安徽省冬油菜的施肥现状及肥料利用率

卜容燕,程燚,王慧,韩上,胡荣根,余忠,李敏,程文龙,孙义祥,王家宝,武际

Investigation of Present Fertilization Status and Fertilizer Utilization Rate on Rapeseed in Anhui Province

BU RongYan,CHENG Yi,WANG Hui,HAN Shang,HU RongGen,YU Zhong,LI Min,CHENG WenLong,SUN YiXiang,WANG JiaBao,WU Ji

表4 2017—2018年度不同产区冬油菜化肥分次施用调查

Table 4 Proportions of winter rapeseed applying chemical fertilizer in different growing season during 2017-2018

地点 Site	指标 Index	氮肥 N			钾肥 K₂O
地点 Site	指标 Index	比例^1） Proportion (%)	基肥 Base fertilizer	追肥 Additional fertilizer	比例^1） Proportion (%)	基肥 Base fertilizer	追肥 Additional fertilizer
沿江 Yanjiang (166)	变幅Rang (kg·hm^-2)		23-155	23-183		42-135	22-75
	均值Mean (kg·hm^-2)		74	91		60	15
	变异系数CV (%)		25.6	32.6		30.9	45.2
		93.2		93.2	31.4
江淮 Jianghuai (50)	变幅Rang (kg·hm^-2)		54-209	35-161		0-112
	均值Mean (kg·hm^-2)		88	98		61
	变异系数CV (%)		42	43.1		32.5
		100.0		100.0	0
皖南 Wannan (184)	变幅Rang (kg·hm^-2)		3-185	1-276		29-246	7-308
	均值Mean (kg·hm^-2)		66	98		89	53
	变异系数CV (%)		29.1	39.7		37	54.6
		100.0		100.0	19.7