摘要
采用野外调查、田间试验与室内分析相结合的方法,分析了湖南烟区烤烟锰含量与土壤有效锰含量的分布特点及相互关系,结果表明:(1)湖南烟叶锰含量适宜,平均为(146.66±134.03)mg.kg-1,变幅为15.00～740.80mg.kg-1,有95.72%的烟叶样本锰含量在22.96～550.03mg.kg-1范围内;符合巴西优质烤烟烟叶锰含量标准(58.16～156.00mg.kg-1)的样本占42.41%;不同等级烟叶锰含量的变化规律是X2F>B2F>C3F。(2)湖南植烟土壤有效锰含量丰富,平均为(27.83±22.39)mg.kg-1,变幅为1.30～174.30mg.kg-1;有17.36%的土壤样本在不同程度上缺锰(≤10.0mg.kg-1),有20.19%的土壤样本有效锰含量过高(>40.0mg.kg-1),满足优质烟叶生长发育正常的样本占62.45%;不同土壤类型有效锰含量的变化规律是黄壤土>黄灰土>黄泥田>红黄泥>鸭屎泥>沙泥田>青泥田。(3)烟叶锰含量与土壤有效锰含量呈极显著正相关(相关系数为0.481),257个样品的烟叶锰含量(^y)与土壤有效锰含量(x)建立的回归方程为^y=58.45+3.80x。(4)在土壤有效锰含量分组后,烟叶锰含量随着土壤有效锰含量的增加而增加,且烟叶锰含量在组间差异达到1%的极显著水平。
Distribution and relationship of manganese content in flue-cured tobacco leaf and available manganese content in soil in Hunan tobacco-growing areas were studied in field and laboratory experiments. Results indicated that： （1） The manganese content in flue-cured tobacco leaf was high in total in Hunan tobacco-growing areas, ranging from 15.00 to 740.80 mg＂ kg^-1 with a mean of （146.66 ± 134.03） mg· kg^-1; the manganese content of 95.72 % tobacco samples was in the range of 22.96 - 550.03 mg·kg^-1; the manganese content of42.41% tobacco samples was in line with the standard of high quality tobacco in Brazil （58.16 - 156.00 mg· kg^-1）; the order of the manganese content in flue-cured tobacco leaf among different grades was X2F 〉 B2F 〉 C3F. （2） Available manganese content in soil was high in Hunan tobacco-growing areas, ranging from 1.30to 174.30 mg. kg^-1 with a mean of （27.83 ± 22.39） mg·kg^-1; 17.36% samples were lack of manganese kg^- 1 ）, while 20.19% samples had exceeding manganese （ 〉 40.0 mg· kg^- 1 ）. Samples satisfying the growth （ ≤ 10.0mg· of high quality tobacco accounted for 62.45 %. The order of available manganese content in soil of different types was yellow soil 〉 yellow ash soil 〉 yellow mud field 〉 red yellow mud 〉 duck feces mud 〉 sand mud field 〉 blue mud field. （3） The manganese content in flue-cured tobacco leaf had significant positive correlation at the 0.01 level with available manganese content in soil with correlation coefficient of 0.481. Based on correlation analysis, regression equation, y = 58.45 ＋ 3.80x, was built between soil available manganese and flue-cured tobacco leaf manganese content in 257 samples. （4） After grouping soil available manganese content and with the increasing of soil available manganese content, the manganese content of different grades in flue-cured tobacco leaf increased, and significant differences at the 0.01 level among groups were found for the manganese content of different grades in flue-cured tobacco leaf.
出处
《中国烟草学报》
EI
CAS
CSCD
2007年第5期27-32,共6页
Acta Tabacaria Sinica
基金
国家烟草专卖局科技攻关项目(110200401017)
河南省杰出人才创新基金项目(0421001900)
烟草行业烟草栽培重点实验室主任基金项目(200603)
关键词
烤烟
锰素
关系分析
flue-cured tobacco leaves
manganese element
relationship analysis
