SPAD值在玉米氮素营养诊断及推荐施肥中的应用

被引：26

作者：

童淑媛 ^{[1
,2
]}

宋凤斌 ^{[1
]}

机构：

[1] 中国科学院东北地理与农业生态研究所

[2] 中国科学院研究生院

来源：

农业系统科学与综合研究 | 2009年 / 25卷 / 02期

关键词：

玉米; SPAD值; 氮素; 营养诊断; 推荐施肥;

D O I：

暂无

中图分类号：

S513.062 [];

学科分类号：

0901 ;

摘要：

氮肥对玉米生产具有很大的限制作用,根据玉米生长状况和营养需求调节氮肥投入可提高其经济效益和生态效益。叶绿素仪是近年来在氮素营养诊断和氮肥推荐中较多使用的便携式仪器,可通过叶色值的测定快速、简便、准确、非破坏性监测植物氮素营养,为变量推荐施肥提供所需信息。在此对叶绿素仪在玉米氮素营养诊断和推荐施肥上应用的研究进行了综述,重点阐述了影响玉米叶片SPAD值对氮素营养判断的因素及相应的解决办法,并分析了今后SPAD值仪诊断氮素营养的研究方向。参52。

引用

页码：233 / 238

页数：6

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