今年我县各地早稻单产偏低或歉收。品种与管理措施较去年变化不大,也未受旱、涝和病虫为害,但单产为什么不高?对此,笔者根据1987～1988年两年早稻品种试验资料,着重结合气候因素,分析其对早稻生长发育、经济性状与产量的影响,旨在为今后出现类似气候时,提供避免或减轻早稻单产大幅度摆动的对策,以求得稳产或增产。 This year, low yield or poor harvest of early rice in our county. Varieties and management measures have not changed much from last year, nor have they been affected by drought, waterlogging and pests, but the yield is not high. In this regard, based on the experimental data of two varieties of early rice from 1987 to 1988, combining with climatic factors, The impact on the growth and development, economic traits and yield of early rice is to provide measures to avoid or reduce the substantial swing of early rice yields in the future when similar climate occurs, in order to achieve stable production or increase production.