Abstract
Papaya (Carica papaya L.) is a heavy feeder of nutrients. To maintain the continuous growth and fruiting, heavy doses of fertilizers should be applied at frequent intervals which may lead to unsustainability of the present day agricultural system causing soil deterioration and environmental pollution. Hence, there is a need to shift from conventional nutrient management system to integrated nutrient management system. As the biofertilizers are the essential components of integrated nutrient management, an investigation was conducted at Horticulture Research Station of Bidhan Chandra Krishi Viswavidyalaya, Mondouri, Nadia, West Bengal to study the efficacy of PSM (Bacillus megatherium + Aspergillus awamori) and VAM (Glomus mosseae + G. fasciculatum) biofertilizers with graded levels of phosphorus (P 2 O 5 at 50, 100, 150 and 200 g) on growth and nutrient uptake of papaya. Maximum plant height (192.67 cm), girth (24.00 cm) and total number of leaves (25.17) were observed in VAM + 200 g P 2 O 5 . VAM were also found more effective in increasing height and girth than PSM. Early flowering was noticed due to application of increased phosphorus level and biofertilizer inoculation. Highest yield (64.85 tonnes/ha) was resulted due to the inoculation effect of PSM and 200 g P 2 O 5 treatment combination. P and K content of leaves increased with increasing phosphorus level and biofertilizer application.
Published Version
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