250 to 400 kg ha -1 is only 20-30% and hence at every harvest of the crop, soil suffers a net loss of 50-100 kg N/ha. One avenue to remediate the problem associated with synthetic N fertilizers is the use of microbes capable of biological N 2 fixation (BNF) (de Carvalho et al., 2011). Free-livingN 2 -fixing bacteria belonging to the genera Beijerinckia,

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The poultry sector continues to grow and industrialize in many parts of the world. The study was undertaken to analyze the marketing system of commercially produced eggs, estimate cost and margin of egg traders in some selected areas of Mymensingh district in Bangladesh in 2018. Sixty (60) respondents were selected as total sample size where 19 were layer farm owner and 48 were egg traders. Two Upazila of Mymensingh district (Mymensingh Sadar and Trishal) were selected based on the production concentration and marketing. Two villages from each Upazila were selected for survey and data were collected from the traders for the study. Five different channels were identified according to present egg marketing system. The average gross return of bepari, wholesaler and retailer for 100 eggs are found Tk. 26.67, Tk. 31.82 and Tk. 37.14, respectively. The average cost of bepari, wholesaler and retailer for 100 eggs were found Tk.11.41, Tk.13.54 and Tk.15.78, respectively. The net margin of 100 eggs were calculated and found Tk.15.26, Tk. 18.28 and Tk. 21.37 respectively for bepari, wholesaler and retailer. The producer share was higher i.e. 86.56% and price spread was lower (Tk. 85.84) in channel IV. In case of efficiency channel IV was more efficient than other channels. Results suggested that, development of this enterprise is helpful in employment generation and poverty alleviation. The outcomes of this study may contribute to accurate and reliable data and other necessary information from the field level and future egg marketing system of various regions in Bangladesh.