Effect of various doses of cowdung and nitrogen on the yield performance of mustard in coastal area of Bangladesh (Brassica sp.)

The experiment was conducted at the agriculture field laboratory of Noakhali Science and Technology University during period from October 2021 to January 2022 observe effect various doses cowdung nitrogen on performance mustard. comprised two factors viz: nitrogen. One organic fertilizer like different level cowdung-control 0 t ha-1 (C0), 15 (C1), 30 (C2), 45 (C3) another inorganic - control kg (N0), 100 (N1), 200 (N2), 300 Kg (N3). laid out in Randomized Complete Block Design (RBCD) with three replications. Application significantly influenced Plant height (cm), branches plant-1 (no.), effective siliqua seeds siliqua-1 1000-seed weight (g), seed yield (t ha-1), stover biological ha-1) harvest index (%) maximum plant height, number plant-1, length, siliqua-1, weight, yield, obtained application (C3). On other hand, N siliqua, found except index. In case interaction treatment, highest (1.77 treatment combination C3N3 (45 + N) lowest (0.93 (C0N0) treatment. Res. Agric. Livest. Fish. Vol. 10, No. 2, August 2023: 109-122