• ISSN 1008-505X
  • CN 11-3996/S
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. DOI: 10.11674/zwyf.2010.0406
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. DOI: 10.11674/zwyf.2010.0406
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]. Journal of Plant Nutrition and Fertilizers, 2010, 16(4): 817-823. DOI: 10.11674/zwyf.2010.0406
Citation: 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]. Journal of Plant Nutrition and Fertilizers, 2010, 16(4): 817-823. DOI: 10.11674/zwyf.2010.0406

三峡重庆库区柑橘园土壤养分丰缺状况研究

Status of soil fertility in citrus orchards of Chongqing Sanxia Reservoir Area

  • 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。

     

    Abstract: Knowing soil nutrient fertility status is a basis to formulate a suitable fertilization strategy. Top soil(0-30 cm)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. Therefore, it was suggested that more B, Zn, lime or other alkaline fertilizer and less Cu fungicide should be used in the tested citrus orchards.

     

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