提高农作物播种材料的质量是获得丰产的基础。利用各种物理因素处理农作物种子、块茎、块根以及苗木等播种材料,多年来一直是农业物理工作者研究的课题。苏联在这方面投入了很大力量,开始研究较多的是低剂量γ射线及电场对农作物的刺激效应。80年代以来,另一种重要的物理因素——磁 Improving the quality of crop sowing material is the basis for achieving high yield. The use of various physical factors in the processing of seeding materials such as crop seeds, tubers, roots and seedlings has been the subject of agricultural physicists’ research for many years. The Soviet Union devoted a great deal of effort in this field and started to study more about the stimulating effects of crops with low-dose γ-rays and electric fields. Since the 1980s, another important physical factor - magnetism