我国烤烟产值产量质量及其与气候年景关系的研究

利用 1953～ 1993年我国烤烟单位面积产值、产量和上中等烟比重资料 ,划分我国烤烟高低产值、丰歉和优劣质年景 ,研究高低产值年烤烟产值与产量及中等烟比重之间的关系 ,为烤烟生产获得最佳经济效益提供依据 .结果表明 :高产值年型在产量上为正常或丰收年景 ,在质量上大多为正常或优质年景 ;低产值年型则相反 ,在产量上大多为歉收年景 ,在质量上大多为正常或劣质年景 .就全国范围而言 ,现阶段烤烟单产 170 0kg/hm2 左右、上中等烟比重 50 %左右、气象产量 180kg/hm2左右、上中等烟气象比重 2 %左右 ,烤烟生产经济效益最佳 .在主攻烤烟质量上 ,各地发展不平衡 ,一些地区仍需努力提高上中等烟比重 .

RESEARCHES ON THE RELATIONSHIP BETWEEN OUTPUT VALUE AND YIELD OR QUALITY OF FLUE-CURED TOBACCO AND THEIRS CLIMATIC TYPE IN CHINA

Five categories of year's incomes i.e. highest, high, middle, low and lowest, were divided based on the output value data per unit area of flue cured tobacco from 1953 to 1993 in China. The relationship between output value and yield or quality of flue-cured tobacco in high or low income years was studied for gaining the best economic effect in its products. The results showed that there were normal or good year's harvests and quality in high income years, while there were mostly poor year's harvests and quality in low income years. The best econmic effect in tobacco products was gained When average yields of flue cured tobacco got to about 1700kg/hm 2, With about 50% superior middle grade tobacco leaves, and their percentages of which affected by weather were about 11%, 4% respectively. The raising ratio of superior middle grade tobacco leaves still is a must in the tobacco zone.