Field evaluation of vermicompost and selective bioinoculants for the improvement of health status of tomato plants

Priyanka Bhattacharjee, Bishwanath Chakraborty, Usha Chakraborty


The effect of a combination of known beneficial microorganisms and vermicompost was studied on growth enhancement and yield parameters of two varieties of tomato. Microorganisms used were Bacillus pumilus, Glomus mosseae and Trichoderma harzianum. Vermicompost was prepared using cow dung and aquatic weeds i.e., Eichhornia using earthworms (Eisenia fetida). The experimental results showed significant variations in plant growth and yield according to the different treatments. The growth parameters such as plant height, number of fruits were observed at 15 days interval form the date of transplanting seedlings to the field. Maximum enhancement of growth and yield was observed in tomato plants treated with vermicompost alone followed by vermicompost along with all microorganisms and then vermicompost + plant growth promoting bacteria (PGPR). Biochemical components of leaves such as total soluble protein, phenols and chlorophyll as well as antioxidants such as ascorbate and carotenoids were also enhanced to varying degrees by the treatments. Besides, lycopene content of fruits also increased by different treatments. Results clearly indicate that vermicomposting alone or with additional microorganisms not only increase growth and yield but also enhance the quality parameters.   


Vermicompost, PGPR, VAM, Trichoderma, tomatoVermicompost; Plant growth promoting bacteria (PGPR); Mycorrhizal inoculation (VAM); Trichoderma; Tomato

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