植物营养与肥料学报2010,16(1)：105-111 Plant Nutrition and Fertilizer Science
褐土耕地肥力质量与作物产量的变化及
影响因素分析
田有国，张淑香2*，刘景2，徐明岗2，李昆3
80000
3成都土壤肥料测试中心，成都610041）
摘要：对26个20多年长期定位试验的竭土土壤肥力质量和产量变化进行了分析。结果表明，从1986年到2006 0 73.5mg/kg上升到94.6mg/kg，20年增加了21.1mg/kg；有效磷含量1998~2006年增加幅度较大，由18.1mg/kg上升到28.7mg/kg，年增加1.3mg/kg；速效钾含量也随时间量一定的增加趋势。总之，端土肥力总体稳中有升的趋势。土壤有机质、全氮、碱解氮和有效含量的上升趋势较土壤速效钾明显，土壤酸碱度保持基本稳定，作物产量也呈现了一定上升趋势。
关键词：土壤肥力；据土；作物产量
中图分类号：S158
文献标识码：A
文章编号：1008-505X(2010)01-0105-07
Changeofsoilfertilityindicesandcropyieldofcinnamonsoil
and its affecting factors
TIAN You-guo', ZHANC Shu-xiang'', LIU Jing, XU Ming-gang', LI Kun?(I National Agro-Tech Exiension and Sersice Center, Bejing 100/25, China ;
2 Institute of Agricultwral Resources and Regional Planning, Chinese Academy of Agriculrural Sciences, Bejing 10008I , China
3 Testing Center of Soil and Fertilizer, Chengdu 610041, China)
Abstract : Based on the dala collected from a long-term experiment of Cinnamon Soil for 26 sites, changes of soil fertility index and crop yield of Cinnamon Soil and its affecting factors had been analyzed. The results showed that the content of soil organic matter was increased from the beginning value 11.50 g/kg of 1986 to 15.75g/kg of 2006; the content of total N of soil was increased from the beginning value 0.73 g/kg of 1986 to 1.07 g/kg of 2006. The content of soil of available N was increased from 73.5 mg/kg in 1986 to 94.6 mg/kg in 2006; the content of soil available P was increased from 18.1 mg/kg of 1986 to 28.7 mg/kg of 2006. The content of soil available K was increased with the time. In a word, the indexes of soil fertility of Cinnamon Soil presented a growing trend. The increase of organic matter, total N, available N and P was sharper than available K; soil pH kept stable; meanwhile the yields of wheat and maize also appeared on up ward trends.
Key words: soil fertility; Cinnamon Soil; crop yield
土地质量是土壤提供和支持生物生产能力的肥力质量、容纳和净化污染物能力的环境质量和促进人畜安全能力的健康质量的综合度量。耕地质量变化也是关系粮食生产的重要因素，关于耕地质量的
收稿日期：2008-1129
接受日期：2009-0506
评价、演变趋势以及影响因素分析已有不少研究(1-3],特别是耕地的肥力指标的研究[4-11],但多见于不同施肥定位试验的研究[12-15]，或对于某一区域的土壤养分数据的动态监测[16]。
基金项目：国家基础性工作专项（2007FY220400）和"973"项目（2007CB109302）资助。
作者简介：田有国（1966—），男，潮北人，高级农艺师，主要从事土壤肥力监测工作。E-mail：tianyouguo@agri.gow.cn
通讯作者E-mail：suhang@cas.ae.cn
万方数据