作　　者： ; ; ; ; (陆远宁）;

机构地区： 清远职业技术学院

出　　处： 《中国农学通报》 2009年第23期287-290,共4页

摘　　要： 通过调查清远市郊蔬菜地养分状况,为叶菜生产提供科学的施肥依据。2008年10—11月采用均匀布点随机抽样的方法,采集了市郊的7个区点的土壤样品,按照国家土壤营养成分测定标准方法,测定了土壤的主要营养成分和pH。按当地菜农施肥量的1/4量分期施肥,盆栽小白菜、生菜和油麦3种叶菜,并称取各自的经济产量。结果显示,土壤整体肥力接近华南地区的水平,属于低肥力菜地,各点土壤的碱解氮、速效磷、速效钾和有机质含量和叶菜产量差异程度很大,氮、磷、钾的比例明显失调。测土配方合理施肥对于清远市蔬菜生产具有重要的意义。 To provide a scientific basis for the fertilization for the production of leafy vegetables, the vegetables soil nutrient situation and the production of leafy vegetables in the suburbs of Qingyuan were investigated. From October to November 2008, seven soil samples of regional centers to the outskirts were collected with point＇s uniform random sampling method, and the main soil nutrients and pH were determined in accordance with the National Soil nutrients Determination of the standard method. At the same time, Chinese cabbage, let- tuce and Z^ctuca satiraL, were potted plant and fertilized at 1/4 the amount of the local vegetable fertilizer. The results showed that the overall fertility of the soil close to the level of southern China, a low-fertility vegetable, the vegetable soil of nitrogen, phosphorus, potassium and organic matter content and leaf production of large dif- ferences in the level of nitrogen, phosphorus and potassium ratio were obviously imbalance. How reasonable fer- tilization for vegetable production in Qingyuan has certain significance.

关 键 词： 土壤 养分 合理施肥 产量 清远

领　　域： [农业科学] [农业科学]