Effect of organic sources of nutrients on soil fertility, growth and yield of elephant foot yam (amorphophallus paeoniifolius l.)

A field experiment was conducted during the Kharif Season of 2024-2025 to evaluate the effect of different organic sources of nutrients on growth and yield of elephant foot yam and influence of nutrient sources on status of soil fertility. The experiment was laid out in ten treatments and three replications with RBD. Organic nutrient sources included wheat straw, flower waste, compost,vermi compost, farm yard manure (FYM) and poultry manure applied at different rates.Results revealed that vermi compost@ 40 t ha-1recorded the highest plant height (68.00 cm) T4 and maximum corm yield T4(18.55 t ha-1). Soil fertility parameters such as organic carbon, available nitrogen, phosphorus, potassium and sulphur were significantly influenced by the application of organic treatments. T7 (Compost @20tha-1) resulted to increase the highest available nitrogen (338.69kg ha-1). While T6 (FYM @40 t ha-1) recorded maximum Available phosphorus (21.79 kg ha-1). T2(flower wastes @ 60 t ha-1) recorded maximum available potassium (331.89 kg ha-1) and T4(Vermicompost @ 40t ha-1) resulted to increase the highest available sulphur (2.44mg kg-1)organic manures, particularly vermicompost and FYM improved crop productivity and soil health making then suitable for sustainable elephant foot yam cultivation.