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北方丘陵漫岗区土地存在的主要问题是水土流失和干旱,它是影响和限制农作物产量的主要因素。因此,保土保水蓄水耕作技术显得尤为重要。 一、保土蓄水耕作技术 (一)等高耕作。也叫横坡耕作,即沿等高线耕作,形成一道道等高犁沟,以拦蓄水分,减少地表径流和土壤冲刷。这种方法适宜于>2度的坡地上。 (二)沟垄耕作。既沿等高线进行犁耕并行成相同的沟和垄,沟内或垄上种植作物。沟垄耕作能使原来倾斜的坡面变成等高的沟和垄,改变小地形,分散和拦蓄地表径流,减少冲刷和拦截泥
The main problems with the land in the hills in the northern hills are soil erosion and drought, which are the main factors affecting and limiting the crop yield. Therefore, Pratumn hydroponic farming technology is particularly important. First, the preservation of water plowing technology (A) contour farming. Also known as cross-slope farming, that is, along the contour cultivation, forming a road contour furrows to intercept moisture, reduce surface runoff and soil erosion. This method is suitable for> 2 degrees on the slope. (B) ridge and ridge farming. Both plow along the contour line and parallel into the same ditch and ridge, trench or ridge planting crops. Ridge and ridge tilling can make the original slope of the slope into a contour ditch and ridge, change the small topography, dispersion and interception of surface runoff and reduce erosion and blocking mud