Agriculture is the important sector and key contributors to the national GDP of Bangladesh. Around 20.60% of the total GDP of the country comes from the agricultural sector. But, most of the farmers of Bangladesh are still in lack of modern agricultural knowledge. Farmers need to access ICT and take information of agriculture and others which put them in better position in economic activities. So, it is very important to provide the farmers with the modern ICT facilities as soon as possible. This paper also provides a present status of ICT in agriculture for the potential users (policy makers, researchers, teachers and students, and other activists) of agricultural information to work cooperatively. In this paper gives a concept of database that may be applied to provide agricultural information in the effective way in digitally divided geographical areas using Location Based Services. Proposed system will assist the govt. to provide services & accessibility of proper digital contents not only the farmers but also the researchers and other people who are interested in this sector. DOI: http://dx.doi.org/10.3329/jsf.v8i1-2.14639 J. Sci. Foundation, 8(1&2): 161-169, June-December 2010

The sustainability of conventional agriculture in Bangladesh is under threat from the continuous degradation of land and water resources, and from declining yields due to indiscriminate use of agro-chemicals. Government is pursuing efforts to promote sustainable agriculture with emphasis on better use of on-farm resources and the reduction of external inputs. This paper presents four dimensions of agricultural sustainability as productivity, environmental stability, economical profitability, and social and economic equity. Six characters were selected to evaluate sustainability. Significant differences were found between the two systems (conventional and sustainable agriculture) in crop diversification, soil fertility management, pests and diseases management, use of agrochemicals and environmental issues. However, no significant variations were found in other indicators such as land-use pattern, crop yield and stability, risk and uncertainties, and food security. Although crop yield and financial return were found to be slightly higher in the conventional system, the economic return and value addition per unit of land did not show any difference. It can be suggested that sustainable agriculture has a tendency towards becoming environmental, economically and socially more sound than conventional agriculture, as it requires considerably less agro-chemicals, adds more organic matter to the soil, provides balanced food, and requires higher local inputs without markedly compromising output and financial benefits. Broad-policy measures, including the creation of mass awareness of adverse health effects of agrochemical-based products, are outlined for the promotion of sustainable agriculture.

The Government of Bangladesh has identified food security as an important factor contributing to its socio-economic stabilization and development. Bangladesh has made a steady progress in the expansion of food production. But because of the increasing population pressure there has been an extensive use of land to meet the growing demand for food. Despite the growth in food production and its availability, food insecurity is still a major problem mainly because of the lack of purchasing power and thus of access to food, especially for the ultra poor community. This paper focuses on the availability of food as an essential element of the concept of food security and role of government to get food sufficiency. In addition to rice and wheat that constitute the staple food of Bangladesh, the paper deals with the production and availability issues of other major food commodities, such as potato, pulses, oilseeds, vegetables and fruits, and fisheries and livestock products. The food production of the country both rice and wheat, was 10.46 million metric tons in the 1971-72. Bangladesh attained self sufficiency in food production in 2010-2011 with a gross production of rice and wheat of 35.3 million metric tons which marginally met the country's requirement of 23.64 million metric tones for the population of 148.69 million, taking 453.6 g per capita per day requirement. Production of vegetables and fruits has increased, from 1.5 million tons and 1.46 million tons in 2001-02 to 7.19 million tons and 3.56 million tons in 2009-10 respectively. Fish production increase from 2.0 million tons in 2001-02 to 3.0 million tons in 2010-11. Livestock product (meat, milk and egg) has also increase 50% over that last ten years. Of these, domestic production is critical in ensuring food availability at both national and household levels. Government of Bangladesh is trying to integrate and address all the elements associated with food security to achieve touch the MDG setting for the country. However, in recent years, the Government is putting additional efforts to increase production of important food crops as well as fisheries and livestock.

Climate change is no more an environmental concern it has emerged as biggest developmental challenge for the most vulnerable Bangladesh. The whole international community is also scared of catastrophic adverse effects of future climatic changes on different spheres of man and nature, e.g. deglaciation and sea level changes, submergence of lands, nations and major coastal lowlands, atmospheric dynamics including evaporation and precipitation, global radiation balance, photosynthesis and ecological productivity, plant and animal community and many more. This paper tries to focus the adverse impacts of climatic changes on the crop production, food security, yield gap and sustainable agriculture by crop intensification and diversification. The impact of climate on agriculture could result in problems with food security and may threaten the livelihood activities upon which much of the population depends and thrives. Hilly committed research efforts showed technological progress as evidenced by release of 684 high yielding varieties of various crops and about 769 management technologies by NARS institutes, and universities. The greatest challenge for the future agriculture under climate change, we need improved and modified warning system, developed climate impact modules, build sufficient resilience of food system, comprehensive climate resilience strategies, develop database on climate. Also need top priority to mitigate the impact of climate change on agriculture through weather services, more research and extension service, agro advisories, insurance, community bank, intensify and diversify crop production system, modern high yielding varieties and management technologies for future sustainable agriculture.

The experiment was carried out to evaluate the effects of next-generation fertilizers along with other recommended fertilizers on the growth and yield during the period from January 2015 to May 2015 at the experimental field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka, Bangladesh. The experiments were laid out in RCBD method with three replications. The experiment was conducted in boro rice with six treatments including control viz Treatment0=Control (no fertilizer), Treatment1=Recommended dose N140P20K60S18Zn2 kg ha-1, Treatment2=Bio-forge+N140P20K60S18Zn2, Treatment 3=Wuxal Super+N140P20K60S18Zn2, Treatment4=Root feed+N140P20K60S18Zn2, Treatment5=Nitro Plus+N140P20K60S18Zn2 and three rice varieties namely Variety1=BRRI dhan29, Variety2=BRRI dhan28 and Variety3=BRRI dhan58. Next-genaration fertilizer is a mixed fertilizer with the first generation and second generation fertilizer that provide required nutritions to plants. Among the next generation fertilizers, Bio-forge along with other recommended fertilizers performed the best compared to other treatments of the study in an aspect of growth and yield contributing characters mainly plant height, effective tiller hill-1, panicle length, filled grain panicle-1, 1000-grain weight, harvest index and grain yield (8.61 t ha-1). Among the varieties, BRRI dhan29 showed the best performance compared to the other two treatments. The next generation fertilizer viz. Bio-forge and Root feed along with other recommended fertilizers would be ideal for better crop growth and yield.