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《Journal of Henan Agricultural Sciences》 2004-06
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Effect of Different Nitrogen Forms and Proportion on Nitrogen Metabolism of Flue-cured Tobacco Leaf

LIU Wei-qun 1,YUE Jun-qin 1,WANG Qing-chang 2,QI Feng 2; (1 College of Agronomy,Henan Agricultural University,Zhengzhou 450002,China; 2 Wheat Research Institute , Henan Academy of Agricultural Sciences)  
Studies on the influence of different nitrogen forms and key enzyme of flue-cured tobacco nitrogen metabolism NR,GS activity,total N and the content of nicotine was studied showed that NR and GS activity of T2 treatment (applied NH 4-N singlely) was the highest after transplanting 30 days.The content of all the nitrogen of T1 (applied NO 3-N singlely) was increased 53.40%, T2 was increased 60.23%,T3 (NO 3-N∶NH 4-N=1∶1) was increased 23.75%in 30-76 days after transplanting.The content of nicotine in mature stage decreased with increase of proportion of mitrate nitrogen.
【Fund】: 国家烟草专卖局重点项目 ( 1 1 0 2 0 0 0 0 1 0 1 1A)
【CateGory Index】: S572
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