weight (750.44 ± 7.83 g)”

✓ located verbatim in the source · abstract, characters 1427–1550 · show in text ↑
t0

“Okra”

✓ located verbatim in the source · title, characters 73–77 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

2% and 6% TABC600 significantly affected chlorophyll.

Treatment
2% and 6% TABC600e0
Outcome
chlorophyll contacte0
Value
32–38 SPAD valuese0

Not reportedComparatorDirection

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“the 2% and 6% TABC600 demonstrated significant influence on fruit yield (9.11 ± 2.11 gm) and fruit weight (750.44 ± 7.83 g), and chlorophyll contact (32–38 SPAD values)”

✓ located verbatim in the source · abstract, characters 1427–1595 · show in text ↑
t0

“Okra”

✓ located verbatim in the source · title, characters 73–77 · show in text ↑

biochar · growth · Abelmoschus esculentus (okra)Positive and negative results

16 papers: 14 positive, 2 negative or no effect

13 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive

12 papers more in this group

See all 16 papers →

biochar · yield · Abelmoschus esculentus (okra)Positive and negative results

20 papers: 19 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

16 papers more in this group

See all 20 papers →

biochar · physiology: pigments · Abelmoschus esculentus (okra)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 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.