Results showed that the chlorophyll content of young leaves after FePS application was higher than CK, but lower than that of FeEDTA, BASF, FCU application in earlier stage, similar to FeEDTA, BASF, FCU in later period .

• 结果表明， 叶面喷施 FePS后，山定子新叶叶绿素的变化虽明显好于 CK，但前期不如 FeEDTA、BASF、FCU喷施效果明显，后期 喷施FePSP和FeEDTA、FCU、BASF叶绿素含量相近。