通过机插秧品种筛选、适宜秧龄和氮肥施用方式等试验，获得了云南温凉稻区水稻机插秧安全齐穗的具体措施：选用生育期不超过180 d的中早熟耐寒品种，秧龄控制在30～35 d，纯氮用量不超过20 kg/667 m2，并适当减少氮肥后移比例。

Discussion on the measures for full heading of mechanized transplanting rice in cool region, through the test of machine planting variety screening, suitable seedling ages and nitrogen fertilization dosage and application. These measures mainly including choice of the varieties with the growth period not more than 180 d and fine chilling tolerance, seedling ages in 30~35 d, nitrogen fertilization amount does not exceed 20 kg/667 m2, and reduce the ratio of postponing N application.