Vol. 8 No. 1
Effect of organic manures and microbial inoculants on soil nutrient availability and yield of turmeric intercropped in arecanut gardens
Author(s): S.S. ROY AND J. K. HORE
Abstract: The combination of organic manures and microbial inoculants viz. Azospirillum brasinese and AM (Glomus fasciculatum) were tried for the organic production of turmeric grown as intercrop in arecanut plantation of six years old. The experiment was laid out in RED with three replication for consecutive two years (2005-2006) at Horticultural Research Station, Mondouri, BCKV, Nadia, West Bengal. A significant difference in the rhizome yield was noticed when organic manure-microbial inoculants combination was compared with recommended dose of fertilizers (inorganic). Among different treatment combinations tried, the most effective treatment was vermicompost+Azospirillum+AM (28.94 t ha-1), followed by compost+Azospirillum+AM (26.93 t ha-1), as compared to recommended inorganic NPK (24.11 t ha-1). The soil under vermicompost+Azospirillum+AM showed maximum organic carbon content (0.71%) and available potassium (209.09 kg ha-1) after harvest; whereas maximum available nitrogen (253.05 kg ha-1) and phosphorous (29.44 kg ha-1) were noticed in mustard cake+Azospirillum and phosphocompost+Azospirillum+AM respectively. In general a higher build up of soil nutrients was observed after the experimentation for organic manure-microbial inoculants combinations compared to inorganic management.
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