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在日本,北起北海道的扎幌,南至北九洲长琦以北,全国43个都道府县都有栗树栽培。总面积为40,000公顷,年产量为75,000吨。日本栗栽培按自然特点大体可分为关东平原产区,关西山地产区,北海道寒地栽培区。关东及北海道的栗树为集约化栽培,先在苗圃内育苗,然后按规划的距离定植。关西山地产区,利用山地的野生栗树(芝栗)就地嫁接成园。日本栗产量较高,一般亩产200—300斤,高产园亩产600—700斤,进入结果期较早,定植后2—
In Japan, Sapporo in Hokkaido from the north is located to the north of Nagata in Kitakyushu. Chestnut cultivation is carried out in 43 prefectures and prefectures throughout the country. The total area is 40,000 hectares and the annual output is 75,000 tons. Japanese chestnut cultivation according to the natural characteristics can be divided into the Kanto region, Kansai area, Hokkaido cultivation area. Kanto and Hokkaido chestnut trees for intensive cultivation, nursery nursery, and then planted distance colonization. Kansai Mountain real estate area, the use of mountain wild chestnut (Zhizhi) grafting into place in situ. Japanese chestnut output is higher, the general yield of 200-300 pounds per mu, high-yield park 600-700 pounds per mu, into the early fruiting period after planting 2-