黔南荔波县水稻—根系土系统中硒含量影响因素分析

周文龙, 杨志忠, 张涛, 忙是材, 杨正坤

An analysis of factors influencing the selenium content in the rice-root soil system in Libo County, southern Guizhou Province

ZHOU Wen-Long, YANG Zhi-Zhong, ZHANG Tao, MANG Shi-Cai, YANG Zheng-Kun

表5 水稻籽实硒富集系数(KR)与根系土理化指标相关系数(n=30)

Table 5 Correlation coefficient between Se enrichment coefficient (KR) of rice seed and physicochemical indexes of root soil (n=30)

元素 r 元素 r 元素 r As -0.699** Pb -0.216 CaO 0.320 Cd -0.412* SOM. -0.447* MgO -0.508** Cr -0.546** pH -0.122 K2O -0.461* Cu -0.241 SiO2 0.547** Na2O -0.154 Hg -0.526** Fe2O3 -0.541** SeR -0.903** Ni -0.529** Al2O3 -0.479**