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中国农学通报 ›› 2016, Vol. 32 ›› Issue (5): 101-105.doi: 10.11924/j.issn.1000-6850.casb15080130

所属专题: 现代农业发展与乡村振兴

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

扬州市农业化肥施用现状及发展对策探讨

李文西   

  1. 扬州市土壤肥料站
  • 收稿日期:2015-08-26 修回日期:2015-10-23 接受日期:2015-11-19 出版日期:2016-02-19 发布日期:2016-02-19
  • 通讯作者: 李文西
  • 基金资助:
    江苏省农业三新工程项目“智能化农技服务点对点实时交互平台的研制与应用”(SXGC[2015]217);公益性行业(农业)科研专项项目“农产品产地重金属污染安全评估技术与设备开发”(201403014-2)。

Application Situation and Development Countermeasures of Chemical Fertilizer in Yangzhou

  • Received:2015-08-26 Revised:2015-10-23 Accepted:2015-11-19 Online:2016-02-19 Published:2016-02-19

摘要: 为掌握扬州市耕地质量现状,调查统计了扬州市60 年粮食产量、化肥施用的变化趋势。研究结果表明:扬州市粮食产量呈增加趋势,粮食单产由2227.5 kg/hm2上升至10732.5 kg/hm2,而化肥用量先增后减;分析了粮食产量与化肥用量二者之间的关系,早期(1952—1982 年)二者存在明显的相关性(R2=0.8110)。同时,笔者阐述了扬州市当前耕地质量、肥料利用率存在的问题以及原因,并提出了耕地质量提升对策,不断提高基础地力产量和肥料利用率,确保耕地质量健康可持续发展。

关键词: 林业产业, 林业产业, 产业集群, 策略

Abstract: The variation trends of crop yield and chemical fertilizer application in sixty years were studied to know the status of farmland quality in Yangzhou. The results showed that the crop yield increased generally from 2227.5 kg/hm2 to 10732.5 kg/hm2, and the application amount of chemical fertilizer increased first and then decreased. The relationship between the crop yield and the chemical fertilizer application amount were analyzed, and it presented an apparent correlation from 1952 to 1982 (R2=0.8110). The authors elaborated the problems in farmland quality and fertilizer use efficiency, and analyzed the reasons behind these problems. The ountermeasures for improving the farmland quality were proposed, such as gradually improving basic soil fertility and fertilizer use efficiency to guarantee the sustainable development of farmland quality.

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