我省今年人春阶段性低温明显，较常年同期相比积温明显不足。玉米、水稻播种期较常年都延后５～７天，全省作物普遍出苗晚、苗小。为了保证农作物安全成熟，对其进行后期的促早熟措施是十分必要的。１．喷施植物生长调节剂　植物生长调节剂具有明显的抗早衰，促早熟作用，喷施 During the spring of this year, people in our province have obviously low temperature, which is obviously less than that of the same period of last year. Corn, rice sowing period than the average delay of 5 to 7 days, the province’s crops generally emerge late, seedlings small. In order to ensure the crop safety and maturity, the late premature precocious measures it is necessary. 1. Spraying plant growth regulators Plant growth regulators have significant anti-premature aging, early-maturing effect, spraying