A field experiment was conducted during 2019–20 with an objective to study the effect of diversification of rice- wheat cropping system with different fodder, legume and high value crops for enhanced productivity and employment generation under irrigated ecosystem. The rice equivalent yield was maximum with sudan fodder (4412 kg/ha), capsicum (8371 kg/ha) and lady’s finger (6519 kg/ ha) for rainy (kharif), winter (rabi) and summer season, respectively. However, high value rice-potato-lady’s finger recorded significantly higher system productivity and was comparable to high value rice-capsicum-vegetable cowpea sequence. Cropping sequences containing more than one crop gave better land use efficiency and more employment generation opportunities by engaging more farm labours. Hence, both the sequences, S9 and S10 recorded higher land use efficiency and labour engagement over other crop sequences thus leading to better employment generation.

A field experiment was conducted with 10 crop sequences as treatments to find out nutrient dynamics and nutrient uptake pattern. This study was laid out in randomized block design with three replications. Among the different cropping sequence taken under study, sudan fodder- berseem- cowpea fodder recorded highest nitrogen (443.6 kg/ha), phosphorus (146.8 kg/ha) and potassium (306.3 kg/ha) uptake followed by cowpea fodder- berseem- maize fodder with 411, 105.9 and 274 kg/ha nitrogen, phosphorus and potassium, respectively. Both these crop sequences showed negative nitrogen balance in soil. Meanwhile potassium balance was negative for most of the sequences. However, high value rice- capsicum - vegetable cowpea registered lowest nitrogen (134.5 kg/ha) and potassium uptake (129.20 kg/ha) leading to a positive nitrogen and potassium balance. Bangladesh J. Bot. 51(3): 607-613, 2022 (September)

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