一、前言晋北地区气候高塞,是我省主要的春小麦产区,在大跃进的1968年,全国各地在小麦密植方面作了很多研究试验;但对春小麦的合理密植问题,以及个体和群体间的生长发育规律研究资料还比较少,我院植物教研组结合下放劳动锻炼,与植物生理的现场教学, I. Preface The climate in Gyeonggi Province is a major spring wheat producing area. During the Great Leap Forward in 1968, many research experiments were conducted on the planting of dense wheat in all parts of the country. However, the issue of reasonable close planting of spring wheat, as well as individuals and groups Between the law of growth and development of the research data is still relatively small, our hospital plant teaching and research group with the decentralization of labor training, and plant physiology on-site teaching,