玉米品种冠层NDVI与叶绿素的关系

摘要: 本文研究了玉米不同时期通过应用GreenSeeker 测定不同品种的玉米在不同施氮条件下归一化差值植被指数(NDVI)与叶片叶绿素含量的变化及其相关性。研究结果表明：不同时期玉米叶绿素含量与NDVI值是不同的，叶绿素含量和 NDVI值均随施氮量的增加而增大，其中最大施肥量增幅较大，叶绿素最大增幅为33%，NDVI最大增幅为7.25%，且叶绿素与NDVI呈显著正相关。不同的玉米品种增幅也不同，郑单958，吉农302要好于农大588。

The research between Corn varieties canopy of NDVI and chlorophyll

In order to study the interrelation between the different varieties of corn chlorophyll,Normalized Difference Vegetation Index（NDVI） and the nitrogen applying rate,as well as the correlation between chlorophyll and NDVI,this paper through the application of Green Seeker at different times on different varieties of corn under different nitrogen applying rate Normalized Difference Vegetation Index（NDVI）,and the use of 95% alcohol dipping method to measure the chlorophyll content.The results showed that at different times the chlorophyll content of corn and the NDVI values were different,chlorophyll content and NDVI values were increased with the nitrogen applying rate,the maximum fertilizer increased,chlorophyll increased of 33%,NDVI increased of 7.25%,the different varieties of corn increased.