小麦镇压是冬、春麦田管理的一项好措施。生产实践证明,镇压能控叶促根,增加分蘖,有利保墒抗旱,保温防冻,确保麦苗安全越冬。但立镇压时还应注意以下四点: 一、掌握压麦的最佳期。压麦的最佳时期为主茎3—6叶龄。因为慎压后长出的第1片叶受控。到第3叶才能恢复,所以在主茎3叶龄以前、7叶龄以后不宜压麦。二、压麦要适度。一类苗要控上促下,宜先压;二类苗要促根增蘖,宜轻压;三类苗弱小,应缓一步压或不压。实拖压麦时还应依叶龄而有所区别,3叶轻压,4叶细压、5叶重压;重压的以上部叶片损伤度不超过15一20％为宜。旺苗压2—3次,二类苗压1—2次,间隔7—10天。三、“压麦前要先施肥。要普施腊肥,以增强麦 Wheat suppression is winter, spring wheat field management of a good measure. Production practice has proved that the suppression can control leaves and promote root, increase tillering, favorable drought and drought, insulation antifreeze, ensure safe winter wheat seedlings. However, when the suppression should also pay attention to the following four points: First, grasp the best wheat pressure. The best time to pressure the main stem 3-6 leaf age. Because after the cautious out of the first leaf controlled. To the first three leaves to restore, so before the main stem 3 leaf age, 7 leaf age should not be pressed wheat. Second, pressure wheat should be moderate. A class of seedlings should be controlled on the promotion, should be the first pressure; two seedlings to promote root tillering, should be light pressure; three seedlings weak, should be a step or not pressure. When the real dragging wheat should also be different according to leaf age, 3 leaves light pressure, 4 leaf fine pressure, 5 leaf weight; weight of more than the Ministry of leaf damage does not exceed 15 to 20% is appropriate. Wang Miao pressure 2-3 times, two types of Miao pressure 1-2 times, an interval of 7-10 days. Third, "before fertilizing wheat fertilizers. To general fertilizers, in order to enhance the wheat