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Effects of fertilization on wheat flag leave physiological characteristics and yield in dryland area in straw mulching condition
Authors
徐福利
王渭玲
Publication date
1 January 2003
Publisher
Abstract
在陕西半湿润偏旱地区秸秆覆盖保墒条件下研究氮素施用方式对小麦后期旗叶衰老及产量的影响。结果表明,秸秆覆盖配合施肥可以提高灌浆期旗叶的叶绿素含量,延缓叶衰老,延长叶片功能期,有利于提高粒重和产量;施肥可以抑制叶绿素降解,而分次施N对抑制叶绿素的降解作用更强;施N肥延缓了旗叶蛋白质的降解,分次施N处理旗叶可溶性蛋白质含量相对较高,而且随时间降低较慢,后期追施N肥可延长叶片功能期;施N肥加速了旗叶丙二醛降解,分次施N处理丙二醛含量相对较低,丙二醛(MDA)含量随时间增高速度较慢,三次施N的丙二醛含量比两次施氮低
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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oai:ir.iswc.ac.cn/:361005/2311
Last time updated on 21/09/2018