１隔离种植要与普通玉米或其他类型的甜玉米隔离种植 ,以免串粉。可采用空间隔离和时间隔离 ,但以空间隔离为好。如采用空间隔离 ,一般平原地区为４００米以上 ,如有树林、山岗、房屋、公路等天然屏障 ,隔离距离可适当缩短。如采用时间隔离 ,播种期应相差３０天以上。总之 ,以? 1 isolation planting to be separated from ordinary corn or other types of sweet corn planting, to avoid stringing. Space and time isolation may be used, but space isolation is good. Such as the use of space isolation, the general plain area of ​​400 meters above, such as trees, hills, houses, roads and other natural barriers, isolation distance can be properly shortened. If using time isolation, sowing period should be more than 30 days. In short, with?