Abstract:
Recently, fertilizer application for tobacco planting by soil testing has been popularized in China. In order to attain a better understanding of soil nutrient distribution in Chifeng tobacco planting area, soil samples from 76 townships in 5 counties from 2008 to 2011 were collected and tested. The results showed that soil nutrient status in Chifeng tobacco planting areas could be divided into 5 types: 1) nutrient insufficient type, 2) moderate nitrogen contents with rich phosphorus type, 3) moderate nitrogen contents with low phosphorus contents type, 4) rich nutrients with high phosphorus content type, and 5) moderate nitrogen contents with high phosphorus contents type. Each type covered total tobacco planting area in Chifeng of 50%, 13.1%, 26.3%, 5.3% and 5.3%, respectively. 2/3 of the villages' soil with tobacco growing in Songshan District and Ningchen County belonged to 1) and 3) types, which lacked of phosphorus. 1/2 of the villages' soil with tobacco growing in Harqin Banner belonged to 4) and 5) types with high phosphorus contents. Tobacco growing soil in Aohan Banner and Ongniyud Banner belonged to 1) type with shortage of basic nutrients. These findings would be great benefit to the soil nutrient management for tobacco growing in Chifeng.