摘要
为了解河南烟区土壤和灌溉水的氯含量状况 ,2 0 0 1年采集了河南省植烟土壤样品 2 116个和灌溉水样品 76 8个 ,进行了氯含量的分析测定。结果表明 :河南烟区土壤与灌溉水氯含量的平均值分别为 30 .13mg/kg和 31.98mg/kg ,与烟草生长所需的土壤和灌溉水氯含量临界值相近或略高 ,但不同地区间差异较大。河南部分烟叶中氯含量也偏高 ,应采取综合农艺措施来降低烟叶中的氯含量。
In order to find out the chlorine contents of soil and irrigation water,2116 soil samples and 768 irrigation water samples collected from Henan tobacco growing areas were determined. The results showed that the average contents of chlorine in soil and irrigation water were 30.13mg/kg and 31.98mg/kg, respectively, and were close to or slightly higher than critical level for tobacco growing requiremnt. There were considerable discrepancies between different areas. The chlorine contents of some Henan tobacco leaves were higher than normal,and should be reduced by comprehensive agricultural practices.
出处
《烟草科技》
EI
CAS
2003年第8期39-41,共3页
Tobacco Science & Technology
