ISSN 2756-3650
International Journal of Animal Breeding and Genetics Vol. 4 (10), pp. 001-006, October, 2015. © International Scholars Journals
Full Length Research Paper
Relationship between the calcium content in soil and the calcium content of flue-cured tobacco in Enshi tobacco-growing area
Shao Huifang and Xu Zicheng*
College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, People’s Republic of China.
Accepted 21 February, 2015
Abstract
Distribution of the calcium content in soil and the calcium content of flue-cured tobacco in Enshi tobacco-growing area of Hubei Province and their relationships were analyzed. The results indicated that: (1) the average content in soil of total and exchangeable calcium was 2124.60 and 1091.44 mg/kg in Enshi tobacco-growing area. The calcium content showed the trends of high altitude > middle altitude >lower altitude among different altitudes, and the trends of 0 to 20 > 20 to 40 > 40 to 60 cm in different soil depths. (2) Significant differences of the calcium content of flue-cured tobacco were found among the different cultivars and grades, indicating the trends of Yunyan87 >Yunyan85 > K326, the trends of X2F > C3F > B2F, and the trends of high altitude > middle altitude > lower altitude. (3) The calcium content in soil and the calcium content of flue-cured tobacco were both increased with the altitude height going up. When the exchangeable calcium content in soil was grouped and increasing, the calcium content of flue-cured tobacco also increased. Linear regression equation was established between the calcium content of flue-cured tobacco and the exchangeable calcium content in soil with high significant correlation coefficient.
Key words: Calcium content in soil, calcium content of flue-cured tobacco, altitude height, relationship analysis, Enshi tobacco-growing area.