免耕生产法,就是播种前不用传统的耕犁、耙平土壤的措施,而只用一种特制的犁刀或锄将土壤表层划开一条狭长的播种沟,将肥料、农药、除草剂在播种时随种子一次施入。这种耕作制度一般适合于以草场为前作,土壤比较疏松,排水良好,前茬作物有较多的残留物覆盖地面,有机质含量高的地区,尤其是丘陵山区的斜坡草地。据称,这种耕作法能减少土壤水分蒸发和水土流失,也减少农药、肥料随水冲刷到河流湖泊,从而减轻公害。在上述条件适宜的地区, The no-tillage production method is a measure of removing soil from traditional plows and raking the soil prior to sowing. Only a special coulter or hoe can be used to cut the surface of the soil into a narrow sowing ditch to separate fertilizers, pesticides and herbicides Sowed with the seeds once applied. This tillage system is generally suitable for pasture as a precedent, the soil is loose, well drained, the former crop has more residues covering the ground, organic matter content is high, especially in hilly mountain slope grassland. Allegedly, this tillage method can reduce soil moisture evaporation and soil erosion, but also reduce pesticides, fertilizers washed with water to rivers and lakes, thereby reducing pollution. In the above conditions are suitable,