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4 水稻籽实硒与根系土理化指标相关系数(n=30)

Table 4 Correlation coefficient between Se content in rice seed and index in root soil (n=30)

指标 r 指标 r 指标 r SeS 0.167* Ni -0.057 Al2O3 -0.374** As 0.279 Pb -0.011 CaO -0.168 Cd 0.068 有机质 -0.503** MgO -0.261 Cr 0.099 pH -0.146 K2O -0.178 Cu -0.082 SiO2 0.334 Na2O 0.086 Hg -0.024 Fe2O3 -0.127