Pedosphere 2(2): 153--160, 1992
ISSN 1002-0160/CN 32-1315/P
©1992 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Study on Soil and Pine-Seedling Zn and Mn and Predicting-Model Design |
| ZHANG JI-ZHEN, J. G.JYER |
| Anhui Agricultural College, Hefei 230036 |
| ABSTRACT |
| Soils were collected from 2-year (2-y) and 3-year (3-y) old red-pine seedling plots in two tree nurseries, Hayward in the north and Wilson in the southwestern part of Wisconsin State respectively, and equilibrated with 0.01 M Ca(NO3)2 for soil solution Zn and Mn (solu-Zn and Mn), and with 0.01 M Ca(NO3)2+0.005 M EDTA for soil adsorbed Zn and Mn (ad-Zn and Mn). Buffering capacity of soil Zn and Mn (b-Zn and Mn) was obtained from the ratio of ad-Zn and Mn to the solu-Zn and Mn. The concerned traces in pine seedling needles (ndls), stems(sts) and roots (rts) were simultaneously measured. |
| Key Words: |
| Citation: Zhang, J. Z. and Jyer, J. G. 1992. Study on Soil and Pine-Seedling Zn and Mn and Predicting-Model Design. Pedosphere. 2(2): 153-160. |
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