低磷条件下玉米大豆间作对大豆根瘤生长、固氮功能的影响

覃潇敏, 潘浩男, 肖靖秀, 汤利, 郑毅

Effects of maize and soybean intercropping on nodule growth, nitrogen fixation of soybean under low phosphorus condition

QIN Xiao-Min, PAN Hao-Nan, XIAO Jing-Xiu, TANG Li, ZHENG Yi

表5 间作和磷水平对大豆氮磷浓度的影响

Table 5 Effects of intercropping and P rates on N and P concentrations of soybean organs

磷水平 P rates	种植模式 Planting patterns	氮素浓度N concentrations			磷素浓度P concentrations
磷水平 P rates	种植模式 Planting patterns	叶Leaf	根系Root	根瘤Nodule	叶Leaf	根系Root	根瘤Nodule
P50		34.58 b	11.86 b	98.07 b	3.36 b	1.78 b	12.63 a
P100		38.58 a	14.73 a	107.98 a	3.98 a	2.41 a	13.43 a
	MS	35.57 b	12.28 b	96.75 b	3.34 b	1.84 b	11.93 b
	IS	37.59 a	14.31 a	109.30 a	4.01 a	2.35 a	14.14 a
磷水平 P rates (P)		**	**	*	**	**	ns
种植模式 Planting patterns (PP)		*	*	*	**	**	**
P×PP		ns	ns	ns	ns	ns	ns