"前膜后草"覆蓋栽培對烤煙生長及產(chǎn)質(zhì)量的影響

Effects of the “Straw Mulching after Plastic Film Uncovered” Technique on Growth, Yield, and Quality of Flue-cured Tobacco

摘要: 研究了“前膜后草”覆蓋栽培對烤煙生長及產(chǎn)質(zhì)量的影響,。結(jié)果表明,，“前膜后草”覆蓋栽培方式在煙株生長前期能提高地溫，促進(jìn)煙株的早生快長,，減少早花率,；成熟期能保持土壤水分，降低地溫,，保持煙株的根系活力,，提高上部葉的田間耐熟性；同時(shí)明顯提高烤煙的產(chǎn)量,、產(chǎn)值,，對提高煙葉還原糖、降低煙堿含量也有一定的效果,。

Abstract: The effects of different mulch methods on growth, yield, and quality of flue-cured tobacco were studied. The results showed that the “straw mulching after film uncovered” technique improved soil temperatures during the early field period, promoted tobacco plants to grow early and quickly and reduced the proportion of early budding plants. At the flue-cured tobacco maturing stage, it decreased soil temperatures, maintained soil moisture and root vigor, and lengthen mature time of top leaves. At the same time, it remarkably increased yield and value, increased reducing sugar contents and decreased nicotine contents of tobacco leaves.