摘要
化肥减施增效是当前农业生产的主要指导方针,如何减少西藏粮食主产地高肥用量区化肥用量,降低资源浪费,减少环境污染是迫切需要解决的问题。本文对西藏化肥利用状况进行简评,分析了化肥使用中存在的问题,简述了影响化肥利用率的原因。提出以土壤培肥与提高化肥利用率为指导思想的化肥减施措施,在研究基础上具体归纳了增施有机肥、分区施肥、肥水耦合、绿肥压青、合理密植等技术措施,为我区化肥减施增效提供依据和实用方法。
：The reduction of fertilizer application and efficiency is the main guiding principle of current agricultural production. How to reduce the amount of chemical fertilizer used in the high-yield area of Tibet,s main grain producing areas, reduce resource waste, and reduce environmental pollution are urgent problems to be solved. The present paper makes a brief review of the utilization status of chemical fertilizers in Tibet, analyzes the problems existing in the use of chemical fertilizers, and briefly describes the reasons that affect the utilization rate of chemical fertilizers. This paper puts forward the measures of reducing fertilizer application based on soil fertility and improving the utilizationrate of chemical fertilizers. On the basis of research, it specifically summarizes the technical measures such as adding organic fertilizer, zoning fertilization, coupling of fertilizer and water, green fertilizer compaction and reasonable close planting. This Provides basis and practical methods for reducing fertilizer application and increasing efficiency.
作者
刘国一
普布贵吉
李雪
谢永春
马瑞萍
高雪
LIU Guo-yi;Pubuguiji;LI Xue;XIE Yong-chun;MA Rui-ping;GAO Xue(Institute of Agricultural Resources and Environment Research,Tibet Academy of Agricultural and Animal Husbandry Sciences,Tibet Lhasa 850032,China)
出处
《西藏农业科技》
2018年第3期48-52,共5页
Tibet Journal of Agricultural Sciences
基金
西藏重大科技专项(XZ201801NA01-3)
西藏财政专项(西藏不同气候类型区土壤养分长期定位研究)
关键词
西藏
化肥
域施增效
肥料利用率
Tibet
Fertilizer
Reduction of application efficiency
Fertilizer utilization
