气温变化对青岛市冬小麦、夏玉米一年两熟最佳播期的影响

Effect of Temperature Changes on the Optimum Planting Date and Harvest Date of Winter Wheat and Summer Maize in Qingdao

通过统计分析青岛地区常年(1971—2000)及2001—2010年10年间温度变化规律,以及与冬小麦、夏玉米生长发育相关农业气象指标比较分析,提出了在目前气温条件下,青岛地区小麦、玉米一年两熟两茬作物的适宜播期和收获期:其中夏玉米种植应以中晚熟品种类型为主,适宜播种期在6月25日以前,晚熟品种适宜播种期在6月20日以前,夏玉米中晚熟品种收获期可由9月下旬延迟至10月初,晚熟品种可延迟至10月5日左右;冬小麦适宜播种期应推迟至10月2日至10月15日,最佳播种期为10月5日至10月12日。

Based on the analysis of the temperature changes in past 30 years（from1971 to 2000） and the years between 2001 and 2010,as well as the requirements of growth and development on temperature of winter wheat and summer maize,the optimum planting and harvest date for the winter wheat and summer in Qingdao area were recommended as follows： for summer maize,mid-late maturing maize varieties were suggested,and should be planted before June 20th,while the late maturing varieties should be planted before June 25th.The harvest date of mid-maturing maize varieties should be delayed from late September to early October,and October 5th was suggested for late maturing varieties.The planting date for winter wheat should be between October 2th and October 15th,and the optimum planting date would be between October 5th and October 12th.