在甜菜采种田间,常常可以看到有一少部分植株只能不断生长叶片,而迟迟不抽苔。人们把这种植株称为“顽固株”。“顽固株”在大田叶丛期难以识别,待到抽苔末期才可发现。因而移苗补栽时间已晚,往往只得将其拔掉,这就会给田间造成缺苗、空位,影响产量。倘若能够采取一些措施,促使“顽固株”抽出苔来,通过单株管理使其变成有效植株, In sugarbeet mining field, you can often see a small number of plants can only continue to grow leaves, but not bolting. People call this plant a “stubborn strain.” “Stubble” is difficult to identify in the field of the field of leaves, until the end of the bolting can be found. Therefore, seedling replanting time is too late, often have to unplug it, which will result in lack of seedlings in the field, space, affecting output. If we can take some measures to promote the “stubborn strains” out of the moss, through the management of individual plants to make it an effective plant,