The effects of N and P fertilization on Larix olgensis and L. kaempferi were studied.
N and combined N and P fertilization promoted growth in the two Larix species.
P fertilization increased growth of L. olgensis but decreased that of L. kaempferi.
The N and P balance is more important in L. kaempferi than in L. olgensis.
L. kaempferi partitions more biomass to aboveground parts than does L. olgensis.