摘要
【目的】为探明打顶后喷施矿质元素对烤烟生长发育及产量品质的影响。【方法】以云烟99为材料,采用大田试验,开展了喷施不同矿质元素对比试验研究。【结果】与CK(喷施清水)相比,打顶后喷施硫酸锌或硅酸钠增加了叶片叶绿素含量,喷施硫酸锌有助于成熟期上部叶养分积累,喷施硫酸锌或硼砂即能协调烤后烟叶化学成分,同时提升了经济性状各项指标。【结论】综合分析,在洛南县气候生态条件下,打顶后每隔7 d喷施1次硫酸锌(1.5 g·L^(-1)),共喷施3次,可改善上部烟叶成熟期氮钾营养,有利于碳水化合物累积,烤后烟叶化学成分协调,从而提高烟叶产量和品质。
[ Objective ] The paper aims to study the influence on growth, yield and quality of flue-cured tobacco after spraying mineral ele-ments. [ Method ] The field experiment, using Yunyan 99 cultivar as materials, was conducted to carriy out contrast study of spraying differentmineral element. [ Result] The results showed that compared with CK （spraying water）, spraying zinc sulfate or sodium silicate increasedleaf chlorophyll content after topping, spraying zinc sulfate helped nutrient accumulation of upper leaf in mature period, spraying zinc sulfateand borax could coordinate chemical composition of flue-cured tobacco leaf, and promote the economic traits of the indicators. [ Conclusion]Comprehensive analysis, in ecological and climatic conditions of Luonan county, zinc sulfate （ g·L-1 ） were sprayed 3 times, and ev-ery 7 days sprayed 1 time after topping, could improve nitrogen and potassium nutrition on upper leaf of flue-cured tobacco in mature period,conducive to carbohydrate accumulation, coordinate chemical components, so as to improve the tobacco yield and quality.
出处
《西南农业学报》
CSCD
北大核心
2017年第9期2130-2135,共6页
Southwest China Journal of Agricultural Sciences
基金
广东中烟工业有限责任公司技术中心科技项目(粤烟工05XM-QK[2014]015)
关键词
烤烟
矿质元素
经济性状
品质
Flue-cured tobacco
Mineral elements
Economic characters
Quality
