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几年以前 ,俄罗斯园艺学家在几处废矿井底下 ,进行蔬菜栽培试验获得了成功。已经推广到全国各地矿区。在离地面 30 0～ 5 0 0米深的矿井下面种植黄瓜、西红柿及大白菜等蔬菜 ,经过测定表明 ,蔬菜的糖和维生素 C含量增高 ,尤其是维生素 C的含量竟提高 2～ 3倍。专家们认为 ,对于
A few years ago, Russian horticulturists succeeded in planting vegetables under several waste mines. Has been extended to all parts of the country mining area. Vegetables such as cucumber, tomato and Chinese cabbage are planted below the mine floor at a depth of 300 to 500 meters. The results show that the content of sugar and vitamin C in vegetables is increased, especially the content of vitamin C is increased by 2 to 3 times. Experts believe that for