Correlation Analysis of Mineral Nutrients in Citrus Leaf and Fruit Quality in Kaixian County
In order to understand the nutritional status of orange orchards in Kaixian country, leaf samples were taken in seven productive citrus orchards and N, P, K, Ca, Mg, Fe, Mn, Cu, Zn and B in them were analyzed. The results showed that the average levels of N, P, K, Ca, Mg, Fe, Mn, Cu, Zn and B were (3.0±0.06)%, (0.16±0.097)%, (0.8±0.34)%, (4.95±0.17)%, (0.29±0.19)%, (0.3±0.14)%, (124.5±0.18) mg/kg, (31.83±0. 24) mg/kg, (11.77±0.15) mg/kg, (8.11±0.34) mg/kg and (40. 22±0.37) mg/kg, respectively. Correlation analysis indicated that there were relationships be- tween the levels of the 11 elements. P was in a highly significant positive correlation with S and B and in a highly significant negative correlation with Mn and Zn. Most of the nutritional elements were correlated negatively with TSS (total soluble solids) but positively with Vc.