华南农业大学学报2011，Vol.32Issue(3)：42-47,6.
基肥一次性供氮对烤烟氮素吸收利用的影响
Effects of Nitrogen Application on N Absorption and Utilization of Flue-Cured Tobacco Under the Fertilizer Applied as Only Basal
摘要
Abstract
To study the effects of nitrogen fertilizer applied as only basal on N absorption and utilization of flue-cured tobacco,a field experiment was conducted using flue-cured tobacco, Nicotiana tobacum L. , cultivar Yue 97 grown in a completely randomized block design at Nanxiong Tobacco Science Institute of Guangdong in 2009. The results showed that;1) Under nitrogen fertilizer applied as only basal,the soil supplying nitrogen capacity at late growth period of tobacco was not promoted evidently by the increasing of nitrogen application in the range of 48 -168 kg · hm-2.2) Nitrogen uptake by tobacco could be pro-moted significantly from artificial nitrogen application, the yield of tobacco applied with artificial nitrogen fertilizer at 48,108,168 kg · hm-2 was equivalent to 170% ,152% and 149% of the treatment without artificial nitrogen application, respectively, and artificial nitrogen application could increased growth and yield of tobacco. 3 ) Nitrogen uptake by tobacco could not be promoted evidently by the increase of artificial nitrogen application in the range of 48 -168 kg · hm-2(P ＞0. 05) ,while there was the decline of their nitrogen use efficiency, nitrogen agronomic efficiency, yield and output value. 4) Tobacco total sugar and reducing sugar decreased evidently with the increased of total nicotine from adding artificial nitrogen fertilizer. However, the sensory quality of flue-cured tobacco was not be affected significantly by the enrichment of artificial nitrogen. The nitrogen fertilizer applied as only basal by artificial nitrogen 48 kg · hm -2 can meet the need of nitrogen nutrition of tobacco and enhance significantly its nitrogen use efficiency and nitrogen agronomic efficiency.关键词
烤烟/基肥/氮素吸收/氮素利用Key words
flue-cured tobacco/ base fertilizer/ nitrogen uptake/ nitrogen utilization分类
农业科技引用本文复制引用
王军,陈能场,谢玉华,李斌,顾学文,柯油松,徐胜光..基肥一次性供氮对烤烟氮素吸收利用的影响[J].华南农业大学学报,2011,32(3):42-47,6.基金项目
广东省自然科学基金(9151065003000003) （9151065003000003）
广东省烟草专卖局重点科研项目(粤烟科[2008]19号) （粤烟科[2008]19号）
川渝中烟工业公司《南雄浓香型风格特色烟叶生产技术开发及示范推广》项目 （）
