Changes in N accumulation The interactive effects of water and CRU on total N accumulation and N accumulation in bract, grain, leaf sheath, stalk, and leaf at different stages after tasseling occurred at an extremely significant level (P < 0.01) (Tables 4 – 6 ).
A significance test showed that the effects of the interaction on NHI, NIE, ANUE, RE N , PNUE, and SNDR reached a highly significant level ( Table 7 ).
Under W2, the dry matter and N accumulation, as well as the yield, showed an increasing trend with an increase in N application, and the NIE and RE N of N3 showed no difference from N2.