我县地处黄土高原的吕梁山区,耕地多分布在丘陵或沟壑地带,土质瘠薄,缺水少肥,水土流失严重。自1976年以来,实行了沟种法。这种方法是一项具有较大改革的农机农艺相结合的山区玉米耕作法,能抗旱防涝,变“三跑田”为“三保田”,收到显著的增产效果和经济效益。沟种法的产生当地历来玉米的耕作法为平翻、平作制,其工艺是:耕地—耙耱—刨窝或牛犁沟—(手)点种—稍施肥—耱地。这种方法因施肥量少且覆盖浅,致使肥分散失。并且因施肥量少,作物前期消耗殆尽,造成后 Our county is located in the Luliang Mountain area of ​​the Loess Plateau. Cultivated land is mostly distributed in the hilly or gully areas with infertile soil, lack of water and less fertilizer and serious soil erosion. Since 1976, a furrowing law has been introduced. This method is a large-scale reform of agricultural agronomic combination of mountain corn farming method, able to drought drought and waterlogging, change “three fields” as “three Paul Tin”, received a significant increase in production and economic benefits. Production of furrow method The cultivation method of corn in the past has been flat-rolled and flat-cropped. Its technology is: Cultivated land - rake - planing or cattle furrow - (hand) This method due to less fertilizer and covering shallow, resulting in loss of fertilizer. And because of less fertilizer, the crop was depleted, resulting after