古田县园地土壤养分状况探析  

Investigation of Nutrient Status of the Orchard Soils in Gutian County, Fujian Province

作　　者：林万树 

机构地区：[1]福建省古田县土壤肥料技术站,福建古田352200

出　　处：《中国农学通报》2014年第33期197-205,共9页Chinese Agricultural Science Bulletin

基　　金：2006年国家测土配方施肥补贴项目[农业部.财政部办公厅(农办财2006)11号]

摘　　要：为了调查古田县园地作物土壤养分状况,探讨土壤养分供应与土壤主要性质之间的关系。在古田县5种园地作物土壤上,采集耕层土壤样品7023个,调查园地作物状况,探讨土壤养分供应与土壤主要性质之间的关系。结果表明,供试园地土壤均值有机质含量为25.38 g/kg、p H 5.07、全氮含量1.22 g/kg、碱解氮、有效磷、速效钾含量分别为143.5、29.95、59.3 mg/kg,交换性钙、镁含量分别是226.1、422.1 mg/kg,有效硼、锌含量分别为0.15、1.22 mg/kg,各养分含量均与土壤有机质含量和p H之间呈极显著正相关。供试园地土壤全氮含量中等,碱解氮、有效磷含量较高,土壤速效钾78.51%处缺乏水平,交换性钙含量缺乏比例占89.21%,交换性镁过量、有效硼缺乏样品达96.21%,有效锌处于中等水平。提高有机质含量和改良土壤酸度应该成为供试园地土壤改善养分供应状况的根本措施。The status of some nutrients of 7023 surface soils（0- 40 cm） of the orchards in Gutian County,Fujian Province was investigated. The relationship between the nutrients and the main soil properties wasdiscussed. The mean p H of the tested soils was 5.07 and the mean organic matter content was 25.38 g/kg. Thecontents of total N, alkali-hydrolysable N, available P, exchangeable K, Ca and Mg, and available Zn and Bwere 1.22 g/kg, 143.5 mg/kg, 29.95 mg/kg, 59.3 mg/kg, 226.1 mg/kg, 422.1 mg/kg, 0.15 mg/kg and 1.22 mg/kg,respectively. The contents of the above soil nutrients all increased with the increase of soil organic mattercontent and soil p H. It is concluded that the orchard soils were excessive in exchangeable Mg and available P,appropriate in total N and available Zn, very poor in available K and exchangeable Ca, and poor in available B.Increasing soil organic matter content and improving soil acidity should be the fundamental measurements toincrease the nutrients supplying capacity for the soils.

关 键 词：园地土壤 养分 供应 

分 类 号：S153.6[农业科学—土壤学]