A field experiment combined with the point observation method was conducted to study the relationship between the concentrations of mineral nutrient in the flowers and leaves of Nanfengmiju mandarin(Citrus kinokuni Hort.ex Tanaka)to determine whether flower analysis could be used for nutrient diagnosis.The results showed that concentrations of K,Ca and Mn in the leaves were significantly positive correlated with those in the flowers in two years.Concentrations of Mg,Cu and Fe in the flowers was significantl...