摘要
依据河北省临西、望都试验站冬小麦灌溉试验资料,采用多元回归分析方法,分别求出Jensen、M inhas、B lank、S tew art及S ingh模型的敏感指数(系数),采用F检验法及复相关系数检验法对敏感指标进行分析检验,得出临西、望都二地适宜的冬小麦水分生产函数模型,并探讨了上述模型的空间变化特征。
According to the material of irrigation of winter wheat in Linxi and Wangdu in Hebei province,We get parameters of five models which are Jensen, Minhas, Blank, Stewart, Singh by using regress method. The material is contain 5 years which was from 1984 to 1988. Compared the precision of equations and the correlation of calculated yield and real yield, we get the proper models of water production function for winter wheat and the changing rules of models with different areas.
出处
《灌溉排水学报》
CSCD
北大核心
2005年第4期58-61,共4页
Journal of Irrigation and Drainage
基金
国家高技术研究发展计划(2002AA6Z3031)
关键词
水分生产函数
冬小麦
河北省
water product function
winter wheat
Hebei Province
