麦田镇压一般分为入冬镇压和早春镇压。入冬镇压可以弥补土壤孔隙,进麦苗根系发育和抑制麦苗地上部分生长过旺,保证麦苗安全越冬。这里应意的是,时间必须掌握在土壤尚未封冻时进行,即小麦三叶期进行。镇压过幼苗娇嫩,体内物质较少,容易伤苗,抑制麦苗分蘖和生长。镇压过晚,土壤结冻,容易对麦苗造成机械损伤,影响幼穗发育。入冬镇压还应掌握:过旺麦碾压后带耙耱,一般麦田碾压后带耱,弱麦田只碾压不带耙耱。 Wheat field repression is generally divided into winter repression and early spring repression. Winterization can make up for the suppression of soil pores, into the wheat seedling root development and inhibition of over-growth of wheat seedlings over the ground to ensure the safe winter wheat seedlings. It should be noted here that the time must be taken when the soil has not been frozen, that is, the three-leaf stage of wheat. Repressed seedlings delicate, less physical substances, easy to hurt seedlings, wheat seedling inhibition of tillering and growth. Cracking too late, soil freezing, easy to cause mechanical damage wheat seedlings, affecting panicle development. Winter suppression should also be mastered: over Wang wheat crushed with rake 耱, general wheat crushed with 耱, weak wheat crushed only without rake 耱.