不同覆膜方式对烤烟农艺性状的影响

Effects of Different Mulching Methods on Agronomic Characteristics of Flue-cured Tobacco

[目的]研究皖南地区揭膜与全程覆膜对烤烟农艺性状的影响。[方法]采用田间试验。试验品种为云烟87、云烟97、K326。试验地点为新田镇新田村、文昌镇福川村、寒亭镇通津村、养贤仁义村、泾县榔桥镇浙溪村,土壤类型分别为冲积沙壤土、冲积沙壤土、黄泥田、麻沙土、粉砂土。设栽后40 d揭膜培土和全程覆膜2个覆膜处理。[结果]覆膜方式对不同土壤类型烤烟农艺性状的影响存在差异,其中覆膜方式对新田烤烟茎围、有效叶数及养贤有效叶数的影响存在极显著差异;覆膜方式和品种互作效应对新田茎围、有效叶数、中部叶长、中部叶宽、上部叶长、寒亭上部叶长、上部叶宽、养贤中部叶长的影响存在极显著差异;覆膜方式对泾县、寒亭、文昌烤烟农艺性状的影响无显著差异。[结论]该研究可为确定烤烟大田生产行之有效的农事操作方式提供科学指导。

[Objective] The aim was to study the effects of removing plastic film and plastic film mulching in the whole process on agronomic characteristics flue-cured tobacco.[Method] The field test was chose.The test varieties was Yunyan 87,Yunyan 97 and K326,resp..The test points was Xintian village of Xintian Town,Fuchuan village of Wenchuang Town,Tongjin village of Hanting Town,Renyi village of Yangxian Town,Zhexi village of Langqiao Town,Jingxian,resp.,and their soil type was alluvial sandy loam,alluvial sandy loam,yellow paddy soil,silty sand,rough sandy soil,silty sand,resp..Two plastic film mulching treatments,removing plastic film mulching and earthing up after 40 days planting and plastic film mulching in the whole process,were designed,resp..[Result]The effects of mulching methods on agronomical characteristics of flue-cured tobacco in different soils were different.Thereinto,the difference in the effects of mulching methods on stem and the number of leaves at Xintian,the number of leaves at Yangxian had very significant,the same as the interaction effects of mulching methods and tobacco variety on stem,the number of leaves,length of waist leaves,width of waist leaves,length of upper leaves,width of upper leaves at Hanting,length of waist leaves at Yangxian.There were significant difference in the agronomic characteristics of flue-cured tobacco at Jingxian,Hanting and Wenchang.[Conclusion]The study provides a scientific guidance for confirming on the effective way of farming operations to field production of flue-cured tobacco.