Results showed that nitrogen fertilization rate significantly affected tobacco plant growth, leaf SPAD value, dry matter accumulation, leaf yield, economic value as well as chemical components. 結(jié)果表明：在綠肥全部還田條件下，不同氮肥用量對(duì)烤煙株高、煙葉SPAD值、煙株干物質(zhì)累積以及烤后煙葉產(chǎn)量、產(chǎn)值和化學(xué)成分均有一定的影響。