熟芝麻在烤烟生长期间田间养分矿化特征研究  

Study on the Characteristics of Nutrient Mineralization of Fried Sesame during the Growth of Flue-cured Tobacco

作　　者：李举旭 张帅涛 关卫东 李洪臣[2] 王志军 LI Ju-xu;ZHANG Shuai-tao;GUAN Wei-dong(College of Tobacco Sciences,Henan Agricultural University,Zhengzhou,Henan 450046;Sanmenxia Company of Henan Tobacco Corporation,Sanmenxia,Henan 472000)

机构地区：[1]河南农业大学烟草学院,河南郑州450046 [2]河南省烟草公司三门峡市公司,河南三门峡472000

出　　处：《安徽农业科学》2023年第23期128-131,共4页Journal of Anhui Agricultural Sciences

基　　金：河南省烟草公司三门峡市公司科技项目“三门峡烟区品牌导向型烤烟品种筛选与应用研究”(202041120020053);中国烟草总公司河南省公司科技项目“提高豫西烤烟上部叶质量的关键技术体系构建与应用”(2020410000270020)。

摘　　要：研究熟芝麻在植烟土壤中的养分矿化特征,为烤烟生产中精准施用熟芝麻提供参考。采用尼龙网袋田间原位培养的方法对熟芝麻的有机碳、氮矿化规律及其对植烟土壤速效养分、腐殖酸含量的影响进行研究。结果表明,熟芝麻掩埋后,土壤有机碳和有机氮前期(掩埋50 d内)矿化快,后期矿化慢,在掩埋70 d内分别可矿化掩埋期间总量的94.13%和88.07%;添加熟芝麻可有效地提高土壤中速效磷、速效钾、铵态氮和硝态氮的含量;熟芝麻在掩埋20 d内有效地提高土壤中的腐殖酸含量。在烟株移栽时添加熟芝麻,其碳氮矿化规律以及土壤养分的变化可以较好地满足烤烟的生长需求。To provide a reference for the precise application of fried sesame in flue-cured tobacco production,this paper studied the characteristics of nutrient mineralization of fried sesame in tobacco planting soil.The organic carbon and nitrogen mineralization release of fried sesame in tobacco planting soil was studied by the method of nylon net bag.In addition,the effects on available nutrients and humus acid were also studied.The soil organic carbon and organic nitrogen mineralized rapidly in the early stage(in 50 d after being buried)and slowly in the late stage after fried sesame was buried.The organic carbon and organic nitrogen mineralized 94.13%and 88.07%of the total amount during fried sesame buried for 70 days,respectively.The content of available phosphorus,potassium,ammonia-nitrogen,and nitrate nitrogen in soil could be increased by adding fried sesame.Furthermore,humus acid’s content in the soil could also be increased effectively in 20 days after fried sesame is buried.The carbon and nitrogen mineralization and soil nutrient changes of applying fried sesame when flue-cured tobacco transplanting can better meet the demand for flue-cured tobacco.

关 键 词：熟芝麻 烤烟 矿化规律 腐殖酸 

分 类 号：S572[农业科学—烟草工业]