Effect of organic and inorganic fertilizer on growth, yield of beetroot (Beta vulgaris L.) cv. Detroit Dark Red

Present investigation entitled, "Effect of organic and inorganic fertilizer on growth, yield of beetroot ( Beta vulgaris L.) cv. Detroit Dark Red" was conducted at Agricultural Research Farm of Raja Balwant Singh College, Bichpuri, Agra during rabi season of the year 2022-23. The treatments involved in this study were 100% RDF (T ₀ ), 75% RDF + 25% Vermicompost (T ₁ ), 75% RDF + 25% Poultry manure (T ₂ ), 75% RDF + 12.5% Vermicompost + 12.5% Poultry manure (T ₃ ), 50% RDF + 50% Vermicompost (T ₄ ), 50% RDF + 50% Poultry manure (T ₅ ), 50% RDF + 25% Vermicompost + 25% Poultry manure (T ₆ ), 25% RDF + 75% Vermicompost (T ₇ ), 25% RDF + 75% Poultry manure (T ₈ ), 25%RDF + 37.5% Vermicompost + 37.5% Poultry manure(T ₉ ) and 50% Vermicompost + 50% Poultry manure (T ₁₀ ). From the above treatment combinations T ₁ proved to be best on all growth and yield parameters with maximum germination percentage and least no of days taken to germination, highest plant height (35.83 cm), number of leaves per plant (19.55 ), length of longest leaf (37.96cm) ,width of longest leaf (09.27 cm),diameter of root at shoulder point(04.87 cm) ,volume of roots (225.60 ml), fresh weight of leaves (189.10 g) ,Fresh weight of roots(271.77 g) ,average yield per plot(11.82 kg), average yield (394.00 quintals ha ^{− 1),Dry weight of root (18.84%), Dry weight of leaves (12.17%) and benefit cost ratio (5.249) among all the treatments tested} .On the basis of results obtained it was concluded that application of 75% RDF through inorganic fertilizer in combination with 25% of the RDF through vermicompost is best for beetroot cultivation.