The Kujukuri Plain, which has a warm climate in Chiba Prefecture, is a major production area with many long onion fields that spread all over. Summers are cool and winters are warm. Therefore, it grows well even in the summer, and it is famous as a production area where it is possible to secure green leaves while keeping the sweetness due to the moderate cold in the winter.
In the certified farmer system, Japan does not select a leader based on uniform criteria such as management scale, but asks farmers who are trying to improve management to raise their hands, and the town respects its motivation and ability. It is a mechanism to certify. People who are trying to do their best in agriculture plan the agricultural management they are aiming for (indicated by numbers) and make the future image clear. Kujukuri Town certifies such people as “agricultural specialists”, and each related organization provides support and aims to develop agricultural management. The origin of the green onion is unknown, but it is believed to be in western China. Cultivation began before 2000, and it is said that the Han Chinese have been cultivating since the early days in China. 易水に根深（葱）流るる寒さかな, 葱買て枯木の中を帰りけり – 俳号, 与謝蕪村（1716-1784）