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三峡重庆库区柑橘园土壤养分丰缺状况研究
引用本文:周鑫斌,石孝均,孙彭寿,李伟,戴亨林,彭良志,淳长品.三峡重庆库区柑橘园土壤养分丰缺状况研究[J].植物营养与肥料学报,2010,16(4):817-823.
作者姓名:周鑫斌  石孝均  孙彭寿  李伟  戴亨林  彭良志  淳长品
作者单位:1.西南大学资源环境学院,重庆 400716;
基金项目:公益性行业科研专项,国家科技支撑计划 
摘    要:采集了三峡重庆库区柑橘主产区459个果园0—30 cm的土壤样品进行取样分析。结果表明,库区有78.7%柑橘园土壤pH值适合柑橘生长;有60.3%的柑橘园土壤有机质含量偏低。土壤速效氮和磷缺乏,分别占到72.4%和41.7%,土壤速效钾缺乏和过量并存。库区柑橘园缺乏有效B、Zn、Fe、Mn的比例分别为86.3%、37.9%、27.0%、20.3%;土壤有效Fe、Mn和Cu含量在部分果园存在过量现象,分别占柑橘园的52.5%、36.4%和26.4%。因此,该区柑橘生产要因地制宜,建议在柑橘园增施B、Zn肥,石灰和其它碱性肥料,同时减少喷施含Cu杀菌剂。

关 键 词:柑橘园    土壤有效养分    肥力状况
收稿时间:2009-7-9

Status of soil fertility in citrus orchards of Chongqing Sanxia Reservoir Area
ZHOU Xin-bin,SHI Xiao-jun,SUN Peng-shou,LI Wei,DAI Heng-lin,PENG Liang-zhi,CHUN Chang-pin.Status of soil fertility in citrus orchards of Chongqing Sanxia Reservoir Area[J].Plant Nutrition and Fertilizer Science,2010,16(4):817-823.
Authors:ZHOU Xin-bin  SHI Xiao-jun  SUN Peng-shou  LI Wei  DAI Heng-lin  PENG Liang-zhi  CHUN Chang-pin
Institution:1.College of Resources and Environmental Science,Southwest University,Chongqing 400716,China;
Abstract:Knowing soil nutrient fertility status is a basis to formulate a suitable fertilization strategy. Top soil (0-30cm) samples collected from 459 citrus orchards in Chongqing Sanxia Reservoir Area were tested and classified in present study. The results showed that the soil pH of 78.7% orchards was suitable for citrus growth, soil organic matter of 60.3% orchards were low, and the deficiency rate of available macro-nutrients N and P was 72.4% and 41.7% respectively, while soil available K were high in some orchards. The deficiency rate of available B, Zn, Fe and Mn was 86.3%, 37.9%, 27.0% and 20.3%, respectively. The results also indicated that amounts of citrus soils which have excessive available Fe, Mn and Cu accounted for 52.5%, 36.4% and 26.4% of total citrus orchards. To this effect, it was suggested that more B, Zn, lime or other alkaline fertilizer and less Cu fungicide should be used in the tested citrus orchards.
Keywords:citrus orchard  soil available nutrients  the status of soil fertility
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