Inderscience Publishers

Conversion of solid organic waste into compost using Trichoderma spp. and its application on some selected vegetables

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This study was conducted to evaluate the potentiality of
Trichoderma
species as a bio-conversion agent for composting of solid organic waste and examine the effects of produced composts on the growth of two types of vegetables. The experiments were conducted both in vitro and in vivo processes. In vitro conversion of solid organic waste, the highest height and weight losses were found 42.64 and 31.45%, respectively using
Trichoderma harzianum
(IES-103) after 30 days of composting. In vivo conversion of solid organic waste for the same strain under aerobic condition, the highest height and weight losses were 33.22 and 61.25%, respectively. In the field application, the highest plant height of
Amaranthus lividus
(Amaranth Red Leaf) and
Basella alba
(Malabar spinach) were found 74 and 136 cm after 33 and 45 days, respectively of composting obtained using the strain of
Trichoderma harzianum
(IES-103). In this study, the results showed that
Trichoderma harzianum
(IES-103) was the most effective strain on the basis of height and weight loss (%) for the degradation of solid organic waste. It also illustrates that the compost obtained from the fungi
Trichoderma harzianum
could be used as an effective soil amendment and nutrient source (fertiliser) to improve growth and yields of vegetables.

Keywords: bioconversion, compost, solid waste, Trichoderma, vegetables

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