作　　者： (张建汉）; (袁伟）; (易峰）; (张枫）;

机构地区： 光明米业（集团）有限公司,上海200233

出　　处： 《上海农业学报》 2017年第4期63-66,共4页

摘　　要： 为探明光明米业下属长江农场的土壤养分状况,为合理施肥提供依据,对长江农场农田土壤的5种养分含量与pH进行了调查分析。结果表明:(1)有机质、全氮、碱解氮、有效磷、速效钾平均含量分别为27.4 g/kg、1.61 g/kg、118.4 mg/kg、30.3 mg/kg、156.5 mg/kg,pH为7.74;其中有效磷和速效钾含量为极丰富,有机质、全氮含量丰富,碱解氮含量一般,土壤偏碱性;(2)整体上农场耕作土壤养分状况良好。建议减少磷钾肥的施用,有机肥配合氮肥适当增施。 In order to find out the soil nutrient conditions of the Changjiang Farm on Chongming Island and provide a rational fertilization basis, 5 soil nutrient contents and soil pH of the farmland were investigated. The results were as follows： （ 1 ） The average contents of soil organic matter, total nitrogen, alkali-hydrolyzable nitrogen, available phosphorous and readily available potassium were respectively 27. 4 g/kg, 1. 61 g/kg, 118.4 mg/kg,30.3 mg/kg and 156.5 mg/kg,and the soil pH was 7.74; The available phosphorous and readily available potassium of soil were very rich, the soil organic matter and total nitrogen were rich, the alkali- hydrolyzable nitrogen content was general, and the soil was somewhat alkaline ; （2） In general the soil nutrient conditions of the farmland were good. It was suggested that the application of phosphorous and potassium fertilizers be reduced and the application of organic fertilizer combined with nitrogen fertilizer be increased appropriately.

关 键 词： 土壤肥力 土壤养分 土壤评价 施肥