Results in Fig.2 presented that the peak value of available P content appeared in 5 ~10 days in all
treatments of A, Ab, B, Bb and CK, in which available P content increased sharply in the first 10 days
after the transplant of Chinese cabbage, sharp decreased subsequently from 10 to 20 days, and then
decreased slowly from 20 to 110 days. Comparing the available P content in treatments of A and Ab (in