Abstract
This study demonstrated the conversion of a harmful weed into value-added product, biochar. Pyrolysis of water hyacinth biomass was carried out in a semi-automated charcolator at 500 ºC (yield 36.7% ± 1.2%) and applied into the soil at three different concentrations (low, medium, and high). The biochar presented alkaline pH (8.4±0.04), moderate cation exchange capacity (1.83±0.04 meq/100g) and moderate electrical conductivity (2709±44.73 μS/cm). Fourier-transform infrared spectra indicated diverse types of functional groups (phenols, alcohols, unsaturated carbon compounds, and aromatic compounds) in Eichhornia crassipes biochar (ECB). Scanning electron microscopy and element dispersive X-ray analysis confirmed the high porosity (2.5 µm to 7.8 µm) and abundance of micro and macronutrients on biochar surface. Thermogravimetric analysis of ECB showed high thermal stability. Ameliorated soil edaphic parameters improved plant growth conditions. ECB added at medium concentration, remarkably increased shoot length and germination, and those of ECB added at high concentration recorded the highest chlorophyll content (60.5 SPAD). The experimental results showed favorable prospects for sustainable waste biomass recycling to produce valuable biochar, enhance soil health, and increase productivity of okra (Abelmoschus esculentus L.).
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Claims 3
Claim · model-written summary
Medium biochar concentration increased okra shoot length.
- Taxon
- okra
.jpg?width=60)
Abelmoschus esculentust0 - Treatment
- ECB added at medium concentratione0
- Outcome
- shoot lengthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“ECB added at medium concentration, remarkably increased shoot length and germination”
t0“okra productivity”
Claim · model-written summary
Medium biochar concentration increased okra germination.
- Taxon
- okraAbelmoschus esculentust0
- Treatment
- ECB added at medium concentratione0
- Outcome
- germinatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ECB added at medium concentration, remarkably increased shoot length and germination”
t0“okra productivity”
Claim · model-written summary
High biochar concentration yielded the highest okra chlorophyll content of 60.5 SPAD.
- Taxon
- okraAbelmoschus esculentust0
- Treatment
- ECB added at high concentratione0
- Outcome
- chlorophyll contente0
- Direction
- higheste0
- Value
- 60.5 SPADe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ECB added at high concentration recorded the highest chlorophyll content (60.5 SPAD)”
t0“okra productivity”
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