摘要
添加铜对砖红壤性水稻土微生物群体数量影响的盆栽试验研究表明,添加铜浓度与土壤微生物数量之间的关系未能呈现良好的相关性,微生物的变化晚季比早季稳定,建议以晚季微生物受抑制的添加浓度125mg kg^(-1)做为土壤微生物的毒性临界浓度。
This paper reports the effect of added copper on microbial population in lateritic rice soil. The pot experiment shows that the concentrations of added copper do not have good correlativity with soil microbial population, and the change of microbe is more stable in the late season than that in the early season. It is suggested that the added concentration of 125mg kg^(-1) which the microbe in the late season is inhibited be the poisonous critical concentration for soil microbe.
关键词
铜
砖红壤
水稻土
土壤微生物
Copper, Lateritic rice soil, Soil microbe, Critical concentration.
