The effects of phosphorus(P)and antimony(Sb)on the physiological change of Ficus tikoua through sand culture method on biomass,chlorophyll content,and chlorophyll fluorescence parameters were discussed.The simple factor analysis of variance and further statistical method of multiple comparison and independent exponent t-test were used.The results showed that low concentrations of phosphorus had a promoting effect on the accumulation of dry matter in the stems and leaves of Ficus tikoua.Phosphorus not only increased the phosphorus content in the roots and leaves of Ficus tikoua,but high concentrations of phosphorus also promoted the absorption of potassium in the roots of Ficus tikoua.High concentrations of phosphorus can increase the content of free proline in leaves,as well as the content of protective carotenoids in the leaves,reducing damage to the photosynthetic system.Phosphorus has a promoting effect on the growth of Ficus tikoua under antimony treatment,which can increase the accumulation of dry matter in the roots and leaves of Ficus tikoua.Moreover,high concentrations of phosphorus can alleviate the toxic effect of antimony,reduce the content of proline in leaves,and promote the synthesis of chlorophyll a and carotenoids.In addition,an appropriate amount of phosphorus can promote the absorption of antimony by Ficus tikoua roots and limit the storage of antimony in Ficus tikoua leaves.
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