This paper studied the effects of combined application of different slow-release fertilizers and foliage fertilizer on the growth, development and photosynthetic characteristics of tobacco plants. The results showed that:the combined application of slow-release fertilizer and foliage fertilizer could promote the height of tobacco plants to a certain extent; different fertilization treatments had significant effects on the leaf chlorophyll content and photosynthetic indexes (net photosynthetic rate, etc.) of to-bacco plants, and the leaf chlorophyll content and net photosynthetic rate all increased with the increase in the growth time;on the 80th day after transplanting, both the leaf chlorophyll content and the net photosynthetic rate of tobacco plants in the treatment T2 ( traditional fertilization plus applying Duoweifeijing granule plus spraying 800-fold diluent of foliage fertilizer Yelvbao) reached the maximum value, and they were respectively 23.26％ and 16.18％ higher than those in the control group ( traditional fertiliza-tion) .%研究了不同缓释肥与叶面肥配施对烟草生长发育和光合特性的影响.结果表明:缓释肥与叶面肥配施对烟草株高的增加具有一定的促进作用;不同施肥处理对烟草叶片的叶绿素含量和净光合速率等光合指标均有显著的影响,叶绿素含量和净光合速率均随着生长时间的增加而升高,且在移栽后80 d时,T2处理(烟草传统施肥+多维肥精颗粒剂+叶绿宝800倍液叶面喷施)的烟草叶片叶绿素含量和净光合速率均达到最高值,分别较传统施肥处理提高了23.26％和16.18％.
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