聊城市小麦玉米连作田土壤肥力现状分析

为了更好地了解小麦、玉米连作田土壤肥力的状况，以聊城市小麦、玉米连作田土壤样本为试材，测定土壤中的硝态氮、有效磷、速效钾、有机质含量以及pH，并对检测结果进行分析。结果表明：调研区域内土壤硝态氮、有效磷、速效钾、有机质、pH均值分别为37.75 mg/kg、23.34 mg/kg、198.34 mg/kg、10.50 g/kg、8.22。检测数据表明：调研区域内土壤氮磷钾养分较为丰富，有机质缺乏，土壤为碱性。因此，建议聊城市小麦、玉米连作田根据土壤养分状况来改变施肥方式，应该控制化学肥料的投入量、适当增加有机肥的施用量以改善土壤理化性质，促进设施土壤可持续利用。

Analysis of Soil Fertility in Continuous Cropping Field of Wheat and Maize in Liaocheng City

In order to better understand the status of soil fertility in wheat and maize continuous cropping field, the soil samples of wheat and maize continuous cropping field in Liaocheng city were used as test materials to measure the contents of nitrate nitrogen, available phosphorus, available potassium, organic matter and pH in the soil, and the detection results were analyzed. The results showed that the mean values of soil nitrate nitrogen, available phosphorus, available potassium, organic matter and pH were 37.75 mg/kg, 23.34 mg/kg, 198.34 mg/kg, 10.50 g/kg and 8.22, respectively. The test data showed that the soil in the survey area was rich in nitrogen, phosphorus and potassium nutrients, but lacked of organic matter, and the soil was alkaline. Therefore, it is suggested that the fertilization method should be changed according to the soil nutrient status in liaocheng continuous cropping field of wheat and maize, and the input amount of chemical fertilizer should be controlled and the application amount of organic fertilizer should be appropriately increased to improve the soil physical and chemical properties and promote the sustainable utilization of facility soil.