调理剂及农艺措施对污染稻田中水稻吸收镉的影响

彭鸥,刘玉玲,铁柏清,叶长城,张淼,李园星露,周俊驰,许蒙,张燕,龙涌

Effects of Conditioning Agents and Agronomic Measures on Cadmium Uptake by Rice in Polluted Rice Fields

Ou PENG,YuLing LIU,BaiQing TIE,ChangCheng YE,Miao ZHANG,YuanXingLu LI,JunChi ZHOU,Meng XU,Yan ZHANG,Yong LONG

表2 稻田土壤有效态Cd含量与水稻各部位Cd含量相关性

Table 2 Correlation between available Cd content in paddy soil and Cd content in various parts of rice

品种Variety 部位Organ 拟合公式Fitting formula 拟合度R-squared 相关系数Correlation coefficient 中嘉早17 Zhongjiazao 17 根系 Root y = 12.1070x - 2.9678 R2 = 0.8457 r=0.551* 茎鞘 Stem-sheath y = 3.1702x + 0.1614 R2 = 0.4864 r=0.339 叶片 Leaf y = 0.9363x - 0.3450 R2 = 0.5852 r=0.590* 稻壳 Rice husk y = 0.8912x - 0.4040 R2 = 0.7274 r=0.853** 糙米 Brown rice y = 0.7232x - 0.3660 R2 = 0.7063 r=0.840** 泰优390 Taiyou 390 根系 Root y = 8.5009x + 2.6206 R2 = 0.2303 r=0.480* 茎鞘 Stem-sheath y = 3.9923x + 2.1199 R2 = 0.2296 r=0.479* 叶片 Leaf y = 0.4759x + 0.7394 R2 = 0.0478 r=0.219 稻壳 Rice husk y = 0.9209x - 0.4151 R2 = 0.4199 r=0.648** 糙米 Brown rice y = 1.1700x - 0.7611 R2 = 0.4564 r=0.676**