首页 | 本学科首页   官方微博 | 高级检索  
     

旱地土壤中的肥水激励机制
引用本文:汪德水 程宪国. 旱地土壤中的肥水激励机制[J]. 植物营养与肥料学报, 1995, 1(1): 64-70. DOI: 10.11674/zwyf.1995.0110
作者姓名:汪德水 程宪国
作者单位:1.中国农业科学院土壤肥料研究所 100081
摘    要:本文阐述了养分和水分对作物产量及其增产潜力的交互影响。肥和水既是作物产量的决定因素,又是人为的可控因素。作物需要的营养离子从土壤向根表面的移动,受土壤水分含量的影响,特别是在旱地。肥是土水系统的物质基础,水是肥效发挥的关键,二者互为制约,又互相促进。肥水激励机制要求二者有一个适宜的匹配,这样,养分和水分才能发挥其最大经济效益。

关 键 词:旱地   肥水激励机制   肥水协调效应   增产潜力

THE EXCITATION MECHANISM BETWEEN FERTILIZER AND WATER UNDER DRYLAND CONDITION
Wang Deshui Cheng Xianguo Zhang Meirong Zhou Yong. THE EXCITATION MECHANISM BETWEEN FERTILIZER AND WATER UNDER DRYLAND CONDITION[J]. Plant Nutrition and Fertilizer Science, 1995, 1(1): 64-70. DOI: 10.11674/zwyf.1995.0110
Authors:Wang Deshui Cheng Xianguo Zhang Meirong Zhou Yong
Affiliation:1.Soil and Fertilizer Inst. CAAS;100081
Abstract:This paper described the interactive effects of fertilizer and water on yield and potential yield increase of crops. Fertilizer and water are decisive and controllable factors in agricultural production. The efficiency of fertilizer is siginificantly affected by soil moisture, escapcially in dryland. Fertilizer is the material base in water-soil system and water is a key factor in increasing fertilizer use efficiency. They are promotive and restrictive to each other. An excitation mechanism exists between fertilizer and water, which require a good management and proper balance of fertilizer and water, for the maximum economic benefit from use of these two limited resources.
Keywords:
本文献已被 维普 等数据库收录!
点击此处可从《植物营养与肥料学报》浏览原始摘要信息
点击此处可从《植物营养与肥料学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号