宝鸡烟区植烟土壤主要养分现状及施肥建议

摘要

对宝鸡烟叶主产区207个土壤样品的主要养分进行了分析,结果表明:有机质含量平均为13.68 g/kg,总体上处于适宜水平；全氮、碱解氮、全磷、全钾和速效钾总体上处于适宜或较高水平；速效磷相对缺乏,96.6％的植烟土壤缺磷；土壤养分含量之间均呈极显著正相关.此外,针对土壤养分含量情况,提出了一些相应的改良措施.%The author analyzed the main nutrients of 207 soil samples from major tobacco -planting counties in Baoji. The results indicated that the average organic matter content in the soil was 13.68 g/kg, which was at an appropriate level as a whole. The total nitrogen, available nitrogen, total phosphorus, total potassium and available potassium contents were generally at a suitable or higher level. The available phosphorus was relatively deficient, and 96. 6% of soil samples was of phosphorus deficiency. There were extremely significantly positive correlations among soil nutrient contents. Moreover, this article presented some corresponding improvement measures according to the status of soil fertility.