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微量元素是植物生命活动中不可缺少的营养成份。在农业生产实践中,微量元素的应用技术越来越多地被人们所重视。近年来,农业科技工作者,根据各种作物的生长发育特性,配制成由多种微量元素组成的专一性的叶面营养液,如苹果素、茶叶素、西瓜素等,经应用取得了很好的效果,有的已大面积推广。本试验为了进一步证明烟草素专用叶面营养液的作用,对其主要成分之一的锌元素进行示踪研究。通过~(65)Zn在烟草植株中的吸收,运转、分配动态,以说明烟草素的喷施效果,为大面积应用推广烟草素技术提供科学依据。材料与方法供试材料中国G80烟草品种,在盆栽条件下正常生长至10～12张叶片时,取生长一致的烟草
Trace elements are essential nutrients in plant life activities. In the practice of agricultural production, more and more attention has been paid to the application of trace elements. In recent years, agricultural science and technology workers, according to the growth and development characteristics of a variety of crops, prepared by a variety of trace elements composed of specific leaf nutrient solution, such as apple, tea, watermelon, etc., obtained by the application Good effect, some have been large-scale promotion. In order to further prove the function of nicotine-specific foliar nutrient solution, we traced the trace elements of zinc, one of the main components of this experiment. Through the absorption, transport and distribution of ~ (65) Zn in tobacco plants, the results showed that the spraying effect of tobacco leaves could provide a scientific basis for large-scale application of tobacco-promoting technology. MATERIALS AND METHODS Materials The Chinese G80 tobacco variety, grown normally to 10-12 leaves under potting conditions, was grown on the same tobacco