摘要
加拿大Ａｌｂｅｒｔａ省属半干旱半湿润农业区，土壤水肥管理是农业生产的关键问题。氮和磷是限制作物产量的主要营养元素。综述了Ａｌｂｅｒｔａ省在旱作和灌溉条件下，以水定产测土施肥技术体系校验研究的方法，数据处理的模型以及研究结果的应用。评价了该体系的先进性和实用性。
Alberta Province belongs to semi arid and semi humid agricultural area. The management of soil moisture and fertility is the key issue of agricultural production. N and P are most often responsible for limiting crop yields. This article summerizes the method of calibration research, the model of data precess, and the application of research achievements about the technical system of soil test and fertilizer recommondation based on the available water for crops in Alberta under the dryland and irrigation conditions, and assesses the advantages and practicality of this system.
出处
《干旱地区农业研究》
CSCD
北大核心
1998年第1期84-89,共6页
Agricultural Research in the Arid Areas
关键词
测土施肥
以水定产
加拿大
soil test and fertilizer recommondation, determination of crop yield based on the available water, Alberta,Canada
