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水和土壤中的高氟能否被植物根系吸收,使粮菜含氟量增高,目前尚无统一认识。因此,我们对农田浇灌不同含氟量水生长的玉米和白菜进行了调查。 一、材料和方法 调查点南北城子为一个自然村,海拔1000米左右,气候干旱,年降雨量474.5mm,蒸发量1872.7mm,周围无氟源污染。采样前先测灌溉水含氟量,划定采样范围。在粮、菜丰收季节同时采田间灌溉水、土壤(地表15cm混合样),玉米和白菜进行检测。粮菜,土壤用
Whether water and soil high fluoride can be absorbed by the plant roots, so that food fluoride content increased, there is no uniform understanding. Therefore, we investigated the irrigation of corn and cabbage with different fluoride content in farmland. I. Materials and Methods The investigation site is a natural village of Nanbei Chengzi, about 1,000 meters above sea level with arid climate. The annual rainfall is 474.5mm and the evaporation is 1872.7mm. There is no fluorine source pollution around. Before sampling, measure the amount of fluorine in irrigation water and define the sampling range. In the grain, vegetable harvest season at the same time harvesting field irrigation water, soil (15cm mixed surface), corn and cabbage for testing. Food, soil use