要提高烟叶质量,采收也是很重要的一环,具体说来,就是要掌握以下采收技巧。 一看 首先要看烟叶是否成熟。一般下部烟叶成熟快,叶片薄,组织疏松,水分多,一旦成熟就应采收。中部及中部以上叶片,生长过程中光照强烈,发育旺盛,养分供应充足,烟叶成熟缓慢,因此,要在完熟期采收。栽植在较瘠薄土壤上的烟叶,成熟快,要提早采收。判断烟叶成熟的标准是:①烟叶颜色变淡,由绿色变为黄绿色或绿色之中呈现黄斑。②叶尖下垂,茎叶之间角度增大。③叶面茸毛脱落,光泽增 To improve the quality of tobacco, harvesting is also a very important part, specifically, is to master the following harvesting skills. First look at whether the tobacco is mature. Lower leaves generally mature quickly, thin leaves, loose tissue, water and more, should be harvested once ripe. Central and above the middle of the leaves, the growth process of intense light, vigorous development, adequate nutrient supply, tobacco matures slowly, therefore, to be harvested in the mature period. Tobacco plants planted in barren soil, mature quickly, to be harvested early. Criteria to determine the maturity of tobacco is: ① faded leaves, from green to yellow-green or green among the macular. ② tip drooping, the angle between the stems and leaves increased. ③ leaves hair loss, luster increased