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晋北高寒春麦区,麦收后还有60天左右的时间才能进入初霜期。近年来,大同、朔州等地采取多种措施,利用春麦收后的剩余时间播种后茬作物获得成功,尽最大可能利用剩余时间的光热资源,相对延长了无霜期。若以春麦的提前连同后茬作物的延后期计算,相对延长作物生育期将近200天。春麦后茬利用的主要措施有以下几项。 一、复种或移栽蔬菜
Northern alpine spring wheat area, wheat harvest after about 60 days to enter the first frost period. In recent years, Datong, Shuozhou and other places to take various measures to take advantage of the rest of the spring after the success of sowing crop success, the best possible use of the remaining time of light and heat resources, the relative extension of the frost-free period. If the late spring wheat crop along with the late calculation, the relative extension of crop growth period of nearly 200 days. Spring wheat stubble utilization of the following main measures. First, seeded or transplanted vegetables