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1 选地与隔离1.1 选地海南的土壤多为沙壤土,有机质含量低,漏肥漏水,所以选择稻田为最好,一是有机质高,二是水源有保证。由于海南对家畜有散养的习惯,所以制种田一定要有篱笆才能保证不被家畜危害。由于制种单位多,一个村庄可能有多个育种单位,所以要事先了解好其他育种单位的育种地点、种植时间等情况。1.2 隔离1.2.1 空间隔离就是在隔离区的四周一定距离内不种其他品种的玉米,以防外来
1 Selection and isolation 1.1 Selected Hainan soil mostly sandy loam, organic matter content is low, leaking leakage, so the choice of paddy field is best, first, high organic matter, and second, water is guaranteed. Due to the habit of free-range livestock in Hainan, farming must be fenced to ensure that it is not harmed by domestic animals. Due to the large number of seed production units, there may be more than one breeding unit in a village. Therefore, it is necessary to know in advance the breeding places and planting time of other breeding units. 1.2 Isolation 1.2.1 Space Isolation is in the quarantine area within a certain distance not breed other varieties of corn, to prevent foreign