持续性秸秆还田配施化肥对油菜-水稻轮作周年氮磷径流损失的影响

靳玉婷,刘运峰,胡宏祥,穆静,高梦瑶,李先藩,薛中俊,龚静静

Effects of Continuous Straw Returning with Chemical Fertilizer on Annual Runoff Loss of Nitrogen and Phosphorus in Rice-Rape Rotation

JIN YuTing,LIU YunFeng,HU HongXiang,MU Jing,GAO MengYao,LI XianFan,XUE ZhongJun,GONG JingJing

表3 2017—2019年油菜-水稻作物养分累积量

Table 3 Nutrient accumulation of rape rice crops in 2017-2019

种植季度 Planting season	处理 Treatment	氮素累积量 Total N accumulation (kg·hm^-2)			磷素累积量 Total P accumulation (kg·hm^-2)
种植季度 Planting season	处理 Treatment	秸秆 Straw	籽粒 Grain	地上部 Aboveground	秸秆 Straw	籽粒 Grain	地上部Aboveground
2017 油菜 2017 Rape	CK	25.54±1.79c	43.46±1.79c	69.02±3.45b	2.02±0.48c	5.03±0.40b	6.59±0.70b
	F	52.93±2.76a	73.91±1.03a	102.21±25.04ab	5.59±0.10b	14.3±2.00a	19.89±2.11a
	SF	58.10±0.56a	77.45±6.63a	131.79±10.02a	7.69±0.81a	14.63±1.25a	22.32±0.44a
	SDF	43.51±1.10b	77.13±8.49a	120.63±7.39ab	5.93±0.03b	14.16±1.72a	20.08±1.75a
2017 水稻 2017 Rice	CK	46.22±0.23c	51.88±5.34b	98.1±5.42b	5.46±0.16b	20.41±1.34b	25.88±1.45c
	F	50.15±1.31ab	80.86±6.03a	131.02±6.85a	6.71±0.63a	29.28±2.33a	35.99±2.07ab
	SF	56.15±0.82a	82.06±2.32a	143.14±24.19a	6.89±0.21a	31.21±2.28a	38.1±2.09a
	SDF	52.40±1.40ab	84.38±2.74a	136.79±2.62a	6.58±0.05a	30.61±0.40ab	36.19±0.43a
2018 油菜 2018 Rape	CK	26.33±1.84c	44.82±1.85b	71.15±3.56b	2.06±0.49c	5.13±0.41b	6.73±0.72b
	F	54.57±2.85a	76.20±1.05a	105.37±25.81ab	5.70±0.11b	14.59±2.04a	20.29±2.15a
	SF	59.90±0.57a	79.85±6.83a	135.87±10.33a	7.84±0.83a	14.93±1.28a	22.77±0.45a
	SDF	44.85±1.13a	79.51±8.75a	124.37±7.62ab	6.05±0.03ab	14.45±1.76a	20.49±1.79a
2018 水稻 2018 Rice	CK	47.65±0.24c	53.49±5.51b	101.14±5.59c	5.57±0.16b	20.83±1.36b	26.4±1.48c
	F	53.83±1.35ab	82.49±6.22a	135.31±7.06b	6.85±0.64a	29.88±2.38a	36.73±2.11ab
	SF	56.85±0.84a	89.56±5.37a	146.41±5.07a	7.04±0.21a	31.84±2.33a	38.88±2.13a
	SDF	55.03±1.45a	88.71±2.82a	143.74±2.70ab	6.72±0.06ab	30.13±0.41ab	36.85±0.44ab
2019 油菜 2019 Rape	CK	26.86±1.88c	45.72±1.89b	72.58±3.63b	2.10±0.50c	5.38±0.43b	7.01±0.74c
	F	55.66±2.90a	77.72±1.08a	107.48±26.33ab	5.81±0.11b	15.32±2.15a	21.14±2.25ab
	SF	61.09±0.59a	81.44±6.97a	138.58±10.53a	8.00±0.85a	16.67±1.34a	23.67±0.49a
	SDF	45.75±1.15b	81.1±5.78a	126.85±7.77ab	6.17±0.03ab	15.17±1.85a	21.34±1.88ab
2019 水稻 2019 Rice	CK	50.03±0.25c	56.16±5.78b	106.2±5.87c	5.68±0.16b	21.25±1.39b	26.93±1.51c
	F	55.62±1.41ab	80.86±1.36a	136.48±2.12ab	6.99±0.65a	30.48±2.43a	37.46±2.16ab
	SF	60.74±0.88a	83.74±1.76a	144.48±2.15a	7.18±0.21a	32.48±2.38a	39.66±2.17a
	SDF	56.73±1.52ab	81.60±2.97a	138.33±2.84ab	6.85±0 06ab	30.65±0.42ab	37.5±0.45ab