论文部分内容阅读
在保护地内种植切花菊,生长周期长,对土壤肥力消耗很大,花后残留在土壤中的病虫害隐患,极易造成第二年大发生,因此一般都主张换茬、轮作或休闲养地。但是如果没有条件轮作,该怎么办呢? 1993年～1995年,我在某花场指导种植切花菊时,就遇到了没有土地可供换茬种植、只能连作的问题。经过努力,我们采用补充肥力和土壤消毒的办法,成功地进行了连作。连作3年后,不仅菊花生产标准没有下降,病害也没有大发生,还减轻了花场的经济负担,受到欢迎。现将做法
Planting cut flowers and chrysanthemums in the protected areas has a long period of growth and consumes a great deal of soil fertility. Pests and diseases hidden in the soil after flowering can easily cause the second year of occurrence. Therefore, they generally advocate crop rotation, rotation or leisure. However, what should I do if there are no conditions for rotation? From 1993 to 1995, when I was planting cut chrysanthemums in a flower field, I encountered the problem that no land could be planted for conversion and could only be kept in succession. Through our efforts, we successfully carried out continuous cropping by using supplemental fertilizers and soil disinfection. Even after three years in a row, not only did the chrysanthemum production standards not drop, the disease did not happen, but the economic burden on the flower market was also reduced and it was welcomed. Now the practice