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在豫西陕县主要烟区土壤上，应用土壤养分状况系统研究法测定土壤中１１种大、中、微量元素含量，结合土壤对营养元素的吸附研究和盆栽试验，判断土壤中存在的和潜在的养分限制因子，用以指导田间试验和推荐施肥。盆栽试验结果表明：土壤中氮、磷、钾、锌是主要的养分限制因子，另外，硫、铜、锰也需要补足。田间试验证明适宜的氮、磷、钾比例配施锰、锌对提高烟叶产量、改善烟叶品质均有重要作用。
Soil nutrient status was used to determine the contents of 11 kinds of macronutrients, middle and trace elements in soil of main tobacco growing areas in Shanxian, Henan Province. According to the adsorption of nutrients to soil and pot experiment, the potential and potential Nutrient limit factor to guide field trials and recommended fertilization. The results of pot experiment showed that nitrogen, phosphorus, potassium and zinc were the main limiting nutrients in soil. In addition, sulfur, copper and manganese also needed to be supplemented. Field experiments showed that suitable proportion of N, P and K combined with Mn and Zn played an important role in improving the yield of tobacco and improving the quality of tobacco.