Content of mineral nutrients in plants of oats depending on the dose and form of the copper fertilizer. Pt. 2. Microelements
1988
Jurkowska, H. | Rogoz, A. (Akademia Rolnicza, Krakow (Poland). Katedra Chemii Rolnej)
Low doses of copper showed little effect on the microelement content; they only caused an increase of Zn content in straw and that of Fe and Zn in roots. High doses of copper increased the content of Fe and Mn in roots, that of Zn in straw and roots, and decreased Fe content in grain and that of Mo in straw and roots. The toxic copper dose caused an increase in content of Fe in roots and that of Mn and Zn in tops and roots, as well as a decrease in Fe content in tops, and that of Mo in tops and roots. As an effect of high doses of copper and of the toxic dose there occurred a narrowing of the ratio of the contents of Cu, Fe, Mn, Zn, and Mo in tops to their content in roots. Copper fertilizing also caused the narrowing of the ratio Zn-grain: Zn-straw, and a widening of the ratio Mo-grain: Mo-straw.
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