When the roof or terrace of a building is covered with plants such as trees, shrubs, bushes, and grass, it is termed as a roof garden. This farming practice is also known as, terrace farm, rooftop farm, rooftop garden, green roof, living roof, or eco-roof. The concept of Smart urban agriculture focuses on adequate production of crops, vegetables and fruits utilising advanced farming techniques along with IoT and AI. As Dhaka has scarcity of arable land, the methods of smart agriculture can be applied here through terrace farming. Let's take a look into the prospects of smart rooftop farming in Dhaka city. Threats to the Food System of Dhaka City Decreasing Arable Land To cope up with the increasing pressure of population, the agricultural lands are being converted to residential, commercial or industrial land uses. Such practices are reducing the scope of growing agricultural food products in different urban areas of Bangladesh including the Dhaka metropolitan city. Rising Food Inflation One of the major impacts of the Russia-Ukraine crisis was the disruption of global trades of some key foods and agricultural commodities. Like many other countries, Bangladesh has been experiencing rising prices of foods and agricultural products which is threatening the country's food security. According to BBS data, the food inflation rate in Bangladesh climbed to 12.54% in August 2023. The demands and prices of food commodities are also rocketing in Dhaka city. Read more: Inflation ticks up again as food prices remain sticky upwards Harmful Chemicals The usage of inorganic fertilisers and harmful pesticides to increase agricultural productions are making the yields hazardous for human health. Furthermore, food contamination practices such as application of harmful chemicals to ripen fruits or keep vegetables fresh for long hours are posing threat to the health of Dhaka city residents.

Jahangir Haider of Cumilla city hardly fits the quintessential image of a farmer. But this retired government official has now become the talk of the town with his rooftop farming, which has limited his outing to the market amid Covid.