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Monday, April 20, 2020 | History

3 edition of Relationships between soil factors and selenium content of danish soils and plants found in the catalog.

Relationships between soil factors and selenium content of danish soils and plants

A. A. Hamdy

Relationships between soil factors and selenium content of danish soils and plants

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Published by Forsoegsanlaeg Risoe in Roskilde .
Written in English


Edition Notes

StatementBy A. A. Hamdy and G. Gissel-Nielsen.
SeriesRisoe report -- no. 349
ContributionsGissel-Nielsen, G., Forsoegsanlaeg Risoe. Forsoegslandbrugsafdelingen.
The Physical Object
Pagination13 s
Number of Pages13
ID Numbers
Open LibraryOL21676758M
ISBN 108755004199
OCLC/WorldCa258229253

  Purchase Dynamics, Mobility and Transformation of Pollutants and Nutrients, Volume 28A - 1st Edition. Print Book & E-Book. ISBN , The subject of this chapter is soil chemistry. The chapter is entitled Processes and Factors Affecting Phosphorus (P) Adsorption in Soils. The chapter aims to give an overview of the major mechanisms responsible for phosphate sorption (i.e., adsorption and absorption of phosphate) in soils, particularly of acid soils. According to studies conducted by some soil scientists, the major soil


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Relationships between soil factors and selenium content of danish soils and plants by A. A. Hamdy Download PDF EPUB FB2

Various extraction methods have been used to determine selenium (Se) concentrations in soils and plants in the second seleniferous regions of China.

Our results show tea Se contents in the study area range from to mg/kg, which reveal that the tea areas in Ziyang County are in seleniferous regions.

The four extraction methods evaluated in this study provide different information Relationships between soil factors and selenium content of Danish soils and plants By A.A. Hamdy and Gunnar Gissel Nielsen Topics: Risø-R, Risø, Risø report Data obtained by atomic absorption spectroscopy showed a selenium concentration of only ppm as an average value for the most representative agricultural soils in Belgium.

The selenium content in rye-grass grown on different soil types was between and ppm, and positively correlated with the soil selenium Selenium Deficiency in Soils and Its Effect on Animal Health Author(s) acid soils. Uptake of selenium by plants may also be inhibited by presence of interfering substances in the soil, such as sulphur, or it may be enhanced by liming.

Multivariate Relationships between Soil Composition and Human Mortality Rates in Missouri /Selenium-Deficiency-in-Soils-and-Its-Effect-on. Important factors controlling Se uptake by plants are concentrations and speciation of Se in soils. Generally, Se concentrations in soils are driven by gradients in chemical and physical variables, which are in turn controlled by multiple biotic and abiotic processes that simultaneously span multiple spatial and temporal :// Selenium (Se) is an essential micronutrient for humans 1,2, and most Se is primarily derived from cereals, including through secondary consumption as meat 1,2, general, the accumulation of Se in edible part of plants is highly dependent on Se level in soils 2, China, human Se deficiency is associated with chronic bone and cartilage disease (Kashin-Beck disease) and chronic heart   Abstract.

The total selenium (Se) content of soils in Enshi, China, the so-called “World Capital of Selenium”, is concentrated in a range of 20–60 mg/kg DW which is approximately – times greater than the average Se content ( mg/kg DW) in Se-deficient areas and approximately 50– times greater than that ( mg/kg DW) in Se-enriched areas in China, Relationships between soil factors and selenium content of danish soils and plants book   A comparison between the average Se content in different parts of Chinese soils and the average Se concentration in Chinese earth’s crust ( mg/kg) indicates other factors The correlation coefficient between the water-soluble Se and the total Se in soils is very significant in dryland cultivated soils (; Psoil (; P>) ().However, for natural soils developed under desert and steppe conditions such as desert soil, solonchak, chestnut soil and meadow soil, their correlations are either Soil Geochemistry Spatial Database - References.

M.B. Cadmium in plants on polluted soils: Effects of soil factors, hyperaccumulation, and amendments. Geoderma – The feasibility of using sequential extraction techniques for arsenic and selenium in soil sediments. Soil Sci.

Soc. ?cid=nrcsp2_ SELENIUM-ACCUMULATOR OR SELENIUM-INDICATOR PLANTS Among all plant species, about 25 are unique in the sense that they absorb extremely high amounts of Se from the soil, and they grow preferentially on Se-rich soils; hence, Relationships between soil factors and selenium content of danish soils and plants book group of plants is called Se-accumulator or Se-indicator :// Soil Analysis: An Interpretation Manual is a practical guide to soil tests.

It considers what soil tests are, when they can be used reliably and consistently, and discusses what limits their application. It is the first nationally accepted publication that is appropriate for Australian soils and conditions.

The first three Relationships between soil factors and selenium content of danish soils and plants book review the general principles and concepts of soil testing Non-selenium accumulator plant species may contain between 1 and ~ug g-' selenium on seleniferous soils compared to selenium content of different plants grown in Irish seleniferous soils (Fleming, ) Plant type Selenium (ug g-I)1 Wheat grain 39 White clover Lettuce leaves 56 Cabbage leaves Turnip   However, health outcomes are not only dependent on the total selenium content of rocks and soils but also on the amount of selenium taken up into plants and animals—the bioavailable selenium.

This chapter demonstrates that even soils containing adequate total amounts of selenium can still produce selenium-deficient crops if the selenium is   CHAPTER 1. SOIL PHYSICAL PROPERTIES Contents: • Soil physics • Soil structure • Volume and mass relationships • Water content measurements • Units SOIL PHYSICS: THE STUDY OF THE STATE AND TRANSPORT OF ALL FORM OF MATTER AND ENERGY IN SOILS J (total soil volume) Porosity in soils varies between (sands, silts) to (clays Soils producing crop plants that are toxic because of selenium are confined to small areas, but occur throughout the world.

Such soils are confined to semiarid regions or areas of impeded drainage. They contribute no significant hazard to human health and only locally to animal :// /Selenium-Accumulation-in-Soils-and-Its-Absorption. Introduction.

Selenium (Se) toxicity is a serious threat when an excess of it is found in soils. The effects of intoxication were observed prior to establishing its importance as an essential microelement for animal life and its serious deficiency consequences (Allan et al.,Driscoll and Copeland, ).The importance of Se in animal physiology was first reported inwhen its   Selenium-rich dissolved organic matter determines selenium uptake in wheat grown on low-selenium arable land soils.

Plant and Soil. ;– CrossRef Google Scholar   Correlation of Mehlich 3, Bray 1, and ammonium acetate extractable P, K, Ca, and Mg for Alaska agricultural soils. Commun. Soil Sci. Plant Anal. 18, Schmisek, M.E., L.J. Cihacek and L.J. Swenson Relationship between the Mehlich-III soil test extraction procedure and standard soil test methods in North Dakota.

://   Soil salinity imposes ion toxicity, osmotic stress, nutrient (N, Ca, K, P, Fe, Zn) deficiency and oxidative stress on plants, and thus limits water uptake from soil.

Soil salinity significantly reduces plant phosphorus (P) uptake because phosphate ions precipitate with Ca ions (Bano and Fatima, ). This study reports the Se content in elemental, exchangeable and organic-bound forms by conducting sequential extraction of soil and evaluation of selenium behaviour in soils developed from :// Abstract.

Zinc (Zn) distribution and transport in plants is affected by the level of Zn supply and plant species. When plants have low to adequate Zn supply, Zn concentrations are usually higher in growing tissue than in mature tissue; this is true for roots, vegetative shoots and reproductive :// An average content of selenium in sandy loam soil samples taken from the cm soil layer was mg kg-1, in light loam soils mg kg-1 and in medium loam and clay loam soils mg kg Content of selenium in soils is evaluated based on relationship to human physiological needs and physiological needs of livestock and based on average content of selenium in soils of particular monitored regions.

Gupta, Gupta consider that deficient total content of selenium in soil is lower than Feed produced on soils with content Suggested Citation: "10 Salts and Trace Elements." National Research Council.

Soil and Water Quality: An Agenda for Agriculture. Washington, DC: The National Academies Press. doi: / T he salt content (salinity) of soils and the frequently associated drainage problems are Selenium concentration in the soil generally ranges from mg kg -1 but seleniferous soils usually contain more than 5 mg kg Seleniferous soils have been reported in Ireland, China Variation of the distribution coefficient (Kd) of selenium in soils under various microbial states Article in Journal of Environmental Radioactivity 97() February with Reads   Introduction.

Acid soils, also called ultisols or oxisols, have a pH of or lower; they are widely distributed in tropical and subtropical regions, constituting approximately 30% of the total area of the planet and 50% of the arable land in the world, as well as providing between 25 and 80% of vegetable production (Sade et al., ).Soil acidification can occur due to natural and/or Although the selenium (Se) content in a plant is considered to reflect the content in the soil where the plant grows, the chemical form of the Se absorbed by plants from soils has not yet been   In plants, S content varies strongly between species, ranging from to 6% of dry weight ( to 2 mmol g −1 dry weight).

S belongs to the VIA group of the periodic system, where it is found together with O, Se, Te, and Po; naturally, S is a mixture of four isotopes, 32 S, 33 S, 34 S, and 35 :// In recent years, important relationships have been discovered between many soils and their deficiencies of copper, boron, manganese, molybdenum, iron, cobalt, chromium, selenium, and zinc.

The relationships between soils and deficiencies of phosphorus, potassium, nitrogen, ?cid=nrcsp2_ Soil pollution is defined as the build-up in soils of persistent toxic compounds, chemicals, salts, radioactive materials, or disease causing agents, which have adverse effects on plant growth and animal health [].Soil is the thin layer of organic and inorganic materials that covers the Earth's rocky :// Get this from a library.

Trace elements in soils and plants. [Alina Kabata-Pendias; Henryk Pendias] -- "This new edition highlights the significance of anthropogenic factors in changing the trace element status in soils and plants.

Trace Elements in Soils and Plants, Third Edition incorporates recent The highest levels of toenail selenium content were associated with a 24% reduction in the risk of diabetes [Park ]. Rayman investigates possible associations between selenium supplementation and type 2 diabetes Rayman et al analyzed the data from the UK PRECISE (PREvention of Cancer by Intervention with SElenium) pilot ://   Factor 2 dominated by total content of Fe, Mn, Zn and Cu in soil samples of alfalfa farms or by clay content and EC in soil samples of corn farms accounts for and % of the total variance, respectively.

Table 5: Pearson correlation coefficients between soil properties and trace element in +of+Selenium+and+Trace+Elements+in+some+Arid. Selenium is arguably the naturally occurring trace element of greatest concern worldwide. In excessive amounts it can lead to toxicosis and teratogenesis in animals, while the impact of selenium deficiency can be even more significant.

Contributors from 22 countries explored the connections and inte   The root zone suitability limits for spoil Se at Navajo Mine in northwest New Mexico are currently ppm total Se and ppm hot-water soluble Se. These criteria were largely developed by the Office of Surface Mining using data from the Northern Great   Relationships between Cd concentrations in different vegetables and those in arable soils, and food safety evaluation of vegetables in Taiwan.

Soil Science and Plant Nutrition61 (6), DOI: /   @article{osti_, title = {Selenium toxicity in plants and its detoxification by phosphorus}, author = {Singh, M. and Singh, N.}, abstractNote = {A study was undertaken to determine selenium toxicity and the effect of phosphorus application on selenium in wheat (Triticum aestivum).

Selenium in a compound was applied at 0,5, and 10 ppm to wheat in a greenhouse using sandy ://   Soil Fertility - Past and Present p. 1 Ancient Records p. 2 Soil Fertility During the First Eighteen Centuries A.D. 4 Progress During the Nineteenth Century p.

6 The Development of Soil Fertility in the United States p. 9 Increasing Crop Yields p. 10 Looking to the Twenty-first Century p. 11 Growth and the Factors Affecting It p. Table 1. Content of Various Elements in Soils (Lindsay, ) Metal Al Pdf Mn Cu Cr Pdf Zn As Se Ni Ag Pb Hg Selected Average for Soils mg/kg 71, 38, 30 50 5 40 10 Common Range for Soils mg/kg 10, 7,1 Metals associated with the aqueous phase of soils are ?Dockey=American Society of Agronomy Crop Science Society of America Soil Science Society of America Certified Crop Advisers Log In My Account Due to COVID, our staff is working ://  SELENIUM IN PLANTS EFFECT OF SPECIES Factors ebook the selenium content ebook plants have been reviewed by Johnson et al.

(~. One of the most important of these is the kind of plant. Rosenfeld and Beath () have divided plants into three groups on the basis of their ability to accumulate selenium when grown on high-sele- nium ://