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Effect of Amorphous Silicon Dioxide on Cadmium Behavior in the Soil–Rice Plant Systemстатья
Дата последнего поиска статьи во внешних источниках: 24 октября 2018 г.
- Авторы: Xiao Weia, Pengbo Zhang, Bocharnikova E.A., Matichenkov V.V., Khomiakov D.M., Pakhnenko E.P.
- Журнал: Moscow University Soil Science Bulletin
- Том: 73
- Номер: 1
- Год издания: 2018
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 34
- Последняя страница: 38
- Оригинальные версии: Влияние аморфного диоксида кремния на поведение кадмия в системе почва-растения риса
- DOI: 10.3103/S0147687418010076
- Аннотация: The effect of amorphous silicon dioxide (SiO2) on cadmium behavior in the soil–plant system was studied in a field experiment on a flooded paddy soil slightly contaminated by cadmium. The application ofamorphous SiO2 results in a 1.3- to 1.8-fold smaller cadmium accumulation in the aboveground organs of riceand a 1.8- to 2.6-fold decrease in the content of its available compounds, which can be explained by metal sorption on the surface of applied silicon dioxide and by the reaction of monosilicic acid, which forms in the SiO2 solution, with cadmium. The decrease in cadmium availability is most intensive in the first 2 weeks after SiO2 application. Amorphous silicon causes a 26.6% increase in rice productivity in the first season and 72.9% in the second. The data obtained testify to the fact that the application rates of traditional mineral fertilizers can be decreased without risk to rice productivity if silicon compounds are used. They should become an integral and important part of implementing the 4R-STRATEGY for fertilizer application and plant nutrition optimization. Keywords: cadmium in soil and plants, monosilicic acid, rice harvest, 4R-STRATEGY for fertilizer application and plant nutrition optimization
- Добавил в систему: Хомяков Дмитрий Михайлович