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6 间作和磷水平对大豆根瘤酶活性的影响

Table 6 Effects of intercropping and P rates on enzyme activities of soybean organs

磷水平 P rates	种植模式 Planting patterns	酸性磷酸酶Acid phosphatase			植酸酶Phytase
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		21.19 a	7.74 a	28.89 a	37.17 a	10.00 a	52.84 a
P100		18.37 b	6.38 b	25.35 b	26.67 b	7.80 b	40.56 b
	MS	18.48 b	6.22 b	25.60 b	29.45 b	8.18 b	43.67 b
	IS	21.07 a	7.90 a	28.64 a	34.40 a	9.62 a	49.73 a
磷水平 P rates (P)		**	**	**	**	**	**
种植模式 Planting patterns (PP)		**	**	**	**	**	**
P×PP		ns	ns	ns	ns	ns	ns