【摘要】 2012年针对不同施氮水平对烤烟产质量的影响,将云烟87在梁河县曩宋乡进行夏烟早植同田对比试验.结果表明:施纯氮60～90 kg/hm2团棵期后表现出脱肥,中上部叶开片差,叶片小、薄,叶片衰老快,烤出的烟叶多为柠檬色,单叶质量较小,产量、产值、均价低;施纯氮120～150 kg/hm2叶色为浓绿色,上部烟叶开片较好,叶片厚度适中,烤出的烟叶多为桔黄色,单叶质量较大,产量、产值、均价高于当地大田生产;施纯氮150 kg/hm2成熟期延迟.施氮水平对总糖、还原糖、两糖差、糖碱比有一定影响,对钾、氯、烟碱影响不大.研究证实,在当地自然环境与栽培技术下,云烟87夏烟早植施纯氮120 kg/hm2为宜.海拔1 000 m以上,地下水位较高或土壤肥力偏低的田块可施纯氮135 kg/hm2.更多还原

【Abstract】 In 2012,because of the effect of different level of nitrogen on the tobacco yield and quality,the flue-cured tobacco variety Yunyan 87 in Lianghe County township of Nang Song summer tobacco early planting has the field contrast test.The results showed that 60—90 kg/hm2 rosette stage after the show unwound fertilizer,in upper leaf of differential,leaves small,thin,fast baking tobacco leaf senescence,mostly for lemon leaf weight,lighter,yield,output value,price low.120—150 kg/hm2 leaf color is thick green,a good upper leaves of flue-cured tobacco,leaf thickness is moderate,baking color is orange,leaf yield,output value,heavier,price higher than the local field production,apply 150 kg/hm2 pure nitrogen maturation delay.Nitrogen application level on total sugar,reducing sugar,two sugar,sugar,nicotine ratio difference has certain influence on nicotine,chlorine,potassium,impact,research confirms,in various parts of the natural environment and cultivation technology of summer planting tobacco Yunyan 87,early application of pure N 120 kg/hm2 margin.Above 1 000 meters elevation,high underground water level and soil fertility on field application of pure N 135 kg/hm2.更多还原