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中国农学通报 ›› 2018, Vol. 34 ›› Issue (18): 119-125.doi: 10.11924/j.issn.1000-6850.casb17050066

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

玉龙纳西族自治县土壤肥力分级及评价

黄维恒,包立,熊荟菁,邓洪,韩云昌,刘惠见,张乃明   

  1. 云南农业大学 资源与环境学院,云南农业大学 资源与环境学院,云南农业大学 资源与环境学院,云南农业大学 资源与环境学院,云南农业大学 资源与环境学院,云南农业大学 资源与环境学院,云南农业大学发展规划处
  • 收稿日期:2017-05-15 修回日期:2018-05-25 接受日期:2017-07-06 出版日期:2018-06-26 发布日期:2018-06-26
  • 通讯作者: 张乃明
  • 基金资助:
    云南省科技创新人才计划“云南省土壤资源利用与保护创新团队”(2015HC018);对外科技合作计划“魏复盛院士工作站”(2015IC022)。

Soil Fertility Classification and Evaluation in Yulong Naxi Autonomous County

  • Received:2017-05-15 Revised:2018-05-25 Accepted:2017-07-06 Online:2018-06-26 Published:2018-06-26

摘要: 为了指导云南省玉龙县的农业生产实践,通过对云南省玉龙县的216个土壤样品进行含量测定和统计分析,分析与评价玉龙县土壤的酸碱度状况和主要肥力指标。结果表明:玉龙县土壤pH平均值为7.08,土壤有机质、土壤全氮、碱解氮、速效磷、速效钾和缓效钾的平均含量分别为17.12 g/kg,1.83 g/kg,134.67 mg/kg,16.75 mg/kg,139.10 mg/kg,896.56 mg/kg。大部分土壤pH近中性偏碱,速效磷总体含量处于中等水平,全氮和碱解氮含量总体处于中等水平,而有机质、速效钾和缓效钾含量水平较高。各种营养元素的变异程度由小到大依次为土壤碱解氮、有机质、速效钾、缓效钾、全氮、速效磷。为此初步提出了调控土壤酸碱性,稳定土壤氮磷、适当增施有机肥、钾肥的施肥建议。

关键词: N2O排放, N2O排放, CO2排放, 作物秸秆, 尿素, 茶园土壤

Abstract: To guide agricultural production in Yulong of Yunnan, the authors analyzed 216 soil samples from Yulong Naxi Autonomous County to study soil pH value and main fertility indexes. The results showed that the average soil pH value was 7.08, and the average content of soil total nitrogen, alkali-hydrolyzable nitrogen, available P, available K, slowly available K and soil organic matter was 1.83 g/kg, 134.67 mg/kg, 16.75 mg/kg, 139.10 mg/kg, 896.56 mg/kg and 17.12 g/kg, respectively. Soil pH value was mostly alkaline or neutral. Available P, total nitrogen and alkali- hydrolyzable nitrogen were in general medium level, while organic matter, available K, and slowly available K were in high level. The variation degree followed an order of available P> total nitrogen> slowly available K> available K> organic matter> alkali- hydrolyzable nitrogen. Therefore, the authors advised to control soil pH value, stabilize soil nitrogen and phosphorus, appropriately enrich organic fertilizer and potash fertilizer.

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