Vol. 11, Issue 4 (2022)

Author(s):
Bhavana Dhaker, BG Chhipa, RK Sharma and Piyush Choudhary

Abstract:
A field experiment was conducted to find out the effect of organic manures with or without PSB and Azotobactor on yield, quality and economics of onion (Agri found dark red) on a clay loam soil. The treatments comprised of organic, inorganic fertilizer and biofertilizers with ten treatments i.e. 100% RDF through inorganic, 100% RDF through FYM (N Basis), 100% RDF through vermicompost,50% RDF through Inorganic Fertilizers + 50% through FYM, 50% RDF through Inorganic Fertilizers + 50% through vermicompost, 5 0% RDF through Inorganic Fertilizers + 50% through FYM + PSB, 50% RDF through Inorganic Fertilizers + 50% through vermicompost + PSB, 50% RDF through Inorganic Fertilizers + 25% vermicompost + PSB, 100% RDF through FYM (N Basis) + PSB + Azotobactor and 100% RDF through vermicompost + PSB + Azotobactor. Growth parameters like plant height (cm), number of leaves, fresh weight of leaves (g plant^-1) and dry weight of leaves (g plant^-1) were significantly influenced with 100% RDF through Vermicompost + PSB + ^Azotobactor at 30 and 60 days of transplanting. The diameter of bulb (cm), bulb weight (g), bulb yield (q ha^-1), total soluble solid (0B) and allyl propyl content (ppm) significantly increased with 100% RDF through Vermicompost + PSB + Azotobactor). Similarly, Application of 100% RDF applied through vermicompost + PSB + Azotobactor (T10) recorded maximum gross returns, net return and cost benefit ratio of onion crop.