一、前言 辽宁省大部分地区辣椒于五月中旬定植,此时经常出现低温,辣椒定植后生长缓慢,不易长新根、新叶,植株矮小,不发棵。进入夏季高温时不能封垅,当六、七月份太阳暴晒,土温过高,根系易受害。高温加上暴雨冲洗,使植株生长不良;在夏季高温干旱的条件下,病毒发生发展快。不少 First, the forefront of pepper in most parts of Liaoning Province in mid-May planting, often low-temperature at this time, pepper growing slowly after planting, not easy to new roots, new leaves, plants dwarf, not send trees. Into the hot summer can not be sealed, when the sun exposure in June and July, the soil temperature is too high, the root system vulnerable. High temperature coupled with rain washing, poor plant growth; in the summer conditions of high temperature and drought, the rapid development of the virus. A lot