Hanoi, May 3 -- As Hanoi urbanises at a fast pace and farmland shrinks, the exploding demand for quality food is forcing farmers to maximise value out of every hectare, turning digital tools and green practices into absolute must-dos.

At one of Hanoi's largest safe vegetable production zones, Nguyen Van Tung, Director of the Dong Anh safe vegetable cooperative, can adjust nutrient levels in irrigation water, control the cooling system, monitor pest outbreaks and check crop health in real time, all from a single smartphone. The tech upgrade has delivered a massive 30% jump in productivity while slashing water and fertiliser use by more than 40% compared to traditional farming.

The packages of vegetables come with a QR code so buyers can ...