【作者】 马孝义； 王文娥； 康绍忠； 李坤； 王凤翔；

【Author】 Ma Xiaoyi, Wang Wen’e, Kang Shaozhong, Li Kun, Wang Fengxiang (Northwest Agricultural & Forestry Sci-Tech University, Yangling, Shaanxi Province 712100, China; Resources Department of Shaanxi Province, Xi’an 710006, China)

【机构】 西北农林科技大学； 陕西省水利厅；

【摘要】 在分析陕北、渭北地区早地小麦、玉米和苹果生育期水分供需状况的地区分异基础上,研究不同分区典型县区3种作物的降水产量积分回归函数,探讨其降水对产量的影响规律,确定了不同分区3种作物的最佳补充灌溉时期。研究表明:通过分析作物降水产量积分回归函数变化规律来确定最佳补灌时期,具有工作量小,代表性高的优点,可用于大区域作物最佳补灌时期的确定。更多还原

【Abstract】 Based on analyzing the regional feature of weather & soil water deficit, the production integer-correction function of typical counties and the effects of rainfall on winter wheat, cron, apple production in different district is studied, the optimal supplementary irrigation periods of above plants in different districts are concluded. The results show that using analysis production integer-correction function to study optimal supplementary irrigation periods of dry land plants is simple and do not need experiment works, which can be used to decide the large regions optimal supplementary irrigation periods of dry land.更多还原