酸性土是指土壤溶液pH值5.5的土壤,主要分布在我国南方,东北也有少量分布,酸性土地区一般为降雨量较多的地区,南方地区酸性土壤有效磷含量普遍较高,而速效钾含量较低,施肥应该注意:1有机肥配合化肥一块使用,以提高化肥的利用率;2避免施用生理酸性肥料,如硫铵、氯铵,增强土壤酸 Acid soil refers to the soil with pH value of 5.5, mainly distributed in the south of our country and a small amount in northeast China. Generally, the area of ​​acidic soil is the area with more rainfall. The content of available phosphorus in acidic soil is generally high in the south area, Lower, fertilization should be noted: 1 organic fertilizer with a fertilizer to improve the utilization of chemical fertilizers; 2 to avoid the application of physiological acid fertilizers, such as ammonium sulfate, ammonium chloride, soil acid