Nitrogen accumulation in the early rice was observed in the order of NPKM M NPK>PK, and followed the sequence of M NPKM>NPK>PK in the late rice due to the climate effect. The P accumulation in the NPK treatment was mainly focused in early to middle growth period. The P absorbed by rice in the M and NPKM treatments rapidly increased and exceeded that
of NPK treatment after spike formation stage, and it accounted for 65% of total P absorbed in the NPKM treatment from spike formation to maturing in early rice. These characters provided the nutrient bases to maintain high photosynthetic rates and seed formation. K accumulative absorptions in the M and NPKM treatments were higher than that of NPK treatment due to the more K provided by mineralization in the late growth period of rice.