周末闲暇之余,我打开柜橱取出封存已久的老照片看了起来。其中一张是1996年拍摄的大白菜药害试验的彩色照片(图1)。这张照片让我回忆起当时研究大白菜病害的相关工作。那时我参加了由北京市农林科学院蔬菜研究中心主持的“大白菜系列工程”研究课题。这个课题囊括了大白菜新品种选育、栽培技术、施肥技术以及病虫害防治等内容,是一个 During the weekend leisure, I opened the cupboard to take a long time ago to see the old photo. One of them was a color photograph of a Chinese cabbage injury test taken in 1996 (Figure 1). This picture reminds me of the related work on the study of Chinese cabbage disease at the time. At that time, I participated in the “Chinese cabbage series project” research topic chaired by the Vegetable Research Center of Beijing Academy of Agriculture and Forestry. This topic covers the breeding of new varieties of cabbage, cultivation techniques, fertilization techniques and pest control and so on, is a