Relationships between SPAD Readings and the Contents of Chlorophyll and Nitrogen in Chinese Cabbage Leaves
Shuyao Song · Northern Horticulture · 2010
The relationships between SPAD readings and the contents of chlorophyll and nitrogen in Chinese cabbage leaves and nitrogen applications were researched.The results showed that there was a significant correlation between SPAD readings and the contents of chlorophyll and nitrogen in Chinese cabbage leaves and N applications,chlorophyll content of Chinese cabbage leaves would be determined quickly using SPAD-502 chlorophyll meter,SPAD readings could be used to N nutritional diagnosis of plants.