四川省植烟土壤有效态微量元素含量评价及施肥探讨

Evaluation on the Microelement Content in Sichuan Tobacco Soil and Fertilizing Suggestion

为查明四川烟区土壤微量元素养分含量状况及分布规律,采集了植烟土壤样品298个,对植烟土壤中有效态微量元素的含量进行了测试和评价。结果表明:四川烟区土壤有效铜、铁、锰含量极其丰富,铜含量较丰富,大面积缺锌,有效硼极其缺乏。建议全区范围补硼,川东北烟区补锌,对于铁、锰浓度高,pH低于5 5的土壤施用石灰。

In order to investigate the contents and distribution of microelement in the soil of Sichuan tobacco growing areas, the contents of effective microelement in 298 soil samples were tested and evaluated. The results showed that the contents of effective Fe and Mn were very plentiful, effective Cu was rich, effective B was extremely deficient, and most of Sichuan soil was lack in effective Zn. The recommended fertilizing suggestion was that B should be applied in all tobacco growing areas of Sichuan Province, Zn should be applied in the north-east areas, and lime should be applied in the soil that was rich in Fe and Mn and pH value was lower than 5.5.