Nickel phytotoxicity in relationship to soil ph manipulation and chelating agents
| Autor: | S. M. Soufi, F. M. Chaudhry, A. Wallace, J. W. Cha, E. M. Romney |
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| Rok vydání: | 1977 |
| Předmět: | |
| Zdroj: | Communications in Soil Science and Plant Analysis. 8:757-764 |
| ISSN: | 1532-2416 0010-3624 |
| DOI: | 10.1080/00103627709366770 |
| Popis: | The main objective of this study was to ascertain effects of some edaphic factors on the uptake and influence of Ni on plant growth sinee Ni is a common trace element contaminant as well as an important component of serpentine soils. Corn (Zea mays L. inbred Ys1/Ys1) was rown in Yolo loam soil amended to give soil pH values of 4.2, 5.6, 7.5, and 8.2. A level of 100 μg Ni/g soil was not toxic to the corn. Shoot concentrations of Ni increased as soil pH decreased for both application rates of Ni. A level of 250 μg Ni/g soil decreased yields more at soil pH below 7 than above 7. Iron, Zn, and Mn levels in shoots did not appear to be directly related to the Ni applications although Fe levels tended to increase as a result of smaller plant size. PI54619–5–1 soybeans (Glycine max L. ) were grown in soil at two different pH values (with and without CaCO3) and with and without a level of 1000 μg Ni/g added as the sulfate and thoroughly mixed with the soil and equilibrated for 1 month prior to transplanti... |
| Databáze: | OpenAIRE |
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