Scientia Agricultura Sinica

Figure/Table detail

Effects of Different Slow/Controlled Release Nitrogen Fertilizers on Spring Maize Nitrogen Uptake and Utilization, Soil Inorganic Nitrogen and Nitrogen Balance

YunPeng HOU, Qian LI, LiLi KONG, YuBo QIN, Meng WANG, Lei YU, LiChun WANG, CaiXia YIN

Scientia Agricultura Sinica, 2018, 51(20): 3928-3940. DOI: 10.3864/j.issn.0578-1752.2018.20.011

年份 Year	处理 Treatment	产量 Yield (kg·hm^-2)	穗粒数 Grains per ear	百粒重 100-grain weight (g)	收获指数 Harvest index (%)
2014	CK	8527d	400.7c	31.9c	45.1c
	CU	9819c	450.6b	34.4b	48.0b
	SCU	11033b	500.9a	36.2a	49.9ab
	CRF	11743a	519.1a	36.8a	51.8a
	SU	11284ab	510.2a	36.3a	50.6ab
	UF	10756b	498.8a	35.9a	49.5ab
2015	CK	8037d	393.6c	31.c	45.3c
	CU	10247c	473.3b	35.0b	48.7b
	SCU	11502ab	515.9a	36.8a	49.9ab
	CRF	12175a	522.3a	37.6a	51.7a
	SU	11847a	519.3a	37.5a	50.3ab
	UF	11308b	510.7a	36.6a	49.6ab
方差分析 ANOVA
年份 Year (Y)		**	*	*	NS
施肥处理 Fertilization (F)		**	**	**	**
年份×施肥处理 Y×F		*	NS	NS	NS

Table 1 The maize yields and its components under different N fertilizer treatments

Other figure/table from this article

Table 2 The dynamic changes of N accumulation and utilization under different N fertilizer treatments
Fig. 1 The dynamic changes of inorganic N contents in 0-30cm soil under different nitrogen fertilization treatments during the growing season of spring maize in 2014 (A) and 2015 (B)
The different small letters indicate significant differences between treatments at P<0.05
Table 3 The correlations of maize yield, the total nitrogen accumulations, nitrogen utilization efficiency and inorganic N contents in soil during different growth periods
Fig. 2 The dynamic changes of inorganic N contents in 0-180 cm soil under different nitrogen fertilization treatments after harvest of spring maize in 2014 (A) and 2015 (B)
Table 4 The apparent balance of 0-90 cm soil profile nitrogen of different N fertilizer treatments (kg·hm^-2)