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4 不同磷水平下玉米与大豆间作对大豆不同组织磷素吸收量的影响

Table 4 Effects of maize and soybean intercropping on P uptake of soybean different organs under different P rates (mg plant-1)

磷水平 P rates 种植模式 Planting patterns 叶 Leaves 茎 Stems 根 Roots 根瘤 Nodules 全株 Whole plant P50 MS 12.13±0.56 a 7.66±0.78 a 1.75±0.25 a 1.55±0.07 a 23.09±0.61 a IS 26.39±2.15 a 15.35±1.91 a 4.46±0.47 a 3.55±0.33 a 49.75±0.57 a P100 MS 23.74±2.18 a 14.41±0.94 a 5.39±0.67 a 2.17±0.24 a 45.71±3.27 a IS 37.16±1.54 a 22.36±1.79 a 9.32±0.15 a 4.60±0.22 a 73.45±0.43 a 施磷量 P rates P50 19.26 b 11.50 b 3.11 b 2.55 b 36.42 b P100 30.45 a 18.39 a 7.36 a 3.38 a 59.58 a 种植模式 Planting pattern MS 17.93 b 11.04 b 3.57 b 1.88 b 34.40 b IS 31.78 a 18.85 a 6.89 a 4.08 a 61.60 a 显著性Significance 磷水平 P rates (P) ** ** ** ** ** 种植模式 Planting patterns (PP) ** ** ** ** ** P×PP ns ns * ns ns