This page is providing the production trends of Japanese yam in Nagano-ken for 10 years (2013 - 2022). You can check various data in chart style, such as yield amount, acreage, yield rank/ratio in Japan.
The yield amount of Japanese yam in Nagano-ken is decreasing by 18.1% from 2013 to 2022, and the acreage is decreasing by 17%.
The yield amount of Japanese yam in overall Japan is decreasing by 1.6% from 2013 to 2022, and the production ratio for Nagano-ken is decreasing by 0.82%.
With regards to Japanese yam, the yield percentage for Nagano-ken in overall Japan is decreasing by 0.82% from 2013 to 2022, and the order of yield amount in Japan is the highest: 3 rank, the lowerst: 3 rank, the average: 3 rank.
The yield amount of Japanese yam in Nagano-ken is decreasing by 18.1% from 2013 to 2022, and the Yield per 10 acers is decreasing by 1.2%.
Nagano-ken -
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