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应用生态学报 ›› 2001, Vol. 12 ›› Issue (4): 569-572.

• 研究论文 • 上一篇    下一篇

长期单施化肥对土壤性状及作物产量的影响

吕家珑, 张一平, 王旭东, 赵高霞, 张春惠   

  1. 西北农业大学资源与环境科学系, 杨凌 712100
  • 收稿日期:1999-02-02 修回日期:1999-04-27 出版日期:2001-07-25 发布日期:2001-07-25
  • 通讯作者: 王旭东
  • 作者简介:吕家珑,男,1962年9月生,博士,教授.主要从事土壤与农业化学方面的教学和研究工作,发表论文40多篇.E-mail:ljl@public.xa.sn.cn
  • 基金资助:

    国家自然科学基金重大项目(39790100)

Effect of long-term single application of chemical fertilizer on soil properties and crop yield

Lü Jialong, ZHANG Yiping, WANG Xudong, ZHAO Gaoxia, ZHANG Chunhui   

  1. Northwestern Agricultural University, Yangling 712100
  • Received:1999-02-02 Revised:1999-04-27 Online:2001-07-25 Published:2001-07-25

摘要: 1978~1998年在陕西关中地区农田的长期定位试验研究表明,长期单施化肥基本上可以维持土壤有机质和NP水平;单施化肥与化肥配合有机肥处理的作物产量基本相当.但是,单施化肥处理使土壤腐殖质能量水平降低,分子缩合程度和芳构化度增大,"老化”作用增强.

Abstract: A long-term located experiment showed that single application of chemical fertilizer basically sustained the quantity le- vel of soil organic matter,nitrogen and phosphrous,reduced the energy level of soil humus and inhanced its condensation degree,aromaticity and aging function.The corp yield was basically the same as that of combined application with organic manure.

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