拍麦是一项有效的增产措施。近几年来,在郊区推广应用,取得了显著效果。现就我们的实践与认识,谈谈拍麦的作用。大家知道,冬季气温下降,出现冰霜,表土就会形成很多孔隙和裂缝,使水分蒸发快,土壤干硬,养分分解慢,三麦根系不易吸收,生长“黄小瘦弱”。为了改变这种状况,就必须拍麦。这是因为:第一,拍麦敲碎土块,可以减少土壤孔隙,有利毛细管水不断 Picking wheat is an effective stimulation measures. In recent years, popularization and application in the suburbs have achieved remarkable results. Now on our practice and understanding, talk about the role of wheat. As we all know, the winter temperature dropped, there frost, topsoil will form a lot of pores and cracks, so that water evaporates quickly, soil dry and hard, slow decomposition of nutrients, three wheat root system is not easy to absorb, grow “yellow thin.” In order to change this situation, it is necessary to make wheat. This is because: First, patting wheat clods, can reduce the soil pores, beneficial capillary water constantly