覆膜冬小麦的生理生态效应研究  

Study on the physiology-ecological effect of winter wheat covered with plastic membrane

作　　者：徐征和 张保民 刘景华[3] 孙清明 

机构地区：[1]山东省水科院资环所,济南250013 [2]引黄济青管理局 [3]山东省水利勘测设计院 [4]济南市节水农业推广中心

出　　处：《节水灌溉》2002年第3期13-14,共2页Water Saving Irrigation

基　　金：山东省九五攻关项目"农业节水模式研究与示范"课题内容

摘　　要：本文通过分析覆膜与不覆膜冬小麦的生理生态指标 ,总结了覆膜冬小麦的叶水势、光合速率、蒸腾速率等的变化规律 ,揭示了覆膜冬小麦节水、增产的机理 ,提出覆膜在不同生育阶段的不同效应情况 ,指出了适时揭膜的合理性。In line with the analysis of the physiology ecology index with covering and without covering of plastic membrane, laws of change of water potential of leaves, photosynthesis rate, and evaporation rate of the winter wheat covered with membrane have summarized. This paper brought to light the mechanism of water saving and yield increasing of winter wheat covered with membrane and discussed the different effect of mulch at different growing periods. Authors also gave the best time to take off the membrane.

关 键 词：冬小麦 覆膜 土壤 含水量 生理生态效应 

分 类 号：S512.11[农业科学—作物学]