摘要
ASI方法是在多年来国际上土壤测试和推荐施肥的基础上逐步发展形成的一套高效、快速、精确的,用于土壤养分测试和推荐施肥的完整方法。文章就ASI法与常规化学方法在土壤速效氮、磷、钾的提取及测定,ASI法与作物吸肥的相关性等国内外研究进展作对比分析及综述,并对该领域存在问题和今后研究方向作了探讨。
The ASI method is a highly efficient, rapid and accurate method on measuring the soil nutrient and recommended fertilization which is developed based on the soil detection and recommended fertilization internationally for many years. The extraction and determination of available nitrogen, phosphorus, potassium in soil by ASI method and conven- tional chemical method were comparatively analyzed in the paper, the progresses on the correlation between ASI method and the fertilizer absorption of crops at home and abroad were summarized, and the existing problems and the future research were also discussed.
出处
《广西农业科学》
CSCD
2009年第4期391-394,共4页
Guangxi Agricultural Sciences
基金
中加合作项目"中国持续农业中的养分管理(NMS)"资助(Sichuan200201)
关键词
ASI法
常规化学方法
土壤速效氮
磷
钾
含量测定
作物吸肥
相关性
ASI method
conventional chemical method
available nitrogen, phosphorus, potassium in soil
determination of content
fertilizer absorption of crop
correlation
