毕节烟区土壤pH值分布状况及与土壤养分的关系  

Distribution of Soil pH and Its Relationships with Soil Nutrients in Bijie Tobacco-growing Area

作　　者：符云鹏[1] 王小翠[1,3] 陈雪 李亚飞[1] 代昌明[2] 喻奇伟[2] 肖庆礼[2] 

机构地区：[1]河南农业大学烟草学院,烟草行业烟草栽培重点实验室,郑州450002 [2]贵州省毕节地区烟草公司,贵州毕节551700 [3]山西天脊煤化工集团股份有限公司农化中心,山西潞城047507

出　　处：《土壤》2013年第1期46-51,共6页Soils

基　　金：贵州省烟草公司科技攻关项目资助

摘　　要：分析了贵州省毕节市植烟土壤pH的分布状况及与土壤养分的关系。研究表明，毕节市植烟土壤pH平均值为6．39，变异系数为11．87％，pH值处于最适宜范围（5．5-6．5）的土壤样本数占总样本数的44．83％；各县（市）pH最适宜的土壤样本数占各地总样本的比例由高到低顺序为：金沙（67．44％）〉织金（64．29％）〉大方（54．84％）〉七星关（47．54％）〉黔西（36．59％）〉威宁（35．19％）〉赫章（24．24％）〉纳雍（15．38％）。不同土壤类型pH平均值高低顺序为：石灰土〉紫色土〉潮土〉黄壤，黄棕壤；毕节烟区土壤pH与全氮含量呈极显著正相关，与有效硼和有效锌的含量呈显著正相关，而与铵态氮、有效锰、有效铁的含量呈现极显著负相关。毕节市植烟土壤的有机质、全氮、有效硫、铜、锰、铁的含量丰富，但全磷、有效硼、水溶性氯的含量偏低或极低。Distribution of soil pH and its relationship with soil nutrient contents were analyzed in tobacco-growing areas of Bijie in Guizhou Province. The results showed that mean value of soil pH was 6.39 with a variation coefficient of 11.87%. About 44.83% of the soil samples was within pH of 5.5-6.5, most suitable for the cultivation of high quality tobacco. The percentage of soil samples with pH 5.5-6.5 in total samples was in the following order： Jinsha County （67.44%）〉Zhijin County （64.29%）〉 Dafang County （54.84%）〉Qixingguan District （47.54%）〉Qianxi County （36.59%）〉Weining County （35.19%）〉Hezhang County （24.24%）〉Nayong County （15.38%）. Soil pH of different soil types was in the following order： lime soil〉purple soil〉alluvial soil〉yellow soil〉yellow brown soil. There was a highly significant positive correlation between soil pH and total nitrogen, and a significantly positive correlation to available boron and zinc. However there were highly significant negative correlation between soil pH and ammonium nitrogen, available manganese and iron in Bijie Tobacco-growing areas. The contents of soil total nitrogen, available sulfur, available copper, available manganese and available iron were rich, but the contents of total phosphorus, available boron and water soluble chlorine were low or very low.

关 键 词：土壤 PH值 养分 相关分析 毕节烟区 

分 类 号：S153.4[农业科学—土壤学] S158[农业科学—农业基础科学]