Analysis on the Soil Nutrition and the Strategy on the Planting in Yunnan Province

Soil samples were taken in 12 regions 91 counties of Yunnan province with random design.the results showed that the high soil organic matters and available nitrogen were found,25.48% of the soil organic matters is over 4% and more than 78% the soil available nitrogen is over(100mg/kg).Most soil pH is in an appropriate amount for the tobacco,only few(16.69%) has the low or high value.Soil available P has the same results,but the C.V % is so greater,high or low value is found at some areas.For the soil available K,the result showed that soil available K is rich.For the soil nutrients of different areas,in general,nutrients of Si Mao area is less than other areas,and it means that fertilizer application is easy controlled.On the contrary the long history planting areas such as Kunming,Yuxi,Dali and Chuxiong have rich soil nutrients and fertilizer application should be controlled.New planting area Lijiang also has the high soil nutrients and balance fertilizer application is commended.