Table 3. Effects of fertilization practice and N rate on N content in wheat and N harvest index (NHI) of winter wheat.

Treatment		N content (kg ha−1)			NHI
Practice	N rate	Grain	Straw	total
SA	N 60	102.1c	23.7d	125.8c	0.81ab
	N 150	114.2bc	35.5bc	149.7b	0.76cd
	N 240	137.4a	51.0a	188.4a	0.73d
BA	N 60	104.6c	25.7cd	130.3c	0.80abc
	N 150	117.9b	32.2bcd	150.1b	0.79bc
	N 240	117.7b	41.3ab	159.0b	0.74d
CK		76.6d	14.9e	91.5d	0.84a

Different letters within a column represent significant differences (p < 0.05).

CK: N application 0 kg ha⁻¹; SA: conventional split application; BA: band application.