Abstract: In order to determine the soil residual atrazine effect on growth and development of potato,this study chose three alleviators for processing the pesticide residue of soil.The results showed that atrazine residue had inhibitory effects on plant height,leaf color,potato growth and economic characters.Fenaminosulf+indole acetic acid had mitigation effects to a certain extent,but there was no significant difference in the growth characteristics of potato compared to soil with no herbicide spraying,in which plants grew and developed normally.The yield was slightly lower than the normal level,but higher than that of atrazine residue soil.The potato production rate was above 80%,indicating that it can reduce the effects of atrazine residue in practice.

Key words: Potato;Atrazine;Phytotoxicity