包膜控释肥对烤烟烟叶钾含量的影响  

Effects of coated controlled-release fertilizers on potassium content in tobacco leaves

作　　者：陈剑秋 万连步 解玉洪 陈旭[2] 陈宏坤 张民[3] 

机构地区：[1]山东金正大生态工程有限公司,临沂276700 [2]山东莒县烟草公司,莒县276500 [3]山东农业大学资源与环境学院,泰安271000

出　　处：《中国烟草学报》2008年第3期40-45,共6页Acta Tabacaria Sinica

基　　金：“十一五”国家科技支撑计划项目(2006BAD10B07);国家“948”项目(971053);农业部跨越计划项目(2001-跨8);农业科技成果转化项目(农计发[2004]32号)资助。

摘　　要：通过控释肥养分释放试验和小区试验,研究了控释肥对植烟土壤供钾特性及其对烤烟烟叶钾含量的影响,结果表明:供试控释肥养分释放特性符合烤烟生长对养分的需求特性,施用控释肥能够显著提高土壤速效钾及烟叶的钾含量,其中尤以包硫硫酸钾(SRPF)处理最显著,在3个施肥水平下,控释肥处理与普通施肥处理成熟期烟叶钾含量变幅分别为1.88%、1.62%、1.68%,控释肥处理对上部烘烤烟叶钾含量的最高增幅分别为1.01%、1.07%和1.15%,对中部烘烤烟叶钾含量的最高增幅分别为0.8%、0.85%和1.02%;施用控释肥可显著提高烤后烟叶的钾含量,可以节约1/3～2/3的肥料。Nutrient release experiments of controlled-release fertilizers（CRFs）and field experiments of tobacco were conducted to study nutrient release features of CRFs and effects on potassium content in tobacco leaves.Results showed that nutrient release of CRFs could meet the nutrient requirements of flue-cured tobacco and markedly increase soil available potassium and potassium content in leaves.Compared to that with general treatment,potassium content in tobacco leaves with CRFs treatment under three fertilization levels increased by 1.88 %,1.62%,and 1.68% respectively at maturing stage.The highest growth of potassium content in upper leaves were 1.01%,1.07%,and 1.15%,and in middle leaves were 0.8%,0.85%,and 1.02%,respectively.Application of CRFs not only increased potassium content in leaves but also saved 1/3 to 2/3 of all the fertilizers.

关 键 词：控释肥 养分释放 烟叶钾含量 

分 类 号：S572.062[农业科学—烟草工业]