共 19 条
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Low-altitude aerial photography for optimum N fertilization of winter wheat on the North China Plain[J] . L Jia,A Buerkert,X Chen,V Roemheld,F Zhang.Field Crops Research . 2004 (2)
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SPAD Meter Versus Tristimulus Colorimeter to Estimate Chlorophyll Content and Leaf Color in Sweet Pepper[J] . Ana Carla Madeira,Armando Ferreira,Amarilis de Varennes,Maria Isabel Vieira.Communications in Soil Science and Plant Analysis . 2003 (17-1)
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