The JA Shizuoka City Challenge Ren Subcommittee 1 has successfully harvested 19 kg of lotus roots from its experimental containers in Shizuoka City Hata, using a method that shows promise for labor cost savings and suitable for idle land regeneration. The method involves growing lotus roots in large plastic containers, which has resulted in a yield of 30-40 minutes per container, half the time it would take to harvest by hand. The division is optimistic about future yields and plans to continue testing different varieties.