为了对优质烤烟生产提供参考,以云烟85为试材,研究了田间稻草覆盖、地膜覆盖、先地膜后稻草覆盖、无覆盖4种不同覆盖方式对土壤环境和烤烟生长及产量的影响.结果表明,先地膜后稻草覆盖栽培方式在生长前期能提高地温,促进烟株早生快长,显著降低早花率;成熟期能降低地温,保持土壤水分和根系活力,延迟烟株衰老过程,有利于烟株中、上部叶的伸展及充分成熟,可显著提高烤烟的产量和产值.%In order to provide references for high quality flue-cured tobacco production, experiments were carried out to study the effects of four mulching patterns (straw mulching, plastic film mulching, straw mulching after plastic film uncovered, mulching by nothing) on soil environments, yield and quality of flue-cured tobacco taking Yunyan 85(Nicotiana tabacum) as the material. The results showed that the straw mulching after plastic film uncovered pattern increased soil temperature during early period, promoted the plants to grow early and quickly and reduced the proportion of early budding plants significantly. At the maturing stage,it decreased soil temperature,maintained soil moisture and root vigor, and retarded tobacco plant aging, helped the middle and upper leaves to extend and mature fully, and increased yield and value significantly.
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