Effects of in-situ and ex-situ vermicomposting on morphology, yield and quality attributes of mango (Mangifera indica L.) cv. Amrapali under high density planting

The present experiment was conducted at horticulture garden, Bihar Agricultural university, Sabour Bhagalpur, Bihar during 2014-15 and 2015-16 to find out the Effects of in-situ and ex-situ vermicomposting on morphology, yield and quality attributes of mango (Mangifera indica L.) cv. Amrapali under high density planting. The experiment was laid out in Randomized Block design with three treatment replicated thrice with two tree per replication. The treatment consisted as three different doses of vermicompost i.e. In-situ vermicomposting and Vermicompost @ 4.0 kg/tree and Control. The two years pooled data indicated that the highest morphological characters like per cent increase in tree height (25.42%), canopy spreads (N-S 13.82%, E-W 12.54%), canopy volume (13.04%) and physical parameters of fruits like fruit width (6.50cm), weight (169.29g) and volume (167.45cm3), as well as pulp weight (108.17 g/fruit), stone weight (27.21 g/fruit), peel weight (28.28 g/fruit) and bio-chemical compounds of fruits like TSS (21.99 0B), total sugars (17.22%), total carotenoids content (17.65 mg/100g pulp) and ascorbic acid content (35.70 mg/100g pulp) were observed with in-situ vermicomposting (V2). Whereas, fruiting behaviour i.e. highest fruit set (13.96%) and bio-chemical compound i.e. TSS/acidity ratio (132.31), minimum titrable acidity (0.172 %) and yield (9.89 kg/tree) were recorded with the application of vermicompost @ 4.0 kg/tree (V1).