Li Y.,China Tobacco Mid South Agricultural Experimental Station |
Li Y.,Shaoyang Municipal Tobacco Company |
Deng X.,China Tobacco Mid South Agricultural Experimental Station |
Deng X.,Hunan Agricultural University |
And 5 more authors.
Acta Tabacaria Sinica | Year: 2015
Adequacy status of zinc, evolution tendency, pH value, and organic matters in 1790 soil samples were analyzed by methods of traditional statistics and geo-statistics to reveal distribution of available zinc content in tobacco-growing soil in Shaoyang. Results were as follows: (1) Available zinc content in tobacco-grown soil was abundant for tobacco cultivation, averaging 3.15 mg/kg with variation coefficient as 73.18%. About 92.57% of soil samples had available zinc content for suitable tobacco cultivation. (2) Available zinc content in tobacco-growing soil in Shaoyang county and Xinning county was significantly higher than in Longhui county. (3) Kriging interpolation map indicated that available zinc was patchily distributed and showed declining trend from the middle region to the northern and south-western regions. (4) Compared with 2002 soil survey, available zinc content showed an upward tendency with the passage of time. (5) There is extremely significant difference among content of available zinc in different pH groups, and content of available zinc was decreasing with the rise of pH. (6) There is extremely significant difference among content of available zinc in different organic matter groups, and content of available zinc was increasing with the rise of organic matter in soil. ©, 2015, State Tobacco Monopoly Bureau and China Tobacco Society. All right reserved.