摘要
本文采用通径分析方法对作物气候产量与光、温、水进行统计分析，证实降水是影响产量的主要因子，再对各作物气候产量与其不同生育时段降水进行通径分析，得到其不同时段内丰产需水指标。对发展节约型的灌溉农业具有一定的参考价值。
In this paper the path analysis method is used to match statistical analysis for crop yield with light,temperature,precipitation.The results show that precipitation is the leading affecting factor for yield.Then by analysing the relationship between crop climatic yield and precipitation we obtained the water requirement index in different growth durations.This research result can be used to develop the economical irrigation agriculture.
出处
《山东农业大学学报（自然科学版）》
CSCD
1998年第2期176-182,共7页
Journal of Shandong Agricultural University：Natural Science Edition
基金
国家重点攻关课题
