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Start Over Author "Islam, M.A." Publisher elsevier bv
165 results on '"Islam, M.A."'

33. Seasonality of Human Influenza and Co-Seasonality with Avian Influenza in Bangladesh, 2010-2019

Author

Berry, I., primary, Mangtani, P., additional, Rahman, M., additional, Greer, A., additional, Morris, S., additional, Anwar, R., additional, Lisa, M., additional, Shirin, T., additional, Islam, M.A., additional, Chowdhury, F., additional, Dunkle, S., additional, Brum, E., additional, Osmani, M.G., additional, Flora, M.S., additional, and Fisman, D., additional

Published
2022
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44. Biometric indices of five miniature fish from the catchment area of Kaptai Lake, Bangladesh

Author

Hanif, M.A., Siddik, M.A.B., Islam, M.A., Rumpa, R.J., Hanif, M.A., Siddik, M.A.B., Islam, M.A., and Rumpa, R.J.

Abstract

The present study reports on biometric indices comprising length-weight relationships (LWRs) of five miniature freshwater fish species from the Kaptai Lake, the largest lake in the People's Republic of Bangladesh. The study area included 3 stations in the 11,122 km2 catchment area of the lake and each station was sampled from November 2017 to April 2018 using push net (mesh size 2 mm) for capturing the species. The values of growth coefficient b of the LWRs (W = aTLb) of the species Oryzias dancena, Oryzias melastigma, Gobiopterus chuno, Brachygobius nunus and Badis chittagongis were 2.9575, 3.1467, 3.0535, 3.058 and 2.9396 with above 0.95 coefficient of correlation (r2). These results represent the first study of LWRs for these fish species which may help in management and conservation of the species in the whole country, including its geographical distribution.

Published
2020

45. Soil nitrogen storage and availability to crops are increased by conservation agriculture practices in rice–based cropping systems in the Eastern Gangetic Plains

Author

Alam, M.K., Bell, R.W., Haque, M.E., Islam, M.A., Kader, M.A., Alam, M.K., Bell, R.W., Haque, M.E., Islam, M.A., and Kader, M.A.

Abstract

On-farm adoption of minimum soil disturbance and increased residue retention will alter nitrogen (N) dynamics in soils and N fertiliser management in the intensive rice–based triple cropping systems of the Eastern Gangetic Plains. However, the consequences of changes in N forms, N mineralisation and its availability for crops have not been determined. Field experiments were conducted at two locations (Alipur and Digram) of north–west Bangladesh (NWB) to examine N cycling under three planting practices (conventional tillage (CT), strip planting (SP) and bed planting (BP)) with increased (HR) or low residue retention (LR– the current practice) on Calcareous Brown Flood Plain and Grey Terrace soils. Total N and available N were measured on soil samples as was N uptake by crops at different growth stages in the 13–14th (Alipur) and 12–13th (Digram) crops since treatments commenced. At each location (0–10 cm soil depth), SP, including non–puddled transplanting of rice seedlings (NP), together with HR increased total N by 9 and 32 % relative to BPHR, and CTHR and by 62 % relative to the current farm practice (CTLR). In general, the cumulative available N in soils during mustard and rice cropping under CT with HR was higher than other crop establishment and residue retention practices while under wheat and jute, total availability of N did not vary among crop establishment types with increased residue retention. Nitrogen availability in the initial phase of crop growth (0–60 DAS) was generally higher with CT than SP and BP. By contrast, for all crops, the estimated potentially mineralisable N was higher and its decay rate was lower under SPHR than other crop establishment and residue retention practices. Conservation Agriculture practices (SP, and NP of rice, together with HR) have altered the N cycling by reducing the level of mineral N available to plants in the early growing season when crop demand is low, but by increasing soil total N (0−10 cm) and plant N uptake whic

Published
2020

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