doc 关键词： 冬小麦；冠层光谱；变量施肥；产量 [gap=2062]Key words: Winter wheat; Canopy spectral reflectance; Variable nitrogen application; Yield ...
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The canopy spectral reflectance were gradually getting larger in the visible region and smaller in the near infrared region as the growth stage went on.
冠层光谱反射率随发育期推移在可见光范围内逐渐增大，在近红外区域逐渐降低；
The research was conducted to determine the relationships of sugar and nitrogen status and its ratio in wheat leaves to canopy spectral reflectance under different nitrogen and water supply levels.
在不同土壤水氮条件下，研究了小麦中后期叶片碳氮状况及其比例与冠层光谱反射特征的关系。
With a mobile spectral radiometer, spectral reflectance of wheat canopy was observed continuously.
利用便携式冠层光谱仪对小麦进行连续观测获取光谱数据。
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