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叶面积系数指单位叶面积上的绿叶面积与上地面积相比的倍数(比值)。烟草栽培是以采叶为目的,所以叶面积是影响产量的一个重要因素,而叶面积系数更是群体特征的主要指标。在烟叶生产中,除考虑产量以外,还必须考虑叶面积扩大,叶面积系数增加对烟叶品质的影响,因而必须通过试验,结合具体情况,找出合理的叶面积系数,以达到优质适产的目的。
Leaf area index refers to the unit leaf area of the green leaf area and ground area compared to the multiple (ratio). Tobacco cultivation is based on leaf harvesting, so leaf area is an important factor affecting yield, while leaf area coefficient is the main index of population characteristics. In tobacco production, in addition to considering the yield, but also must take into account the expansion of leaf area, leaf area coefficient to increase the impact on the quality of tobacco, which must be tested, combined with specific circumstances, to find a reasonable leaf area coefficient in order to achieve high quality purpose.