Digitalization of agriculture may be a solution to feed a huge growing population in the future. Application of big data is a key tool to digitalize the agriculture sector. Though there is a long debate on its applicability to agriculture, this study aims to address how big data technology contribute to digital agriculture in terms of sustainable farm management. The study uses an extensive review of current research work and studies in agriculture for exploring the best and compatible practices which can help farmers at field level for increasing production and improving quality. This study reveals several available big data technologies and practices in agriculture for solving the current problems and future challenges at the field level. The study reveals that application of big data technologies in agriculture is growing but still at low level. It also explores that there are a few technologies used for crop production, plant protection, livestock production, fisheries, post-harvest management and market development. The study finds out some challenges such as privacy of data, data availability, quality and openness, financial investment, lack of expertise and context specific technology. The study recommends that a large-scale adoption of agricultural big data technologies require government initiatives, a public-private partnership, the openness of data, financial investment and regional basis research work.

Street vendors go on an essential role to fulfill the demands of many urban rural dwellers as well as pedestrian across the country and all over the world. The aim of this study is to explore the dynamics of small entrepreneurship and its contribution to poverty alleviation and sustainable livelihood. A quantitative oriented qualitative mixed method has been applied in this study. The study reveals that a large number of people are directly and indirectly engaged with the street vendor profession and are contributing to the economy of Bangladesh. Three ideas constitute the central message of this study. Firstly, a large number of people are generating income through street vending by which the ways and means for developing street entrepreneurship. Secondly, this small entrepreneurship has a great contribution to poverty reduction and sustainable livelihood of many street vendors. Thirdly, this study has explored the obstacles faced by street vendors in Bangladesh. Some problems of city dwellers are created by street vending such as lack of formalization, weak management system, producing street garbage and gathering crowd on the footpath. By the implementation of the proper public management system, street vendors would become a role model for the national economy.