Effect of different soil moistures in tobacco maturing stage on water content and chemical components of tobacco leaf was studied with the pot experiment in flue-cured tobacco--C.V.K 326. The results showed that the reduction of soil moisture resulted in the decrease in the moisture content and water potential of leaf, the contents of total sugar and K; the increase in the contents of Ca and total nitrogen and nicotine. Between 60-80 percent of soil moisture, the contents of Fe, Zn, Na, P and Mg were modera...