A pot experiment was performed with five treatments

i.e.CK(neither urea nor chicken manure was applied)

N100 (100% of nitrogen was provided by urea)

M10N90(10% and 90% of nitrogen were provided by chicken manure and urea

respectively)

M30N70(30%and 70%of nitrogen were provided by chicken manure and urea

respectively) and M30N70 (50%and 50%of nitrogen were provided by chicken manure and urea

respectively).The experiment was to determine the effect of chicken manure co-applied with inorganic fertilizer on the photosynthesis

chlorophyll content and root activity and construction

as well as the growth and nutrient uptake of one-year-old poplar seedlings.Results showed that the photosvnthetic(Pn)

transpiration rate(Tr)

stomatal rate(Gs)and intercellular concentration(Ci)of poplar seedlings leaves in M30N70 treatment were significantly increased as compared with that in N100 treatment.M30N70 treatment also resulted in the higher chlorophyll content and root activity

with increases of 45.80% and 36.39% as compared with the N100 treatment

respectively.Chicken manure co-applied with inorganic fertilizer had beneficial effects on the root growth of poplar seedlings

especially the weight and the ratio of fine root.In addition

compared with the N100 treatment

the M30N70 treatment significantly increased the root，shoot and dry leaf weight accumulation

as well as the N

P and K contents.Consequently

the N

P

and K uptakes increased by 44.99%

65.11%and 65.04%

respectively.However

in M10N90 and M50N50 treatments

less effect on photosynthesis characteristics and the nutrient uptake of one-year-old poplar seedlings was observed than that in M30N70 treatment.Chicken manure co-applied with inorganic fertilizer

especially the M30N70 treatment

achieved the best effects on the growth and nutrients uptake of poplar seedlings.