The study investigated the effect of fertilization on soil properties under different poplar species in nursery condition in Kashmir. The experiment was laid out in split plot design (SPT) in nursery beds of (3.60m 2 ) at spacing of (60cm x 30cm) with 36 treatments, four poplar species (Populus nigra, P. Ciliata, P. alba and P. balsamifera), three levels of N (N 0 , N 75 , N 150 kg -1 ) and three levels of P (P 0 , P 60 , P 120 kg -1 ) replicated three times. The results indicated that the chemical constituents of soil decreased in first year from initial values in respect of pH, N, P, K, Ca and Mg but increased subsequently in second year except pH. The average available soil N, P, K, Ca and Mg was recorded maximum at T 9