摘要
This study aimed to investigate the application effect of analog water-soluble fertilizer as an alternative of flue-cured tobacco-specific topdressing fertilizer. A field experiment was conducted, and the dry matter accumulation, intrinsic chemical composition, smoking quality and economic benefit of flue-cured tobacco were compared between analog water-soluble fertilizer and conventional fertilizer, The results showed compared with conventional fertilizer, analog water-soluble fertilizer increased the dry matter accumulation in flue-cured tobacco by 4.90%-16.70%, increased the yield of flue-cured tobacco by 6%-15%, and increased the output of flue-cured tobacco by 5%-14%. In terms of chemical composition, the flue-cured tobacco applied with analog water-soluble fertilizer was better than that applied with conventional fertilizer, except the nicotine content in the upper leaves, the potassium content in the middle leaves and the reducing sugar content. The smoking quality of both the upper and middle leaves of flue-cured tobacco in the analog water-soluble fertilizer treatment groups was better than that in the conventional fertilizer treatment group. In short, analog water-soluble fertilizer was better than conventional fertilizer, with advantages of lower cost （reduced by 381.60 yuan/hm2）, lower application amount （reduced by 165 kg/hm2） and higher utilization efficiency.
为比较不同模拟水溶肥不同处理替代烟草专用追肥在烤烟生产上的应用效果,通过田间试验措施,比较各处理模拟水溶肥与常规施肥的干物质积累、内在化学成分、评吸质量及经济效益等效果。结果表明,各处理模拟水溶肥在烟叶干物质积累上均有一定增加,增幅从4.90%~16.70%;产量、产值分别较常规施肥增加6%~15%及5%~14%。部分处理达到显著水平;在化学成分表现上,除上部烟叶烟碱、中部烟叶含钾量表现不一、还原糖相当以外,其余表现均优于常规施肥;在评吸质量上,无论中部烟叶、上部烟叶均好于常规对照。综合各项指标对比,模拟水溶肥处理(N∶P∶K=1∶1.2∶2)表现最优;在总体成本上,水溶肥也低于常规施肥成本381.60元/hm2,较常规减少施用量165 kg/hm2,提高肥料利用率。
基金
Supported by Support Project of Guizhou Branch of China Tobacco Corporation(2015-07)~~
