Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (9): 165-169.doi: 10.11924/j.issn.1000-6850.2013-1762

Special Issue: 烟草种植与生产

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Distribution of Total Potassium Contents of Tobacco-growing Soil in Xiangxi Autonomous Prefecture

  

  • Received:2013-06-26 Revised:2013-07-18 Online:2014-03-25 Published:2014-03-25

Abstract: The distribution characteristics of toatal K contents in tobacco growing soils were analyzed by collected 488 soil samples in Xiangxi. The results were as follows:(1) total K contents in the tobacco soil is generally on the slightly low side for tobacco cultivation with a mean of 1.535%, amplitude of 0.569%~2.935% and variation coefficient of27.83%. About 34.09% of the soil samples of total K contents is suitable for tobacco cultivation. (2)The average content of total K in red-ash soil was signally higher than the other soil types.(3) The average content of total K in the soil above 1000m was relatively higher than the other altitude.(4) IDW interpolation map indicated that the spatial distributions of total K content were patchness distribution and have a trend which high areas in north and south and low areas in middle.