四川农业大学学报 ›› 2004, Vol. 22 ›› Issue (01): 53-57.doi: 10.16036/j.issn.1000-2650.2004.01.015

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梓潼县农田养分平衡与土壤养分变化研究

张锡洲, 李廷轩, 周建新, 张仁绥   

  1. 四川农业大学 资源环境学院, 四川 雅安 625014
  • 收稿日期:2004-02-19 出版日期:2004-03-31 发布日期:2017-03-04
  • 基金资助:
    四川省教育厅重点项目(98000014030;2003A022);四川省科技厅应用基础项目(03JY029-030-1)资助

Study on the Farmland Nutrient Balance and the Dynamic VariationTendency of Soil Nutrients in Zitong County

ZHANG Xi-zhou, LI Ting-xuan, ZHOU Jian-xin, ZHANG Ren-sui   

  1. College of Resource and Environment, Sichuan Agricultural University, Yaan 625014, Sichuan, China
  • Received:2004-02-19 Online:2004-03-31 Published:2017-03-04

摘要: 根据相关农业统计资料研究了梓潼县1985、1990、1993、1996、1998、1999共6年的农田养分平衡状况。结果表明:农田氮素平均盈余41.23%;磷素平均盈余32.92%;钾素平均亏缺56.29%。通过对2000年和1983年第二次土壤普查的土壤养分进行对比研究,分析了近16年来土壤养分动态变化的趋势,阐述了农田养分平衡状况对土壤养分变化的影响,并提出了实现农田养分平衡的对策。

关键词: 养分平衡, 土壤养分, 动态变化

Abstract: According to agricultural statistical data, the farmland nutrient balance within 6 years(1985, 1990, 1993, 1996, 1998, 1999) in Zitong county was discussed. The results show that the nitrogen in farmland is 41.23 percent of surplus, the phosphorus is 32.92 percent of surplus and the potassium is 56.29 percent deficient on the average. Comparing with the content of soil nutrients between 1983 and 2000, the dynamic changing tendency during nearly 16 years was analyzed and the effects of farmland nutrient balance on soil nutrients level were discussed. And the regulating ways relevant of changing construction of fertilizer in farmland is given.

Key words: nutrient balance, soil nutrients, dynamic changing

中图分类号: 

  • S158