不同覆盖处理对旱作烤烟生育和产质量效应之研究

采用比较试验研究了地膜加秸秆覆盖、地膜覆盖及秸秆覆盖处理对旱作烤烟土壤环境、生长发育及产质量的调控效应.结果表明,地膜加秸秆覆盖能明显改善旱作烤烟土壤环境,促进烤烟生长发育,烟叶产量比对照增加30.07%,比单一地膜覆盖增加6.3%,比单一秸秆覆盖增加6.9%;上中等烟叶比率比对照增加20.03%,比单一地膜覆益增加5.1%,比单一秸秆覆盖增加8.6%.

The Effects of Different Mulching Treatments upon Growth, Development, Yields and Quality of Rainfed Flue-cured Tobacco

The adjusting and controlling effects of plastic mulching,plastic-straw mulching and straw mulching upon soil environment;growth,development,yield and quality of rainfed fluecured tobacco were studied in this paper.Results showed that plastic-straw mulching treatment obviously improved soil environment and promoted the growth and development of rainfed fluecured tobacco.As compared with the control,plastic mulching and straw-mulching treatment economic yields of plastic-straw mulching can increase by 30.7%,6.3% and 6.9%, rates of first and secondary class can incxease by 20.0%,5.1% and 8.6% respectively.Accordingly,the plasticstraw mulching is an important technique for rainfed flue-cured tobacco production.