The effects of phosphorus fertilization on the physical indexes of upper,middle and lower leaves of different flue-cured tobacco varieties which were Zhongyan100,K326,Zhongyan101 and NC89 were studied under field conditions.

• 采用大田试验,研究了施磷和不施磷对中烟100、K326、中烟101和NC89四个不同烤烟品种调制后上、中、下3个部位叶片物理特性的影响。