隔离种植。要与普通玉米或其他类型的甜玉米隔离种植 ,距离一般为４００米以上 ,如有树林、山岗、公路等天然屏障 ,隔离距离可适当缩短。采用空间隔离和时间隔离都行 ,以空间隔离为好。如采用时间隔离 ,播种期应相差３０天以上 ,这在北方是难以做到的。总之 ,以不使两类玉米花 Isolated planting. To be isolated from ordinary corn or other types of sweet corn plantings, the distance is generally 400 meters above, such as trees, hills, roads and other natural barriers, isolation distance can be properly shortened. The use of space and time to isolate the line, to space as well. Such as the use of time isolation, sowing period should be more than 30 days, which is difficult to do in the north. In short, to not make two types of popcorn