Wyszkowski Mirosław, Radziemska Maja
Department of Environmental Chemistry, University of Warmia and Mazury in Olsztyn, Plac Łódzki 4, 10-727 Olsztyn, Poland.
Water Air Soil Pollut. 2013 Jul;224(7):1619. doi: 10.1007/s11270-013-1619-9. Epub 2013 Jun 21.
The purpose of this study was to determine the effect of soil contamination with tri- and hexavalent chromium and soil application of compost, zeolite, and CaO on the mass of oats and content of nitrogen compounds in different organs of oats. The oats mass and content of nitrogen compounds in the crop depended on the type and dose of chromium and alleviating substances incorporated to soil. In the series without neutralizing substances, Cr(VI), unlike Cr(III), had a negative effect on the growth and development of oats. The highest doses of Cr(VI) and Cr(III) stimulated the accumulation of total nitrogen but depressed the content of N-NO in most of organs of oats. Among the substances added to soil in order to alleviate the negative impact of Cr (VI) on the mass of plants, compost had a particularly beneficial effect on the growth and development of oats. The application of compost, zeolite, and CaO to soil had a stronger effect on the content of nitrogen compounds in grain and straw than in roots. Soil enrichment with either of the above substances usually raised the content of nitrogen compounds in oats grain and straw, but decreased it in roots.
本研究的目的是确定土壤中三价铬和六价铬污染以及在土壤中施用堆肥、沸石和氧化钙对燕麦质量和燕麦不同器官中氮化合物含量的影响。燕麦的质量和作物中氮化合物的含量取决于铬的类型和剂量以及施用于土壤的缓解物质。在没有中和物质的系列中，与三价铬不同，六价铬对燕麦的生长和发育有负面影响。最高剂量的六价铬和三价铬刺激了总氮的积累，但降低了燕麦大多数器官中硝态氮的含量。在添加到土壤中以减轻六价铬对植物质量负面影响的物质中，堆肥对燕麦的生长和发育具有特别有益的影响。在土壤中施用堆肥、沸石和氧化钙对籽粒和秸秆中氮化合物含量的影响比对根系的影响更强。用上述任何一种物质富集土壤通常会提高燕麦籽粒和秸秆中氮化合物的含量，但会降低根系中的含量。
