作物研究2016，Vol.30Issue(6)：714-718,5.DOI:10.16848/j.cnki.issn.1001-5280.2016.06.26
嘉禾烟区‘云烟99’适宜施氮量与种植密度初探
Preliminary Research on the Optimal Nitrogen Application Rate and Planting Density of ‘Yunyan 99’in Jiahe Tobacco Area
摘要
Abstract
The optimal nitrogen application rate and planting density of flue -cured tobacco variety ‘Yunyan 99 ’were studied by determination of agronomic traits,economic traits and chemical components in cured leaves. The results showed that:plant height,stem girth and area of the biggest leaf and economic traits were improved by increment of nitrogen appli-cation rate. Proportion of superior and middle leaves,yield,average price and output value of N3 treatment were signifi-cantly higher than those of N1 and N2. The chemical components of cured leaves were considered comprehensively,the quality of cured leaves of treatment N2 was better. Difference in agronomic traits between D1 and D2 was not significant except the plant height,while the economic traits of D1 were better than those of D2. There were differences in components of cured leaves of D1 and D2,and which mainly existed in middle and upper leaves. The chemical components in cured leaves were considered comprehensively,quality of cured leaves of treatment D1 was slightly better. So the optimal nitrogen application rate and density of Yunyan 99 planted in Jiahe tobacco area was 150~172. 5 kg/hm2 and 16 500 plant/hm2 re-spectively.关键词
烤烟/施氮量/种植密度/云烟99/嘉禾Key words
flue-cured tobacco/nitrogen application rate/planting density/Yunyan 99/Jiahe county分类
农业科技引用本文复制引用
周亚哲,杨梦慧,王芳,戴林建,易镇邪..嘉禾烟区‘云烟99’适宜施氮量与种植密度初探[J].作物研究,2016,30(6):714-718,5.基金项目
贵州中烟公司科技项目。 （）
