Browsing by Author "Hasanuzzaman, M."

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EFFECT OF DIFFERENT LEVELS OF LIGHT INTENSrTY ON MORPHOPHYSIOLOGY AND YIELD OF BRINJAL (Solanum melongena L.)
(Sher-e-Bangia Agricultural University Research System (SAURES), 2020-07) Kabir, M.; Hossain, M.F.; Hasanuzzaman, M.; Habib, Z.F.B.; Mahmud, J.A.
Low light stress i, a limiting factor tor crop production especially In agroforestry system. A POI experiment was conducted at Shcr-e-Bungla Agricultural University. Dhaka- 1207. dunng the month ...of October 2019 to mid April 2020. Three brinjal varieties viz. VI (OARI Begun-I), V. (BARl Begun-I). V, (BARI Begun-v) were CXP(h~-d to four light intensity (100.75.50 and 2500 I'AR which indicate control SI. S: and S, respccuvely) to evaluate their performances, Light ~trc,~ (rnarnly S: and S,) sub tantially hampered the plant growth, development :I:. well as yield. Low lIght 'tre~. primarily reduced the phorosymhcuc performance of plants which contribute in reduction of plant heIght. number of primary branches and leaves of all bnnjal plants. Moreover low light intensity negatively affects the fresh and dry weight. It also decreased number of fruits, fruit length. fruit diameter and indiv idual fruit weight in nil variety. A~ a result plant wise brinjol production hampered seriously with lull' yield. In comparison with control (100% PAR) rrcannent. 75% PAR condition (S,) decreased fruit weight by 16.8. 13.5 and 19.7~. in V,. V~ and V] respectively. In 50% PAR condition. yield per plant were decreased by 36.·t_ 33.5 and 42.4% in VI_ "1 and V, respectively. Lastly severe stress (S]) decreased fruit weight per plant by 55.0. 61.5 and 67.0% in VI. "1 and V, respectively. From this result it i~clear lhot under severe Stress (S,) V, perform well but V1perform well against $1 and S: treatments.
EFFECTSOFSOWINGDATEANDCUTTINGMANAGEMENTONTHEGRAINANDFODDERYIELDOFBARLEY
(Bangladesh Journal of Agriculture, 2024-07-18) Hasanuzzaman, M.; Rana, M.S.; Islam, F.; Mollick, M.O.A.; .Masum, S.M
Cereal crops need to be grown for dual purpose to overcome continuous food and feed shortage. Sowing date and cutting management both are important to obtain the balanced fodder and grain simultaneously. To address the issue, the field experiment was conducted at agronomy field of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh to find out the effect of optimum sowing date and cutting management on the plant growth, green fodder and grain yield of barley. Five sowing times viz., 30 October, 15 November, 30 November, 15 December and 30 December and four cutting management viz., uncut, cutting at Zadoks growth stage, ZGS 19, cutting at ZGS29 and ZGS31 were used. Results of the present study revealed that early sowing time, 30 October gave significantly higher plant height, dry matter accumulation, effective tiller, fertile spikelet, spike length, 1000-grain weight, grain yield, straw yield, biological yield and green fodder yield under both uncut (control) and cut conditions. Cutting of barley for green fodder had reduced significantly all growth parameters, yield attributes and yield compared to uncut barley. Among cutting schedules, minimum and maximum reduction in growth parameters, yield attributes and yield were recorded with cutting of fodder at ZGS19 (vegetative growth stage) and ZGS31 (stem elongation stage), respectively compared to uncut. However, cutting of barley for fodder purpose at ZGS29 (tillering stage) was found in a balance between green fodder and grain yield simultaneously. Therefore, the study suggested that early sowing (30 October) can compensate the reduction in barley yield due to cutting for fodder purpose and cutting at maximum tillering stage (ZGS29) can balance having optimum grain and green fodder simultaneously.
Moss rhizosphere and its microflora
(Bangladesh J. Bot., 1997-12) Khan, M. R.; Huq, S. M. Imamul; Hasanuzzaman, M.
Prospects and Challenges of Renewable Energy-Based Microgrid System in Bangladesh
(Daffodil International University, 22-04-11) Mojumder, Md. Rayid Hasan; Hasanuzzaman, M.
Global energy demand is continuously increasing where the pollution and harmful greenhouse gases that originated from the burning of fossil fuels are alarming. Various policies, targets, and strategies are being set to the carbon footprint. Renewable energy penetration into the utility grid, as well as bidirectional power flow between generation and end-users, are also potentials. A microgrid energy system can help distribute energy from intermittent renewable generation centres to load centres more effectively. The microgrid system efficiently utilises electricity from renewable sources, such as solar, wind, hydro, geothermal, and biomass. The potential renewable transition opens up a lot of possibilities for microgrids that are both grid-connected and islanded. Digital technology, specialised energy measurement devices, a fast and efficient communication system, energy storage systems, and dynamic control techniques are all used. The renewable-based microgrid system faces numerous techno-economical vulnerabilities due to the volatile and environmental dependencies of renewable energy. The complex power converter stages, lack of strict regulatory rules, grid operations and management, communications between the centralised and decentralised controllers come into play while investigating the microgrid system. This paper focuses on the prospects of renewable-based microgrid system implementation in Bangladesh. The major challenges and solutions to those challenges are described with all the current breakthroughs across the world to solve some core issues regarding microgrid planning, controlling, maintenance, resilience, and economics.