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Characterisation of Biochar From Water Hyacinth Eichhornia crassipes and the Effects of Biochar on the Growth of Fish and Paddy in Integrated Culture Systems

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Relation http://eprints.cmfri.org.in/13970/
https://www.jcronline.org/doi/full/10.2112/SI86-032.1
10.2112/ SI86-033.1
 
Title Characterisation of Biochar From Water Hyacinth Eichhornia
crassipes and the Effects of Biochar on the Growth of Fish and Paddy
in Integrated Culture Systems
 
Creator Najmudeen, T M
Febna, M A
Rojith, G
Zacharia, P U
 
Subject Farming/Culture
Climate change
 
Description Conversion of water hyacinth into useful products is a sustainable way to address the menaces created by
them, along with an exploration of beneficial applications. The present study focused on the conversion of
water hyacinth into a climate-resilient product ‘biochar’ and its applications in integrated paddy and fish
culture systems. The integrated culture of fish with a saline tolerant variety of paddy Pokkali is characterised
by low productivity as a traditional culture method. Biochar was produced by pyrolysis technique with water
hyacinth, Eichhornia crassipes as substrate. The elemental composition and structural characterization of
biochar were done using CHNS analyser, FTIR, XRD, and SEM, respectively. Optimum pyrolysis conditions
were finalized and pyrolysis at 300oC for 30 minutes was used for the production of sufficient quantities of
biochar for further experiments. Biochar was incorporated into the feed of tilapia, Oreochromis mossambicus
in the ratio of 0.5 and 1% and was fed to the fishes grown in tanks for 6 weeks. Weight and length of the fish
were found to be enhanced significantly in biochar mixed feed, and the highest growth rate was recorded for
the fishes fed with 1% of biochar mixed feed. Biochar amendment to the soil in the culture system at 1%
concentration enhanced the specific growth rate of O. mossambicus. Varying proportions of biochar were
mixed to soil @ 1, 2, 3, 4 and 5% and the effect of biochar-amended soil on the growth of pokkali was studied
for the parameters, root length, shoot length and plant height. Highest growth performances were observed in
4% biochar-soil mixture in comparison to the control. The results of water hyacinth biochar experimentation
on fish and paddy growth have been promising, and the work could be considered as a milestone towards
further optimization and field level trials to enhance the productivity of integrated culture systems.
 
Date 2019
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/13970/1/Journal%20of%20Coastal%20Research_2019_T%20M%20Najmudeen_Characterisation%20of%20Biochar%20From%20Water%20Hyacinth%20Eichhornia.pdf
Najmudeen, T M and Febna, M A and Rojith, G and Zacharia, P U (2019) Characterisation of Biochar From Water Hyacinth Eichhornia crassipes and the Effects of Biochar on the Growth of Fish and Paddy in Integrated Culture Systems. Journal of Coastal Research, 86. pp. 218-244.