抗旱丰产沟又叫蓄水聚肥改土耕作法,是干旱山区建设高产稳产农田的极好措施。方法是:从坡地下边开始沿等高线挖水平沟,以0.8米为一个单元,挖沟筑垄,沟垄各为0.4米。挖沟时,先将垄和沟的上层表土挖出,放在地的下边,再把垄下层土深松1锹深,然后用沟的上层生土作垄。垄高16厘米、宽0.4米,起拦水 Drought and drought ditches, also known as water and fertilizer to change soil farming practices, is an excellent measure to build high and stable farmland in arid mountainous areas. The method is as follows: dig the horizontal ditch along the contour line from the lower edge of the slope, take a piece of 0.8m as a unit, and dig the ditch to build the ridge with the width of 0.4m. Trenching, the first ridge and ditch upper surface of the topsoil excavated, on the ground below, and then the depth of soil deep furrow 1 deep shovel, and then ditch furrows for the upper ridge. Ridge height 16 cm, width 0.4 meters, water from the water