磷对不同烤烟品种调制后烟叶物理特性的影响

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.结果表明:各品种施磷处理的烤烟叶片单叶重较大,叶片含梗率较小.除中烟100和中烟101的上部叶外,施磷处理的烟叶叶质重均不同程度的提高,叶片平衡含水率更加适宜,并使烟叶的填充力适当减小,烟叶的抗张强度增强.4个不同烤烟品种上、中、下部烤后叶片的含梗率、平衡含水率和抗张强度3个指标均表现显著性差异.

Effects of Phosphorus Fertilization on the Physical Indexes of Different Fluecured Tobacco Varieties

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.The results showed that,compared to the tobacco without phosphorus treatment,the single-leaf-weight of the tobacco with phosphorus fertilization increased,the leaf stalk content decreased and the density of leaf fabric increased in a certain context except the upper leaves of Zhongyan100 and Zhongyan101.The equilibrium moisture content of the leaves with P treatment was more suitable than that of those without P treatment.The leaf stuff force of each flue-cured tobacco variety with normal phosphorus treatment decreased,but the tensile strength increased obviously.The differences of the leaf stalk content as well as equilibrium moisture content and tensile strength of upper,middle and lower leaves of all varieties were significant among varieties.