摘要
对浏阳烟区246个土壤样本的主要养分含量的调查及其之间关系的分析,结果表明:①浏阳烟区土壤有机质、全氮和有效钾含量丰富,平均分别为32.31 g/kg、1.99 g/kg和136.98 mg/kg;有效磷含量较高,平均为20.54 g/kg。②浏阳不同烟区的有机质和全氮含量高低顺序是:浏阳西>浏阳东>浏阳北;有效磷:浏阳东>浏阳西>浏阳北;有效钾:浏阳北>浏阳西>浏阳东。③不同土壤类型的有机质含量的高低顺序是:青泥田>黄泥田>红黄泥>河砂泥>沙泥田;全氮为青泥田、黄泥田>红黄泥>河砂泥>沙泥田;有效磷为红黄泥>黄泥田>青泥田>沙泥田>河砂泥;有效钾为红黄泥>黄泥田>河砂泥>青泥田>沙泥田。④土壤有机质与全氮、有效磷、有效钾含量均呈显著正相关,并建立了回归方程。
Relationship between mainly soil nutrient content in 246 soil samples from Hunan tobacco-growing areas was studied.The results indicated that：①The content of Soil organic matter and otal nitrogen in Liuyang tobacco-growing areas was abundance,with mean of 32.31 g/kg,1.99 g/kg and 136.98 mg/kg;Available phosphorus content was high with mean of 20.54 g/kg.②The ordering of soil organic matter and total nitrogen in difference tobacco-growing areas of Liuyang was： west Liuyang 〉East Liuyang 〉 North Liuyang;Available phosphorus： East Liuyang 〉west Liuyang 〉 North Liuyang;Available potassium： North Liuyang 〉 west Liuyang 〉 East Liuyang.③The ordering of organic matter content in different soil types was： blue mud field 〉 yellow mud field 〉 red yellow mud 〉 river sand mud 〉 sand mud field;Total nitrogen： blue mud field,yellow mud field 〉 red yellow mud 〉 river sand mud 〉 sand mud field;Available phosphorus： red yellow mud 〉 yellow mud field 〉 blue mud field 〉 sand mud field 〉 river sand mud;Available potassium：red yellow mud 〉 yellow mud field 〉 river sand mud 〉 blue mud field 〉 sand mud field.④The positive correlation coefficients of soil organic matter content and Total nitrogen,available phosphorus,available potassium and so on were significant at 0.05 level,and the regression equations were built.
基金
国家烟草专卖局重点科技攻关项目(110200401017)
河南省杰出人才创新基金项目(0421001900)
关键词
浏阳烟区
土壤有机质
全氮
有效磷
有效钾
liuyang tobacco-growing areas
soil organic matter
total nitrogen
available phosphorus
available potassium
作者简介
王林（1979-），男，河南固始人，助农，从事烟草营养与烟叶质量评价研究。E—mail：wanglin2008@gmail．com
