论文部分内容阅读
[目的]研究不同追肥时间对云烟97生长发育、产量和质量的影响。[方法]试验设4个处理,分别为不追肥及栽后20、30、40 d追肥。[结果]适当追肥可以提高烟叶产量和质量;栽后20、30 d追肥,烟叶各项农艺性状、植物学性状和经济性状均优于全部使用基肥和栽后40 d追肥处理。[结论]该研究可为确定云烟97合理的追肥时间提供理论依据。
[Objective] The research aimed to study the effects of different dressing time on the growth, yield and quality of Yunyan 97. [Method] There were 4 treatments in experiment, which were not top dressing and top dressing 20, 30, 40 d respectively. [Result] Appropriate topdressing could improve the yield and quality of tobacco leaf. The topdressing fertilizer, the agronomic traits, the botanical traits and the economic traits of tobacco leaf were better than those of all the basal fertilizer application and topdressing 40 days after transplanting. [Conclusion] This research could provide a theoretical basis for determining the reasonable top dressing time of Yunyan 97.