通过田间小区试验,在贵州省仁怀市和遵义市道真仡佬族苗族自治县分别研究了等养分条件下烤烟不同起垄及覆盖方式的免追肥技术对烟株生长发育和烟叶经济产量的影响。结果表明,在地膜覆盖条件下,无论是双行凹垄还是单行垄,免追肥即肥料全部基施对烤烟的主要经济指标均有促进作用。两试验点烤烟主要经济性状表现最好的均为双行凹垄全生育期地膜覆盖免追肥处理,与单行地膜覆盖有追肥的处理相比,烟叶产量增加7.7%,产值增加10.5%。 Field experiments were conducted in Renhuai City, Guizhou Province and Daozhen Gelao and Miao Autonomous County of Zunyi to study the effects of different techniques of dressing and dressing on the growth and development of flue-cured tobacco and the economic yield of tobacco under different nutrient conditions. The results showed that under the conditions of plastic film mulching, whether it is double row ridge or single row ridge, no fertilizer topdressing, that is, all basal application of fertilizer, can promote the main economic indexes of flue-cured tobacco. The main economic traits of flue-cured tobacco at the two experimental sites were the top two rows of plastic mulching without cover dressing during the whole growth period. The output of tobacco increased by 7.7% and the output value increased by 10.5% compared with the single-row mulching with topdressing.