论文部分内容阅读
本文研究了在不同比例炭黑粉尘的土壤条件下,白菜中重金属、糖分、Vc、HO_2~-、粗蛋白、氨基酸的变化规律;探讨了不同密度粉煤炭(降尘)对大白菜光合速率的影响。
In this paper, the changes of heavy metals, sugar, Vc, HO_2 ~ -, crude protein, amino acids in cabbage under different soil carbon black dust concentrations were studied. The effects of coal densities with different densities on the photosynthetic rate of Chinese cabbage .