Effect Of Cadmium On The Growth Of Flowering Chinese Cabbage And Studies On Remediation Of Cadmium Contaminated Soil

Single factor contrast pot experiment was carried out to study on the growth of flowering Chinese cabbage and cadmium accumulation in plant under different concentrations cadmium stress. And then, "311-A" optimum compound design was used to study on remediation of cadmium contaminated soil with calcium carbonate, calcium magnesium phosphate and humic acid. The results were summarized as follows:1. Flowering Chinese cabbage had strong tolerance to cadmium stress, the low-concentration cadmium in soil had no significant effect on its growth, but the high-concentration cadmium in soil could inhibit its growth. Cadmium reduced the total amount of chlorophyll in leaves of flowering Chinese cabbage, inhibited the uptake of potassium, but it increased the content of nitrogen and phosphorus in leaves.2. Flowering Chinese cabbage had great capacity of absorbing and accumulating cadmium, its growth wasn't harmed by the additive cadmium under 0.6mg/kg concentration, but content of cadmium in flowering Chinese cabbage had been exceeded the Chinese healthy food...