烤烟叶面积的大小对烟叶产量高低和品质优劣有直接关系。据我所试验,烤烟采收叶面积系数以4.5左右为宜,这样,既能保证产量,又能兼顾质量,过大过小都会使产量下降或品质变劣。要知道叶面积系数,就需要通过实际测定。迄今为止,叶面积的测定大都采用摘叶 The size of flue-cured tobacco leaf area is directly related to the yield and quality of tobacco leaves. According to my test, the leaf area coefficient of the flue-cured tobacco harvest is about 4.5, so that both the yield and the quality can be guaranteed. Too much or too little will result in the decline of output or the deterioration of quality. To know the leaf area coefficient, we need to pass the actual measurement. So far, the determination of leaf area mostly pick leaves