一、按期定植 就是确定合适的定植日期,适时进行定植。确定定植期,应在保证蔬菜正常生长的前提下,按照上市时期和定植到收获需要的天数,推算出定植时间。这样计算出的是标准定植期,在实际生产中应根据栽培条件,提早或延后几天定植。如中甘11号甘蓝定植后60天即可收获上市,欲在5月下旬上市,就应在3月下旬定 First, the scheduled planting is to determine the appropriate planting date, timely colonization. Determine the planting period, should be to ensure the normal growth of vegetables under the premise, according to the time of listing and planting to harvest the required number of days, calculate the planting time. This calculated is the standard planting period, in actual production should be based on cultivation conditions, early or delayed a few days planting. Such as the Gan cabbage 11 days after planting 60 days to harvest market, to be listed in late May, it should be set in late March