大田前期不同栽培措施对烤烟早发的影响

Effect of Different Cultural Practices in Early Pariod of Flue-cured Tobacco (Nicotiana tabacnm L.) on the Growth Speed

对大田前期（栽后３０ｄ）烤烟烟株和地上部干重和叶面积进行了差异显著性分析。采用正交试验设计，设置烟苗素质，基肥施用深度，始期肥料溶液和水分供应４个因素；每因素各２水平。结果表明：大田前期的水分供应显著影响烤烟早发。在烤烟大田前期，尤其在干旱条件下，保持正常的水分供应有利于促进烟株早发。

A orthogonal design was used in the experiment. There were four factors-seedling quality,initial dressing depth,starter solution and water supply and two levels of each factor.It was concluded that the growath speed of early period of flue-cured tobacco was significantly affected the water supply by testing leaf area and dry matter weight per plant(30 days after transplanting),In the early period of flue cured tobacco growth,especially under the conditions of drought,the normal water supply was beneficial to rapid plant growth.