To confirm the effects of soil copper and sulfur pollution on growth of young apple trees,the young apple trees which were planted in the flood land filled by pyrite iron sand were used as materials to study the effects of soil copper and sulfur contents on growth of young apple trees.The results showed that:The growth of apple trees would be inhibited when the soil copper content was more than 46.8 mg/kg and the soil available sulfur was more than 368.7 mg/kg.The apple trees would be poisoned or death when...