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[目的]研究绿肥翻压还田对烟叶生产发育指标和产量产值的影响。[方法]2014年5~9月在陕西省汉中市洋县进行田间小区试验,采用绿肥翻压不减氮、绿肥翻压减氮相结合的方法,分别研究了黑麦草和紫花苕子两种绿肥类型、不同翻压量对烤烟生长发育和产量产值的影响。[结果]绿肥翻压处理在团棵期烟株的生长发育情况不如常规施肥处理,而旺长期和成熟期烟株的长势较常规处理好。黑麦草翻压处理在促进烟株长势,提高烟叶产量产值,提升上等烟比例及单叶重的效果优于紫花苕子。绿肥翻压不减氮处理较减氮处理更有利于提高烟株的农艺性状、产量、产值及经济学性状。[结论]常规施肥+黑麦草翻压30 000 kg/hm~2或常规施肥+黑麦草翻压52 500 kg/hm~2减氮26.25 kg/hm~2处理效果好,适合在汉中地区的地形和气候条件下种植。
[Objective] The research aimed to study the effect of green manure returning to the field on tobacco production and development index and output value. [Method] From May to September of 2014, field experiments were conducted in Yangxian County, Hanzhong, Shaanxi Province. Two methods were used to study the combination of ryegrass and prunus mume Effects of Different Green Manure Types and Different Turnover Volumes on Growth and Output of Flue - cured Tobacco. [Result] The growth and development of tobacco plants were not as good as that of conventional fertilization in green house overpressure treatment, while the growth of tobacco plants in both long-term and mature stages was better than that of conventional treatment. The effect of ryegrass overpressure on promoting the growth of tobacco plants, increasing the output value of tobacco leaf production, improving the proportion of superior tobacco and single leaf weight is better than that of P. purpurea. Nitrogen fertilizer than the nitrogen reduction treatment is more conducive to nitrogen treatment to improve tobacco plant agronomic traits, yield, output value and economic traits. [Conclusion] Conventional fertilization + ryegrass pressure 30 000 kg / hm ~ 2 or conventional fertilization + ryegrain pressure 52 500 kg / hm ~ 2 nitrogen reduction 26.25 kg / hm ~ 2 was effective and suitable for topography in Hanzhong area And climatic conditions.