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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (23): 158-161.doi: 10.11924/j.issn.1000-6850.casb15030004

所属专题： 耕地保护

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

新垦耕地土壤有机质含量分析方法的探讨

王 飞,秦方锦,吴丹亚,葛超楠,岑汤校,陆若辉   

  1. 宁波市种植业管理总站,宁波市种植业管理总站,宁波市农业监测中心,宁海县农业技术推广总站,宁海县农业技术推广总站,浙江省农业技术推广中心
  • 收稿日期:2015-03-02 修回日期:2015-07-12 接受日期:2015-04-23 出版日期:2015-08-20 发布日期:2015-08-20
  • 通讯作者: 陆若辉
  • 基金资助:
    农业部测土配方施肥补贴项目 （财农[2012]99号）

Analysis Method of Soil Organic Matter in Newly Cultivated Wasteland

  • Received:2015-03-02 Revised:2015-07-12 Accepted:2015-04-23 Online:2015-08-20 Published:2015-08-20

PDF (PC)

441

摘要： 有机质水平常用作评价土壤肥力的首要指标，如何分析土壤有机质含量对正确评估土壤肥力有重要意义。在探讨现行标准在新垦耕地土壤有机质含量分析中存在问题的同时，提出了相应的改进方法。结果表明，用现行NY/T1121.6-2006标准测定的是以＜2mm土粒为基数的有机质含量；若以包括＞2mm砾石为基数计算时，新垦耕地土壤有机质水平下降了22%（平均值从23.1g/kg降至18.0g/kg）；按照耕地质量评定与分等定级技术规范(DB33/T895—2013)，土壤有机质生产能力赋值由0.84分降低到0.4分，属于低水平。研究结果为准确评估新垦耕地土壤有机质含量提供参考。

关键词: 茄子, 茄子, WRKY1, 基因克隆, 序列分析

Abstract: Organic matter is a primary index to judge soil fertility, and how to analyze the content of soil organic matter has important significance on the correct evaluation of soil fertility. The author analyzed the problems of current assay methods of soil organic matter in newly cultivated wasteland, and put forward the improved method. The results showed that the contents of soil organic matter according to the current standard (NY/T 1121.6—2006) was based on the particles (＜2 mm). The levels of soil organic matter declined by 22% (mean from 23.1 to 18.0 g/kg) when the gravels (＞2 mm) were included. While according to the technical specification of quality evaluation and grading in the cultivated land (DB33/T 895—2013), the productivity valuation of soil organic matter belonged to the low level (reduced from 0.84 to 0.4). This study provided reference for the accurate evaluation of soil organic matter content in newly cultivated wasteland.