施钼对烤烟叶片硝酸还原酶活性、硝态氮含量及产质的影响  

Effects of molybdenum application on nitrate reductase activities,nitrate nitrogen content,yield and quality in flue-cured tobacco

作　　者：张纪利[1,3] 罗红香 杨梅林 李余湘 张西仲 赵胜利[1] 李章海[1] 

机构地区：[1]中国科学技术大学烟草与健康研究中心,合肥市230051 [2]贵州省黔南州烟草公司,都匀市558000 [3]安徽农业大学,合肥市230036

出　　处：《中国烟草学报》2011年第1期67-71,共5页Acta Tabacaria Sinica

基　　金：贵州省烟草公司重点科技项目“烤烟钼素营养作用机理及应用研究”,合同号:200914

摘　　要：在大田条件下,对K326、云烟85、CB-1、红大4个烤烟品种进行叶面喷施钼肥处理,研究钼对烟草叶片NR活性、NO3--N含量、烟叶产量和品质的影响。结果表明:在土壤有效钼0.03 mg/kg条件下,叶面喷施钼能明显提高不同品种烟草生育前期特别是旺长期叶片NR活性,降低NO3--N含量;施钼能提高烤后烟叶中上等烟的比例,明显降低杂色烟的比例,增加烟叶产量和产值,提高烟叶含钾量和含钼量。Four tobacco varieties,i.e.K326,Yunyan85,CB-1 and Hongda,were chosen to study effects of foliar application of molybdenum on the NR activity,NO-3-N content,and yield and quality of tobacco leaf in field experiment.Results showed that when soil available molybdenum content was 0.03 mg/kg,spraying molybdenum fertilizer can significantly enhance NR activity and reduce NO-3-N content during early growing stage,especially in vigorous growing stage.Molybdenum application can increase the percentage of fine and middle grade tobacco and significantly decrease the percentage of variegated tobacco,increase yield and output value,increase content of potassium and molybdenum in tobacco leaves.

关 键 词：钼 烤烟 NR活性 NO3-N含量 产质量 

分 类 号：S572.01[农业科学—烟草工业]