一.引言近年来微量元素对植物影响的研究有着很大的发展,目前苏联正在进行大面积的生产试验,部分地区已开始应用到农业实践上,许多作物如小麦、玉米、亚麻、棉花等在应用了微量元素肥料後均连到了增加产量,及改良品质的结果。在应用微量元素的许多方式中,如直接施入土壤,根外追肥,及播种前浸种等,以播种前浸种这种方式具有很重要的意义,在“微量元素在植物生活及农业中的意义”一 I. INTRODUCTION The research on the influence of trace elements on plants has been greatly developed in recent years. At present, the Soviet Union is carrying out large-scale production tests and some areas have started to apply to agriculture. Many crops such as wheat, corn, flax and cotton are in The application of trace element fertilizers are linked to increase the yield, and improve the quality of the results. In many ways of using trace elements, such as direct application of soil, top dressing, and soaking before sowing, sowing seeds before sowing this way is of great significance, in the “trace elements in plant life and agricultural significance ”one