Section 7
Chapter 6,872

Uptake of some trace elements by winter wheat and winter rape as affected by nitrogen phosphorus potassium fertilizing liming and watering

Rebowska, Z.

Pamietnik Pulawski 80: 33-48


ISSN/ISBN: 0552-9778
Accession: 006871093

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The dynamics of B, Cu, Mn, Zn and Mo uptake by winter wheat cv. Grana and winter rape cv. Gorczanski. The plants grew lysimeters 1 m2 each, filled with loamy sand underlaid with loam. The following experiment treatments were set: with liming (CaCO3) and without liming; 2 levels of soil moisture (without watering and watered when the soil moisture was getting < 70% of the field water capacity) and 2 levels of NPK fertilization were involved. The level of mineral fertilizing and watering did not affect the content of trace elements in the aboveground parts of plants. Liming of the soil caused decrease of Mg and Zn and increase of Mo content in wheat and rape. No effect of liming on the concentration of Cu and B in the dry matter of plants was observed. The total uptake of trace elements (in terms of a single plant) was closely related to the dry matter yield height. Doubling the NPK rate and watering resulted in the increased uptake of all the determined trace elements by both plant species. Liming of the soil caused decrease of Mn and Zn uptake by winter wheat and Mn, Zn, Cu and B uptake by winter rape, while increasing uptake of Mo by both plants. In winter wheat the most intensive uptake of trace elements occurred between tillering and earing, later being insignificant. The rape plants absorbed very little trace elements (5-9% of the total quantity) until the budding stage; the highly intensive uptake occurred during the whole period from the budding stage to the technical maturity.

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