江西烟叶畸形生长的原因及治理研究

摘要

从土壤中除草剂残留方面入手，对江西省部分烟区稻-烟轮作田出现烟叶畸形生长的药害原因进行了分析。通过高效液相色谱检测分析，从致烟叶畸形的土壤中检测出二氯喹啉酸成分；通过室内盆栽和田间模拟试验，确定了除草剂二氯喹啉酸土壤残留是造成江西烟叶药害的主要原因。因此，前茬水稻宜使用不含二氯喹啉酸成分的除草剂，以及使用生石灰对植烟土壤进行适当处理，以消除烟叶畸形生长现象。%The reasons for the abnormal growth of tobacco leaves in rice -tobacco rotation fields in some areas of Jiangxi prov-ince were analyzed from the aspect of herbicide residue in soil .The residue of herbicide Quinclorac was detected in the soil causing the abnormal growth of tobacco leaves by using high performance liquid chromatography .Through indoor pot experiment and field simulation test , it was ascertained that the residue of Quinclorac in rice -tobacco rotation soil was the main reason for the abnormal growth of tobacco leaves in Jiangxi .Therefore, in order to eliminate the abnormal growth of tobacco leaves , the farmers should apply the herbicides not containing Quinclorac in the production of previous crop rice , and properly apply quick lime to treat tobacco -planting soil .