不同类型富硒土壤的生物有效硒特征

姚凌阳, 谢淑云, 鲍征宇, 马明, 万能

Characteristics of bioavailable selenium in different types of selenium-rich soils

YAO Ling-Yang, XIE Shu-Yun, BAO Zheng-Yu, MA Ming, WAN Neng

表2 不同化学浸提剂提取土壤有效硒含量

Table 2 Different chemical extractants extract the available selenium content in soil

编号 玉米总Se 土壤总Se 有效硒/10-6 10-6 10-6 KH2PO4 NaHCO3 NaOH KH2PO4- K2HPO4 NH4F-HCl EDTA AB-DTPA K2SO4 SOL-Se+EX-Se SOL-Se 1 0.122 0.70 17.31 49.12 188.80 42.82 14.38 24.49 81.67 54.43 107.61 42.63 2 0.14 0.48 18.34 57.19 140.10 38.53 10.83 19.24 78.18 55.59 62.69 16.52 3 0.039 0.37 9.87 32.01 132.40 26.70 8.90 14.51 70.10 58.64 52.94 14.38 4 0.281 0.70 24.70 50.98 89.50 34.52 15.52 14.93 71.49 73.73 82.23 24.13 5 0.464 0.75 29.33 49.88 100.60 36.56 18.00 15.47 69.14 80.13 89.92 29.78 6 0.318 0.93 33.59 56.03 104.70 47.14 23.17 19.96 84.96 73.64 114.70 39.89 7 0.493 19.54 100.36 85.43 135.45 99.98 40.75 19.91 165.42 117.07 434.44 41.53 8 16.08 14.90 1049.00 1033.00 1064.00 1091.00 171.30 49.48 458.31 417.01 1248.00 223.18 9 3.15 12.68 214.35 212.17 299.60 246.33 43.69 26.25 310.89 123.63 389.67 149.14 10 11.49 9.70 435.83 497.70 627.62 492.00 76.02 67.96 572.23 160.10 1086.77 126.37 11 6.97 5.64 264.16 328.07 387.77 328.20 67.97 67.96 379.85 109.91 531.53 103.38 12 2.72 4.88 221.87 288.12 630.25 287.88 62.06 63.96 356.21 115.98 458.10 93.51 13 18.42 10.53 255.74 327.74 428.26 304.06 50.00 51.96 401.76 109.89 316.84 115.94 14 16.88 12.60 241.95 285.77 208.00 271.78 38.01 44.00 182.07 27.99 431.00 110.00 15 16.63 11.94 226.00 292.00 401.76 292.00 10.58 13.99 367.78 53.98 322.97 119.99 16 12.03 16.85 181.96 236.05 288.00 217.96 66.00 79.92 336.07 89.95 303.97 101.99 17 11.49 10.48 166.10 219.96 321.81 210.00 65.93 78.02 340.14 82.02 450.04 108.01