In  2008, FAO introduced Viet Nam to the concept of minimum tillage potato growing using integrated pest management (IPM) in lowland rice production systems. Rice fields are not ploughed, or tilled, after harvesting. Instead, the paddies are drained using drainage furrows that resultin raised beds. Straw left over from the previous rice harvest is used to cover the seed potatoes. Minimum tillage potato IPM thus helps conserve resources and grow more food that can improve diets and increase farm incomes for families in many provinces across Viet Nam.