金昌市土壤养分现状与施肥建议
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:


Soil Nutrients in Farmlands of Jinchang City and Fertilization Recommendations
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    通过2002年秋后对甘肃省金昌市1县1区12个乡镇10万hm2耕地的601个土样化验分析,结果表明:土壤有机质含量平均15.1 g/kg,大面积处于较缺和中等状况,而且较缺面积在扩大,中等面积在减少。土壤碱解N含量平均38 mg/kg,以缺和较缺占据了绝大部分面积,而且缺的面积在扩大,较缺面积在减少。土壤有效P含量平均20.9 mg/kg,明显增加,已处于中等和较丰富状况,也有一定面积处于较缺状况。土壤速效K含量平均158 mg/kg,明显下降,大面积处于较丰富和中等状况,中等面积大幅度增加。

    Abstract:

    In 2002,601 soil samples collected from sites extensively scattered over 100,000 hm2 of farmlands in 12 villages and towns of Jingchang City,Gansu Province were analyzed with results showing that the average content of soil organic matter in those soil was 15.1g/kg,and a large proportion of the farmlands was low or medium;and the proportion of the farmlands low in soil organic matter was growing while the one that was medium was shrinking.On the other hand,the average content of alkalytic nitrogen in those farmlands was 38 mg/kg,and farmlands deficient or fairly deficient in alkalytic nitrogen accounted for the most part of the farmlands.And the former was expanding and the latter reducing.The average content of available P in those farmlands was 20.9 mg/kg,showing an obvious increase.Most of the farmlands were high or medium in available P content and only a small portion was still low.The average content of available K in those farmlands was 158 mg/kg,showing an obvious drop.Most of the farmlands remained high or medium.The acreage of the farmland medium in soil available K was growing by a large margin.

    参考文献
    相似文献
    引证文献
引用本文

杨炳成.金昌市土壤养分现状与施肥建议[J].土壤,2006,38(2):228-231. YANG Bing-cheng. Soil Nutrients in Farmlands of Jinchang City and Fertilization Recommendations[J]. Soils,2006,38(2):228-231

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2017-05-19
  • 出版日期: