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[目的]为了筛选出适合湘南烟稻轮作区种植的绿肥品种。[方法]于晚稻收割后,种植不同品种绿肥,在烟苗移栽前进行翻压还田,探明绿肥鲜体还田对植烟土壤养分和烟叶产质量的影响。[结果]各绿肥品种以紫云英处理的鲜草产量最高。绿肥还田可以提高植烟土壤的养分含量,对烟叶的农艺性状、经济性状和内在品质有显著的影响,其中以紫云英还田对其综合影响最好。[结论]紫云英是湘南烟稻轮作区培肥改土的最佳绿肥品种。
[Objective] The research aimed to screen green manure suitable for the planting of tobacco plantations in southern Hunan. [Method] After the late rice was harvested, different types of green manure were planted, and the tobacco seedlings were repressurized and returned to the fields before transplanting. The effects of returning fresh green manure to soil fertility on tobacco soil nutrient and tobacco quality were also studied. [Result] The yield of fresh grass was the highest in all green manure cultivars. Returning green manure to soil can increase the nutrient content of tobacco planting soil, and have a significant effect on the agronomic traits, economic traits and intrinsic quality of tobacco leaves. [Conclusion] Astragalus sinicus was the best green manure variety for improving soil fertility in the south of Hunan province.