不同施硼方式对烤烟生长及经济性状的影响

Effects of Boron Application Mode on the Growth and Economic Characters of Flue-cured Tobacco

[目的]筛选彭水植烟区缺硼土壤最佳施用硼肥时期和施用量。[方法]采用田间小区对比试验的方法开展了不同硼肥施用时期和施用量对烤烟生长及经济性状影响的研究。[结果]在烤烟移栽期基施硼肥比移栽后30 d浇施效果要好;施硼砂量22.5~30.0 kg/hm^2处理比不施或施硼砂7.5、15.0 kg/hm^2效果要好。[结论]初步确定彭水植烟区土壤最佳施硼方式为30.0 kg/hm^2硼肥作基肥施用。

[Objective] To select the optimal boron application stage and application dosage in boron shortage soil in Pengshui Tobacco Planting Area.[Method] Field plot experiment was carried out to research the effects of application stage and dosage of boron fertilizer on the growth and economic characters of tobacco leaves.[Result] In the research area,boron application in transplanting stage had better effects on that in 30 days after transplanting.22.5-30.0 kg/hm2 boron application dosage had better effects on 0,7.5 and 15.0 kg/hm2 treatments.[Conclusion] It is preliminarily iudged that the optimal way of applying boron is 30.0 kg/hm2 as basal application in Pengshui Tobacco Planting Area.