冬前小麦常因播种过早或田间管理不当而出现旺长。其表现为:植株高、细、软,叶片长、薄、披,分蘖增多,但有效分蘖率低,根系发育不良,抗冻性差,影响麦苗安全越冬。因此,发现小麦旺长后,必须及时采取措施控制。具体方法如下: 1、疏。小麦三叶期和分蘖初期,按计划苗数进行疏苗,去弱留强,去小留大,使麦苗分布均匀,有利于根系伸展。据试验,旺长麦田经疏苗,一般可增产 Pre-winter wheat is often flourishing due to premature sowing or improper field management. Its performance is: plant height, fine, soft, leaf length, thin, Phi, tillering increased, but the effective rate of tillering, root system dysplasia, frost resistance is poor, affecting the safety of wheat seedlings wintering. Therefore, the discovery of wheat flourishing, we must take timely measures to control. Specific methods are as follows: 1, sparse. Wheat clover period and early tillering, seedlings planted according to the number of sparse seedlings, go weak to stay strong, to stay small, the wheat seedlings evenly distributed, is conducive to the root extension. According to the experiment, prosperous wheat field sparse seedlings, generally increase production