烟草轻简高效栽培技术研究——Ⅲ. M 型宽垄双行种植模式对烟草生长及产质量的影响

Study on Simplified and Labor Saving Cultivation of Tobacco-Ⅲ. Effects of M-regional Crop Rotation on Growth, Yield and Quality of Tobacco

摘要: 为降低劳动强度，提高种烟的经济效益，采用田间小区试验的方法，研究了M 型宽垄双行种植模式的应用效果。结果表明，与单垄单行种植模式相比，打顶期M 型宽垄双行种植模式中部叶面积增大4.9%，上部叶面积增大26.19%，通过地膜半幅覆盖提高人工覆膜效率，可节省地膜22.2%，而且便于机械化操作，有利于实现农机与农艺的有机结合；该种植模式平均增产149.5 kg/hm²，节本增效5 426.57 元/hm²，而且能提高烤后烟叶的还原糖、总糖、钾含量，使烟叶化学成分更加协调，是一种新的种植模式，推广应用前景广阔。

Abstract: Reducing labor intensity and increasing economic benefit of tobacco-growing were the purpose of this study. A field experiment was conducted to study application effects of M-wide double ridge on tobacco production. The results showed that the upper leaf area improved by 26.19%, while the middle leaf area improved by 4.99% in topping stage. M-ridge faciliated mechanical operation and improved the efficiency of mulching, and saved plastic film by 22.2%. The yield increased by 149.5 kg/hm2 and saved 5 426.57 yuan/ha. This cropping pattern caused reducing sugar, total sugar, potassium and made chemical composition more harmonious. It was a new cropping pattern, with broad prospects of popularization and application.