锌肥对烤烟生长发育的影响  

Study on Effects of Zinc Fertilizer Application of Growth of Tobacco

作　　者：刘国顺[1,2,3,4] 王文亮[1,2,3,4] 郝伟宏[1,2,3,4] 刘迎昌 刘海 杨敏 武明安 

机构地区：[1]河南农业大学 [2]郏县烟草公司 [3]遂平县烟草公司 [4]南召县种子公司

出　　处：《河南农业大学学报》1998年第S1期93-96,共4页Journal of Henan Agricultural University

基　　金：国家烟草专卖局资助

摘　　要：烟草施用锌肥，其生物学及经济性状均有明显改善，但从土施和根外喷施２种方法看，根外喷施明显优于土壤施锌。根外喷施锌肥与对照相比，圆顶期叶数增加０３片株－１，中部叶叶面积增加９４４ｃｍ２，收获时单叶重增加０４１ｇ，根外喷施锌肥尤其显著降低花叶病发病率，与对照相比，发病率从５６４％下降到１８２％；由于锌肥促进了烟草生长发育，显著抑制了花叶病发生，与对照相比，均价由６３８元·ｋｇ－１，增加到６６８元·ｋｇ－１，上等烟比例提高６２５％，差异极显著，产值由１５５１４５元·ｈｍ－２，增加到１６６９６５元·ｈｍ－２。Applying zinc fertilizer could improve tobacc′s biological and economical characteristics.It was better to spray zinc liquid on tobacco leaves than to fertilize solid zinc into the soil.Compared with CK,the nummber of leaves in phase increased by 0.3 pieces per plant in the treatment,and the leaf area increased by 94.4cm 2 on the middle parts of the plant.Therefore,there was a leaf weight increment of 0.41g when it was harvested.Meanwhile,the morbidity of mosaic disease decreased from 5.64% to 1.8%,compared with CK.Because zinc fertilizer promoted the growth of the tobacco plant,the average price per kilorgam was raised from 6.38 to 6.68 yuan RMB,and the ratio of quality tobacco leaves to common ones increased by 6.35 in terms of percentage and the difference was extremely significant.As a result,the value of output per hectare increased from 15514.5 to 16696.5 yuan RMB per hectare,or by 7.62% .

关 键 词：烟草 锌肥 发病率 均价 产值 

分 类 号：S572.062[农业科学—烟草工业]