Results showed that total S uptake by plant and sulfur concentration in plant shoot were gradually decrease from first harvest to forth harvest, which were related to soil MCP extractable S.

• 结果表明 ,植物吸硫总量和植株含硫量从第一茬至第四茬逐渐下降 ,这与土壤MCP-S含量下降有关 ,而与土壤有机硫各组分的变化无关。