Leaf quality of Ginkgo biloba at the late growing stage with different NO3- -N and NH4+ -N combinations

ZHENG Jun; CAO Fu-liang; YU Wan-wen

Volume 24 Issue 5

Jul. 2017

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ZHENG Jun, CAO Fu-liang, YU Wan-wen. Leaf quality of Ginkgo biloba at the late growing stage with different NO3- -N and NH4+ -N combinations[J]. Journal of Zhejiang A&F University, 2007, 24(5): 564-568.

Citation:

ZHENG Jun, CAO Fu-liang, YU Wan-wen. Leaf quality of Ginkgo biloba at the late growing stage with different NO₃^- -N and NH₄⁺ -N combinations[J]. Journal of Zhejiang A&F University, 2007, 24(5): 564-568.

Leaf quality of Ginkgo biloba at the late growing stage with different NO₃^- -N and NH₄⁺ -N combinations

1.
College of Forest Resources and Environment, Nanjing Forestry University , Nanjing 210037 , Jiangsu, China

Publish Date: 2004-10-20

Abstract

To find how to improve the leaf quality of Ginkgo biloba (ginkgo) at the late growing stage by fertilization , leaf quality of ginkgo at the late growing stage with different combinations of NO3- -N and NH4+ -N was studied.The test resources were two-year-old ginkgo seedlings in the greenhouse of Nanjing Forestry University , transplanted and grown in pot cultures with 1.00 gpot-1 N .A CRD experimental design was established with 3 replications and treatments of NO3- -N and NH4+ -N ratios 0∶0 (the control), 0∶100 , 25∶75 , 50∶50 .75∶25 and 100∶0 .Results showed that root vigor (RV) , nitrate reductase activity (NR)and NO3- -N of the leaf , was significantly greater with NO3- -N (P 0.01).Also soluble protein (SP), free amino acid (AA) and total flavone (TF) with treatments of NO3- -N and NH4+ -N ratios 50∶50 and 75∶25 were significantly greater (P 0.01) than others, soluble sugar (SS) and reducing sugar (RS)with treatment of NO3- -N and NH4+ -N ratios 50∶50 were significantly greater (P 0.01) than others .As the proportion of NH4+ -N increased and NO3- -N decreased a little ,NO3- -N in the G.biloba leaf decreased with SP, free AA , SS , RS , and TF increasing .For NO3- -N , SP , free AA , SS , RS , and TF , the best NO3- -N∶NH4+ -N were 75∶25 and 50∶50 .[ Ch , 6 fig .2 tab .12 ref .]
- botany,
- Ginkgo biloba,
- N forms,
- NO3- -N to NH4+ -N ratio,
- leaf quality

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Leaf quality of Ginkgo biloba at the late growing stage with different NO₃^- -N and NH₄⁺ -N combinations

1. College of Forest Resources and Environment, Nanjing Forestry University , Nanjing 210037 , Jiangsu, China

Publish Date: 2004-10-20

Key words:

Abstract: To find how to improve the leaf quality of Ginkgo biloba (ginkgo) at the late growing stage by fertilization , leaf quality of ginkgo at the late growing stage with different combinations of NO3- -N and NH4+ -N was studied.The test resources were two-year-old ginkgo seedlings in the greenhouse of Nanjing Forestry University , transplanted and grown in pot cultures with 1.00 gpot-1 N .A CRD experimental design was established with 3 replications and treatments of NO3- -N and NH4+ -N ratios 0∶0 (the control), 0∶100 , 25∶75 , 50∶50 .75∶25 and 100∶0 .Results showed that root vigor (RV) , nitrate reductase activity (NR)and NO3- -N of the leaf , was significantly greater with NO3- -N (P 0.01).Also soluble protein (SP), free amino acid (AA) and total flavone (TF) with treatments of NO3- -N and NH4+ -N ratios 50∶50 and 75∶25 were significantly greater (P 0.01) than others, soluble sugar (SS) and reducing sugar (RS)with treatment of NO3- -N and NH4+ -N ratios 50∶50 were significantly greater (P 0.01) than others .As the proportion of NH4+ -N increased and NO3- -N decreased a little ,NO3- -N in the G.biloba leaf decreased with SP, free AA , SS , RS , and TF increasing .For NO3- -N , SP , free AA , SS , RS , and TF , the best NO3- -N∶NH4+ -N were 75∶25 and 50∶50 .[ Ch , 6 fig .2 tab .12 ref .]

Leaf quality of Ginkgo biloba at the late growing stage with different NO₃^- -N and NH₄⁺ -N combinations

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通讯作者: 陈斌, bchen63@163.com

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Leaf quality of Ginkgo biloba at the late growing stage with different NO₃^- -N and NH₄⁺ -N combinations

1. College of Forest Resources and Environment, Nanjing Forestry University , Nanjing 210037 , Jiangsu, China

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Leaf quality of Ginkgo biloba at the late growing stage with different NO3- -N and NH4+ -N combinations

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通讯作者: 陈斌, bchen63@163.com

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