Department of Environmental Chemistry, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland.
Int J Phytoremediation. 2021;23(7):669-683. doi: 10.1080/15226514.2020.1849013. Epub 2020 Nov 24.
The study was undertaken to determine the effects of various substances (manure, clay, charcoal, zeolite, and calcium oxide) applied to a cobalt-contaminated soil (0, 20, 40, 80, 160 and 320 mg kg of soil) on the content of certain trace elements in spring barley (main crop) and white mustard (after-crop). The effect of cobalt on the contents of the trace elements was ambiguous and was either antagonistic or synergistic in nature, depending on the organ and plant species. Generally, the substances applied to soil reduced the content of most trace elements in above-ground parts of both plants and in the roots of white mustard, in contrast to the roots of spring barley. Of all the substances, calcium oxide had the strongest and generally reducing effect on the content of trace elements in the tested organs of the plants; however, its effect was the weakest in the roots of white mustard. It is difficult to find in the literature the results of studies into the effect of mineral and other amendments used in our research (manure, clay, charcoal, zeolite, and calcium oxide) on trace elements content in plants if they are used with a view to weakening the effect of cobalt on plants. We think that it is the novelty in the results of environmental sciences. The literature refer to the application of organic matter, bentonite, zeolite and calcium oxide to neutralize other heavy metals. The research was carried out in the two plants system used for phytoremediation with main crop (spring barley- L.) and after-crop (white mustard- L.). The trace elements were analyzed in test plants. The results of the research allowed to select the most effective substance to support the phytoremediation of soil contaminated with cobalt.
本研究旨在确定应用于钴污染土壤（0、20、40、80、160 和 320 mg kg 土壤）的各种物质（粪肥、粘土、木炭、沸石和氧化钙）对春大麦（主要作物）和白芥菜（后茬作物）中某些微量元素含量的影响。钴对微量元素含量的影响是不确定的，其性质取决于器官和植物种类，可能是拮抗的，也可能是协同的。一般来说，施用于土壤的物质会降低两种植物地上部分和白芥菜根部中大多数微量元素的含量，而春大麦根部则相反。在所有物质中，氧化钙对测试植物器官中微量元素含量的影响最强且通常呈降低趋势；然而，其对白芥菜根部的影响最弱。在文献中很难找到我们研究中使用的矿物质和其他改良剂（粪肥、粘土、木炭、沸石和氧化钙）对植物中微量元素含量的影响的研究结果，如果这些改良剂是为了减弱钴对植物的影响而使用的。我们认为这是环境科学研究结果的新颖之处。文献中提到了施用有机物、膨润土、沸石和氧化钙来中和其他重金属。该研究在用于植物修复的两种植物系统中进行，主要作物（春大麦）和后茬作物（白芥菜）。在试验植物中分析了微量元素。研究结果允许选择最有效的物质来支持受钴污染土壤的植物修复。
