BIODEGRADATION OF Calophyllum inophyllum FRUIT HUSK
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Date
2015-08-18
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU
Abstract
An experiment was conducted to study the “Biodegradation of
Calophyllum inophullum fruit husk” with de-oiled cake as a source of N and
Di-Ammonium Phosphate as a source of P with and without microbial consortium
consisting of mixture of Trichoderma viridae, Phanaerochyte crysosporium and
Trichurus spiralis under the laboratory conditions. The fruit husk was subjected to
decomposition for a period of 90 days in plastic containers of capacity five kgs.
The initial CN ratio of fruit husk was 64:1 which has reduced to 16:1 and
contained N (2.40%), P (0.84%) and K (1.76%) in the treatment with
Calophyllum fruit husk + de-oiled cake + microbial consortium + DAP satisfying the
degree of compost maturity, NPK content and C: N ratio. The treatment with
Calophyllum fruit husk + de-oiled cake + microbial consortium recorded significantly
higher loss in weight of the substrate. The effect of enriched bio-compost thus
obtained after 90 days of decomposition was tested on maize crop under green house
conditions. It was found to have enhanced growth parameters in terms of total height
of the plant, number of leaves and total biomass on maize crop in the treatment
Calophyllum fruit husk + de-oiled cake + microbial consortium + DAP and was also
on par with the treatment with Calophyllum fruit husk + de-oiled cake + microbial
consortium indicating, that in the presence of oil cake as a source of N, microbial
consortium can bring about faster decomposition of Calophyllum fruit husk and also
can influence the plant growth
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