曲靖市植烟土壤有效钼含量状况及与土壤因素的关系分析  

Distribution of Soil Available Molybdenum and its Relationship with Soil Factors in the Tobacco Planting Areas of Qujing

作　　者：温心怡[1] 李良木 高云 卢秀萍[2] 解燕[3] 许自成[1] WEN Xin-Yi;LI Liang-mu;GAO Yun;LU Xiu-ping;XIE Yan;XU Zi-cheng(College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, China;Yunnan Academy of Tobacco Agricultural Sciences, Yuxi 653100, China;Qujing Tobacco Company of Yunnan Province, Qujing 655000, China)

机构地区：[1]河南农业大学烟草学院,河南郑州450002 [2]云南省烟草农业科学研究院,云南玉溪653100 [3]云南省烟草公司曲靖市公司,云南曲靖655000

出　　处：《土壤通报》2019年第3期691-697,共7页Chinese Journal of Soil Science

基　　金：国家烟草专卖局科技攻关项目（110200801036）;中国烟草总公司云南省公司科技攻关项目（06A05、2011YN03）资助

摘　　要：为研究云南曲靖烟区土壤有效钼含量状况及影响因素,采用田地实地调查取样与室内化验分析的方法,明确了区域内不同县(市)烟区土壤有效钼含量分布特征及土壤类型、土壤p H、不同金属氧化物等对土壤有效钼含量的影响趋势,结果表明:(1)曲靖中海拔烟区土壤有效钼含量范围为痕量~1.966 mg kg^-1,平均含量0.199 mg kg^-1,变异系数高达93.23%,土壤有效钼含量不足的样本所占比例达50.03%;地区间差异明显;(2)不同土壤类型有效钼含量表现为,红壤>水稻土>紫色土;(3)土壤有效钼含量与不同土壤类型pH差异显著,其中红壤、紫色土pH与土壤有效钼相关系数分别为0.283(P <0.01)和-0.191(P <0.05),水稻土与有效钼含量不相关;(4)土壤中不同金属氧化物与土壤有效钼含量相关性显著,铁、钙、锰的氧化物与土壤有效钼相关系数分别为-0.161**、-0.212**、0.233**。In order to investigate the content of soil available molybdenum (Mo) and its influencing factors, we analyzed the distribution of soil available Mo and the effects of soil types, pH value, and different metal oxides on its content in the tobacco planting areas of different counties of Qujing, Yunnan. The content of soil available Mo in the tobacco field at the middle altitude of Qujing was relatively suitable, ranged from trace amount to 1.966 mg kg^-1, with an average of 0.199 mg kg^-1 and a variation coefficient of 93.23%. About 50.03% soil samples were at insufficient level of soil available Mo. The content of soil available Mo decreased in the order of red soil > paddy soil > purple soil. The correlation coefficient between pH and soil available Mo was 0.283 (P < 0.01) and -0.191 (P < 0.05) in red soil and purple soil, respectively. They were not significantly related in paddy soil. The soil iron, calcium, manganese oxides showed significant correlations with soil available Mo, with a correlation coefficient of -0.161,-0.212 and 0.233, respectively.

关 键 词：曲靖烟区 有效钼 土壤类型 PH 金属氧化物 关系分析 

分 类 号：S147.2[农业科学—肥料学]