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- 저자 : Mian Sayeed Hassan (검색결과 3 건)
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미안사이드하산 ( Mian Sayeed Hassan ),강현중 ( Hyeon Jung Kang ),최민규 ( Min Kyu Choi ),구본일 ( Bon Il Ku ),강신구 ( Shin Gu Kang ),박홍규 ( Hong Kyu Park ),칼레쿠자만초두리 ( M. Khalequzzaman A. Chowdhury ),고재권 ( Jae Kwon Ko ) 한국국제농업개발학회 2011 韓國國際農業開發學會誌 Vol.23 No.3
방글라데시의 주식인 쌀은 기후에 따라 크게 3가지 재배시기 (Aus, Aman, Boro)로 나뉘어 연중재배를 하고 있다. 현재까지 개발된 벼 품종은 염저항성, 침수저항성 품종을 포함하여 현재까지 68품종이 개발되었으며, 비료, 살충제, 관개 기술의 발전과 더불어 수량이 증가하고 있다. 각 작기별로 현대적인 품종들이 차지하는 비율은 boro는 96%, T. aman (transplanted aman)는 65%, T. aus는 50%, 그리고 boro-aus 시기에 재배하는 해수침수지역은 20.6% 등 이다. 방글라데시 인구는 2030년까지 1억8천만 명에 달할 것으로 추정되는바, 식량자급을 위해서 4천만 톤의 쌀이 필요할 것으로 예상된다. 따라서 현재 2.8 t/ha인 쌀수량을 4.0 t/ha까지 올려야 하는데, 이는 기후생태별로 염해, 가뭄, 조수, 침수지역 등 각각의 특수한 환경에 적응하는 품종 개발이 필수적이다. 이러한 품종의 개발과 함께 보급 종자 생산, 비료, 작부체계 등 재배기술과 사회경제적인 문제 그리고 환경 문제를 고려한 기술개발이 요구되고 있다. Rice is the major crop and staple food of the majority people in Bangladesh. It is grown almost whole year in the country, where three rice growing seasons are recognized based on climate. Already 68 rice varieties have been developed in Bangladesh including four hybrids, two saline tolerant and two submergence tolerant varieties. Besides, variety development, more than 50 improved technologies on soil, water, fertilizer and cultural practices have been developed. Adoption of modern varieties (MVs) and component technologies like quality seed, fertilizer, pesticides and irrigation resulted in significant yield increase. MVs coverage in boro season (winter irrigated) are around 96% followed by 65% in T. aman (transplanted aman) and 50% in the direct seeded and transplanted aus and 20.6% in the tidal wet land boro-aus saline area. The lowest MV area (14%) is in the T. aman tidal wet land, weakly saline area. Bangladesh population is expected to reach 189.8 million by 2030 and to feed these peoples, almost 40.0 million tons of rice will be required. To feed the increasing population, average yield of rice will have to increase from 2.8 t/ha to 4.0 t/ha. It would be essential to evolve high yield potential rice varieties for favorable ecosystems and agro-ecological constraints areas like saline, drought, tidal and submergence, high temperature and biotic stresses. In addition to variety development, improved production practices, quality inputs specially the seeds, fertilizers and increasing cropping intensity are needed as well as socio-economic including dietary diversity and environmental issues must also be addressed.
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Shin-Gu Kang,Mian Sayeed Hassan,Bon-Il Ku,Wan-Gyu Sang,Min-Kyu Choi,Young-Doo Kim,Hong-Kyu Park,M. Khalequzzaman A. Chowdhury,Bo-Kyeong Kim,Jeom-Ho Lee 韓國作物學會 2013 Korean journal of crop science Vol.58 No.3
A field study was conducted to understand nitrogen use efficiency of high yielding Japonica rice varieties under three levels of nitrogen fertilizer (90, 150 and 210 kg N ha -1 ) in Iksan, Korea. Two high yielding rice varieties, Boramchan and Deuraechan, and an control variety, Dongjin2, were grown in fine silty paddy. Nitrogen use efficiencies (NUE) were 83.3, 56.3, and 41.2 in 90, 150, and 210 kg N ha -1 fertilizer level, respectively. Total nitrogen uptake varied significantly among nitrogen levels and varieties. Variety Dongjin2 showed the highest nitrogen uptake efficiency (NUpE), while Boramchan and Deuraechan showed higher nitrogen utilization efficiency (NUtE). However, Nitrogen harvest index (NHI) was higher in Boramchan (0.58) than Deuraechan (0.57) and Dongjin2 (0.53). Rough rice yield showed linear relationship with total nitrogen uptake (R 2 =0.72) within the range of nitrogen treatments. Boramchan produced significantly higher rough rice yield (8546 kg ha -1 ) which mainly due to higher number of panicles per m 2 compared to Deuraechan (7714 kg ha -1 ). Deuraechan showed higher number of spikelets per panicle, but showed lower yield due to lower number of panicle per m 2 . Rice varieties showed different nitrogen uptake ability and NUE at different nitrogen level. Plant breeders and agronomist should take advantage of the significant variations and relationships among grain yield, NUpE, and NUE.
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Kang, Shin-Gu,Hassan, Mian Sayeed,Ku, Bon-Il,Sang, Wan-Gyu,Choi, Min-Kyu,Kim, Young-Doo,Park, Hong-Kyu,Chowdhury, M. Khalequzzaman A.,Kim, Bo-Kyeong,Lee, Jeom-Ho The Korean Society of Crop Science 2013 한국작물학회지 Vol.58 No.3
A field study was conducted to understand nitrogen use efficiency of high yielding Japonica rice varieties under three levels of nitrogen fertilizer (90, 150 and 210 kg N $ha^{-1}$) in Iksan, Korea. Two high yielding rice varieties, Boramchan and Deuraechan, and an control variety, Dongjin2, were grown in fine silty paddy. Nitrogen use efficiencies (NUE) were 83.3, 56.3, and 41.2 in 90, 150, and 210 kg N $ha^{-1}$ fertilizer level, respectively. Total nitrogen uptake varied significantly among nitrogen levels and varieties. Variety Dongjin2 showed the highest nitrogen uptake efficiency (NUpE), while Boramchan and Deuraechan showed higher nitrogen utilization efficiency (NUtE). However, Nitrogen harvest index (NHI) was higher in Boramchan (0.58) than Deuraechan (0.57) and Dongjin2 (0.53). Rough rice yield showed linear relationship with total nitrogen uptake ($R^2$=0.72) within the range of nitrogen treatments. Boramchan produced significantly higher rough rice yield (8546 kg $ha^{-1}$) which mainly due to higher number of panicles per $m^2$ compared to Deuraechan (7714 kg $ha^{-1}$). Deuraechan showed higher number of spikelets per panicle, but showed lower yield due to lower number of panicle per $m^2$. Rice varieties showed different nitrogen uptake ability and NUE at different nitrogen level. Plant breeders and agronomist should take advantage of the significant variations and relationships among grain yield, NUpE, and NUE.
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