The experiment of controlled-release fertilizers(CRFs) on growth of Rosa chinensis plant in pot was conducted in comparison with common compound fertilizers(CCFs).The research results were: The nutrient release of CRFs could be characterized by changes of available N

P and K.Compared with the CCF

the CRF significantly increased the contents of NO-3-N

NH 4-N

available P and available K in the soil and promoted the conditions of Rosa chinensis.The contents of chlorophyll

plant height

stem diameter

plant width and growth potential of the Rosa chinensis treated by CRFs were significantly greater than those by CCFs and CK.Furthermore

the treatment with CRFs distinctly advanced efflorescence

boosted florescence flourish and extended view period

which promoted Rosa chinensis growth.Under the experiment condition

the optimum amount for fertilizer application on Rosa chinensis was N 1.6g g/pot soil.