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宕昌县沙湾镇地处白龙江河谷地带,海拔1150米～1200米,年均温13.5℃,无霜期220天,≥5℃有效积温4710.5℃,为提高复种指数,增加农民收入,九三年以来在县、乡及业务部门帮扶下发展以洋葱为主的蔬菜种植业。通过科技人员和广大菜农大胆尝试,突破了传统种植模式,成功地摸索出了
Shawan Town, Dangchang County is located in the Bailongjiang River Valley with an elevation of 1150 meters to 1200 meters, annual average temperature of 13.5 ℃, frost-free period of 220 days and effective accumulated temperature of ≥5 ℃ of 4710.5 ℃. In order to increase the multiple cropping index and increase peasants’ income, since 1993 With the help of counties, townships and business units, the development of onion-based vegetable farming industry. Through scientific and technological personnel and the majority of vegetable farmers a bold attempt, breaking the traditional planting pattern, successfully explored