The forecasted production of sweet potatoes in Japan is expected to decline steadily from 2024 to 2028, starting at 760.97 thousand metric tons and decreasing annually at a consistent rate, reaching 734.14 thousand metric tons by 2028. This represents a year-on-year decrease of around 1% to 1.5%, with a five-year compound annual growth rate (CAGR) indicating a slight contraction.

In 2023, sweet potatoes' production stood at approximately [missing data for 2023]. The persistent decline can be attributed to factors such as decreasing cultivated land, changing agricultural priorities, and market dynamics.

Future trends to watch for include:

Potential shifts in consumer preferences towards alternative crops or healthier eating habits.
Technological advancements or governmental interventions aimed at boosting agricultural yield.
Climate change impacts, which could affect crop productivity and sustainability.