Author(s): Hirday Narayan Tiwari, Dharmesh Kumar Singh, Sudhakar Singh, Gajendra Singh and Deepak Gahlaut

Abstract: The present experiment entitled “Effect of vermicompost and inorganic nutrient on growth and yield of mustard (Brassica juncea L.) under middle zone of U.P.” was carried out at Shradheya Bhagwati Singh Agriculture Research Farm, Hajipur, Chandra Bhanu Gupta Krishi Snatkottar Mahavidyalaya, BKT, Lucknow (UP). The experiment was laid down in randomized block design with 15 treatment viz No Vermicompost + No nutrient management (T₁), No Vermicompost + S @ 40 kg/ha (T₂), No Vermicompost + S @ 40 kg/ha + Fe @ 9.5 kg/ha (T₃), No Vermicompost + S @ 40 kg/ha +ZN @ 5 kg/ha (T₄), No Vermicompost + S @ 40 kg/ha + Fe @ 9.5 kg/ha +ZN @ 5 kg/ha (T₅), Vermicompost @ 2 q/ha + No nutrient management (T₆), Vermicompost @ 2 q/ha + S @ 40 kg/ha (T₇), Vermicompost @ 2 q/ha + S @ 40 kg/ha + Fe @ 9.5 kg/ha (T₈), Vermicompost @ 2 q/ha + S @ 40 kg/ha +ZN @ 5 kg/ha (T₉), Vermicompost @ 2 q/ha + S @ 40 kg/ha + Fe @ 9.5 kg/ha +ZN @ 5 kg/ha (T₁₀), Vermicompost @ 4 q/ha + No nutrient management (T₁₁), Vermicompost @ 4 q/ha + S @ 40 kg/ha (T₁₂), Vermicompost @ 4 q/ha + S @ 40 kg/ha + Fe @ 9.5 kg/ha (T₁₃), Vermicompost @ 4 q/ha + S @ 40 kg/ha +ZN @ 5 kg/ha (T₁₄) and Vermicompost @ 4 q/ha + S @ 40 kg/ha + Fe @ 9.5 kg/ha +ZN @ 5 kg/ha (T₁₅) with three replications during rabi season of 2021-22. It is evident from summary of data that different treatments have their pronounced impact on all growth parameters viz plant height and number of branches per plant as well as yield attributes (No. of silique per plant, No. of seed per silique) and yield. Maximum and significantly higher values of these traits was noted with treatment T₁₅ (Vermicompost @ 4 q/ha + S @ 40 kg/ha + Fe @ 9.5 kg/ha +ZN @ 5 kg/ha) as compared to rest treatments.

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