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1. Micronutrients and animal nutrition

Author:
Nielsen, Forrest H.
Source:
IFA International Symposium on Micronutrients 23-25 February 2004, New Delhi, India pp. -
Subject:
animal nutrition; dietary minerals; selenium; copper; cobalt; zinc; nickel; manganese; nutrient content; chemical constituents of plants; iron; ruminants
Handle:
10113/46124

2. Trace elements

Author:
Nielsen, Forrest H.
Source:
Encyclopedia of food and culture / Solomon H. Katz, editor in chief ; William Woys Weaver, associate editor pp. -
Subject:
cobalt; vitamin B12; zinc; copper; iron; selenium; boron; human health; homeostasis; human nutrition; chromium; iodine
Handle:
10113/46894

3. The Chemical Composition of Some Pasture and Hay Plants as Affected by Soils and Fertilizers

Author:
B. A. Brown; E. A. Hollowell
Source:
Soil Science Society of America journal 1941 v.5 no.C pp. 131-139
ISSN:
0361-5995
Subject:
Lespedeza; Trifolium pratense; Trifolium repens; acid soils; alfalfa; alkaline soils; aluminum compounds; animals; calcium; chlorine; cobalt; copper; exchangeable calcium; feeds; forage; forage crops; grasses; grazing; hay; heading; iodine; iron; liming; manganese; mature plants; meadows; minerals; minor elements; nitrogen; nitrogen content; nitrogen fertilizers; pH; pastures; phosphorus; potassium; protein content; sodium; soil texture; spring; superphosphate; tillage; vegetative growth; zinc; Northeastern United States
Abstract:
... Discussion and SummaryA few cases have been cited to illustrate the relationship of soils and their fertilization on the chemical composition of hay and pasture. Because of the mixed vegetation usually occurring in meadows and pastures, including the experimental plots, it was necessary to omit references to classic examples of the remarkable variations in the botanical and chemical composition of ...
DOI:
10.2136/sssaj1941.036159950005000C0023x

4. Cobalt content of typical soils and plants of the Hawaiian Islands

Author:
Fujimoto, G.; Sherman, G.D.
Source:
Agronomy journal 1950 v.42 no.12 pp. 577-581
ISSN:
0002-1962
Subject:
agricultural soils; crops; cobalt; nutrient content; livestock; etiology; chemical constituents of plants; wasting syndrome; Hawaii
Abstract:
... Chemical analysis of a number of Hawaiian soils and plants for cobalt reveals the following: The cobalt contents of the soils probably fall in the middle of the range reported for soils in other parts of the world. The values range from 5 to 156 parts per million, and the average for 80 soil samples is 36.1 ppm. The cobalt content is highest in the A horizons and seems to run parallel with the acc ...
DOI:
10.2134/agronj1950.00021962004200120001x

5. Trace Element Distribution in Virgin Profiles Representing Four Great Soil Groups

Author:
J. R. Wright; R. Levick; H. J. Atkinson
Source:
Soil Science Society of America journal 1955 v.19 no.3 pp. 340-344
ISSN:
0361-5995
Subject:
A horizons; B horizons; C horizons; brown podzolic soils; cobalt; copper; forests; leaching; lead; manganese; molybdenum; sesquioxides; zinc
Abstract:
... The purpose of this investigation was to study the distribution and comparative leaching of several trace elements in virgin profiles of the Podzol, Brown Podzolic, Gray-Brown Podzolic and Brown Forest great soil groups. Two profiles of each group were analyzed for total Zn, Pb, Cu, Co, Mn and Mo. The results were compared with those for sesquioxides. The distribution of trace elements was more va ...
DOI:
10.2136/sssaj1955.03615995001900030022x

6. Effects of Cobalt 60 Gamma Radiation on the Physical Properties of Textile Cords

Author:
D.J. Harmon
Source:
Textile research journal 1957 v.27 no.4 pp. 318-324
ISSN:
0040-5175
Subject:
air; cobalt; cotton; fabrics; fiberglass; gamma radiation; melting; nylon; oxygen; rayon; shrinkage; textile fibers
Abstract:
... The effect of various levels of gamma radiation on some of the physical properties of Dacron,¹ nylon, cotton, Orion,² Fiberglas, Celanese X-36, and rayon was measured. Properties studied were flex fatigue, creep rate, melt points, stress strain, and shrinkage tension. In general, the effect of radiation is to worsen the physical properties of the cords evaluated. Some improvement was found in the ...
DOI:
10.1177/004051755702700408

7. The Polarographic Estimation of Sulfydryl and Disulfide Groups in Wool

Author:
J.P.E. Human
Source:
Textile research journal 1958 v.28 no.8 pp. 647-654
ISSN:
0040-5175
Subject:
buffers; cobalt; cysteine; cystine; fabrics; mercuric chloride; pH; polarography; protein hydrolysates; sulfites; sulfur; textile fibers; titration; urea; wool
Abstract:
... Methods for determining sulfydryl sulfur only and sulfydryl plus disulfide sulfur in intact wool are described. In the first case, the wool is allowed to react with an excess of an organic mercurial in a buffer containing urea at pH 7-8.5, while in the second case sulfite as well as urea is present in a buffer at pH 8.5. In both, the excess mer curial is determined polarographically. Two existing ...
DOI:
10.1177/004051755802800802

8. Use of cobalt glass dosimetry in electron beam radiation of foods

Author:
Caldwell, E.F.; Frainey, J.
Source:
Food research : an official publication of the Institute of Food Technologists 1958 v.23 no.6 pp. 599-602
ISSN:
0022-1147
Subject:
food irradiation; cobalt; dose response
DOI:
10.1111/j.1365-2621.1958.tb17610.x

9. Effect of Gamma Radiation on Growth and Metabolism of Microorganisms in an Organic Soil

Author:
G. Stotzky; J. L. Mortensen
Source:
Soil Science Society of America journal 1959 v.23 no.2 pp. 125-127
ISSN:
0361-5995
Subject:
ammonia; carbon dioxide; carbon dioxide production; cobalt; fungi; gamma radiation; irradiation; metabolism; mineralization; nitrogen; organic soils; pH; peat; soil microorganisms
Abstract:
... Samples of Rifle peat were irradiated with gamma rays from a Co⁶⁰ source at doses of 2, 8, 32, 64, 128, and 250 kiloroentgens (kr.). The irradiated samples were incubated for 54 days, and periodic determinations were made on the rate of CO₂ evolution, P and N mineralization, pH changes, and development of bacterial and fungal populations. The radiation doses employed had no significant effect on d ...
DOI:
10.2136/sssaj1959.03615995002300020014x

10. A Study of Extractable Soil Cobalt in Soils of the Southeastern United States

Author:
L. A. Alban; Joe Kubota
Source:
Soil Science Society of America journal 1960 v.24 no.3 pp. 183-185
ISSN:
0361-5995
Subject:
Nyssa sylvatica; Podzols; Regosols; cattle; cobalt; groundwater; leaves; poorly drained soils; sheep; soil sampling; Southeastern United States
Abstract:
... The relationship between 2.5% acetic acid-dithizone extractable soil cobalt and the amount of cobalt in black gum leaves, a cobalt indicator, was investigated for 71 widely distributed soils of the southeastern United States. The soil samples were from both good areas and areas where cobalt deficiency in ruminants would be expected on the basis of previous analyses. The extractable cobalt values a ...
DOI:
10.2136/sssaj1960.03615995002400030017x

11. Cobalt Reactions with Montmorillonite

Author:
J. F. Hodgson
Source:
Soil Science Society of America journal 1960 v.24 no.3 pp. 165-168
ISSN:
0361-5995
Subject:
acetic acid; ammonium; calcium; calcium chloride; cobalt; copper; magnesium; montmorillonite; zinc
Abstract:
... Specific reactions between montmorillonite and Co in low concentrations were studied in the presence of excess CaCl₂. Two forms of bound Co were distinguished. One form, characterized as being slowly dissociable, appears to be bound in a monolayer by chemisorption and will exchange with Cu⁺⁺, Zn⁺⁺, or other Co⁺⁺ and to a lesser extent with ions of other transition metals but not with Ca⁺⁺, Mg⁺⁺, o ...
DOI:
10.2136/sssaj1960.03615995002400030013x

12. Studies on the inactivation of type A Clostridium botulinum toxin by irradiation with cobalt 60

Author:
Wagenaar, R.O.; Dack, G.M.
Source:
Journal of food science 1960 v.25 no.2 pp. 279-284
ISSN:
0022-1147
Subject:
cheeses; Clostridium botulinum; toxins; chemical degradation; food irradiation; dose response; cobalt; isotopes
DOI:
10.1111/j.1365-2621.1960.tb00332.x

13. Cobalt Uptake by Plants from Cobalt Impregnated Soil Minerals

Author:
Alina Kabata; Kenneth C. Beeson
Source:
Soil Science Society of America journal 1961 v.25 no.2 pp. 125-128
ISSN:
0361-5995
Subject:
Dactylis glomerata; bentonite; cobalt; crops; hematite; hydrochloric acid; kaolin; muscovite; soil; soil minerals; soil solution; sorption; water solubility
Abstract:
... A water-soluble Co salt applied to soils will result in a greatly increased uptake by crop plants for a short period. Although most of this Co is retained in the soil it gradually becomes unavailable and its effect may entirely disappear within 10 years. Since soil minerals are important factors in the Co supply to the soil solution the relative uptake of Co from substrates containing Co-impregnat ...
DOI:
10.2136/sssaj1961.03615995002500020017x

14. The Relationship of Soils to Molybdenum Toxicity in Cattle in Nevada

Author:
Joe Kubota; Victor A. Lazar; L. N. Langan; Kenneth C. Beeson
Source:
Soil Science Society of America journal 1961 v.25 no.3 pp. 227-232
ISSN:
0361-5995
Subject:
Cyperaceae; alfalfa; cattle; cobalt; copper; floodplains; forage; grasses; high water table; lithology; molybdenum; poorly drained soils; soil properties; toxicity; valleys; Nevada
Abstract:
... The relationship of soil factors associated with reported areas of Mo toxicity in cattle in seven agriculturally important valleys in Nevada was investigated. The level of Mo in the plant was selected as a measure of the soil factors, but Cu, Co, S and P were also determined in a large number of the forage samples. The Mo content varied both with plant species and soils. Under Nevada conditions, a ...
DOI:
10.2136/sssaj1961.03615995002500030025x

15. Soil Colloids as a Factor in the Uptake of Cobalt, Cesium, and Strontium by Plants

Author:
E. R. Graham; D. D. Killion
Source:
Soil Science Society of America journal 1962 v.26 no.6 pp. 545-547
ISSN:
0361-5995
Subject:
Secale cereale; adsorption; calcium chloride; cesium; clay; cobalt; colloids; gardens; illite; kaolin; kaolinite; montmorillonite; nuclides; nutrients; peas; peat; radioactivity; rye; sand; soil; soil colloids; soybeans; strontium
Abstract:
... A study of the uptake of Co, Cs, and Sr by rye, garden peas, and soybeans showed that the amount of these elements harvested, as well as the concentration in the plants, varied with the nature of the soil colloid on which they were grown. Illite, kaolinite, montmorillonite, peat (fibrous), peat (sedimentary), and Putnam clay were Ca-saturated, mixed with nutrients and sand; and treated with known ...
DOI:
10.2136/sssaj1962.03615995002600060010x

16. The Effect of Soil Moisture Content Upon the Uptake of Molybdenum, Copper, and Cobalt by Alsike Clover

Author:
Joe Kubota; E. R. Lemon; W. H. Allaway
Source:
Soil Science Society of America journal 1963 v.27 no.6 pp. 679-683
ISSN:
0361-5995
Subject:
Trifolium hybridum; brown podzolic soils; cobalt; copper; greenhouse experimentation; molybdenum; soil solution; soil water; soil water content; water content; Nevada; New Hampshire
Abstract:
... The effect of soil moisture level on the uptake of Mo, Cu, and Co by alsike clover was investigated in a greenhouse experiment with two Brown Podzolic soils from New Hampshire and a Weisenboden and a Brown soil from Nevada. A wet soil condition increased the Mo in the soil solution and plant Mo content on all four soils. The Co concentration in the soil solution was higher in pots maintained at th ...
DOI:
10.2136/sssaj1963.03615995002700060033x

17. Cobalt Content of New England Soils in Relation to Cobalt Levels in Forages for Ruminant Animals

Author:
Joe Kubota
Source:
Soil Science Society of America journal 1964 v.28 no.2 pp. 246-251
ISSN:
0361-5995
Subject:
brown podzolic soils; clay; cobalt; forage; grasses; groundwater; legumes; mountains; ruminants; sand; sandy loam soils; silt loam soils; Maine; Massachusetts; New England region; New Hampshire
Abstract:
... The Co content of soils and common forage plants was low and related to reported areas of Co deficiency in ruminant animals in two extensive areas of granitic drift deposits in New England. One of the areas extends from southestern Maine to southeastern New Hampshire, encompassing an area mantled by granitic drifts from the White Mountains. The other area occurs in southeastern Massachusetts and i ...
DOI:
10.2136/sssaj1964.03615995002800020035x

18. The Influence of Fluoride, Temperature, Calcium, and Alcohol on the Reaction of Cobalt With Montmorillonite

Author:
J. F. Hodgson; H. R. Geering; Martha Fellows
Source:
Soil Science Society of America journal 1964 v.28 no.1 pp. 39-42
ISSN:
0361-5995
Subject:
adsorption; alcohols; calcium; cations; cobalt; endothermy; fluorides; heat; heavy metals; hydrolysis; metal ions; moieties; montmorillonite; temperature
Abstract:
... Pretreatment of montmorillonite with F interferes with the adsorption of Co by montmorillonite. Since the effect is reversible with base, the F is thought to replace surface hydroxyl groups that serve as the adsorption sites for Co. The Co reaction with these sites increases with temperature, indicating that the reaction is endothermic. Therefore, either heat is required to form the Co-to-surface ...
DOI:
10.2136/sssaj1964.03615995002800010025x

19. The Role of Hydrolysis in the Reaction of Heavy Metals with Soil-Forming Materials

Author:
J. F. Hodgson; K. G. Tiller; Martha Fellows
Source:
Soil Science Society of America journal 1964 v.28 no.1 pp. 42-46
ISSN:
0361-5995
Subject:
adsorption; calcium chloride; clay; cobalt; heavy metals; hydrolysis; ionic strength; ions; magnesium; montmorillonite; protons
Abstract:
... The proposition that hydrolysis may account for the selective adsorption of heavy metals by clay surfaces is compared with an alternate explanation of specific exchange of the metal with weakly dissociable H⁺. It is shown that past evidence offered in support of the two hypotheses is somewhat ambiguous. Theoretical treatment is presented for the competition of ions in adsorption reactions which pr ...
DOI:
10.2136/sssaj1964.03615995002800010026x

20. Concentration of Micronutrients in Foliage of Three Coniferous Tree Species in British Columbia

Author:
J. D. Beaton; G. Brown; R. C. Speer; I. MacRae; W. P. T. McGhee; A. Moss; R. Kosick
Source:
Soil Science Society of America journal 1965 v.29 no.3 pp. 299-302
ISSN:
0361-5995
Subject:
Pinus contorta var. latifolia; Pseudotsuga menziesii var. menziesii; Tsuga heterophylla; aluminum; cobalt; copper; iron; leaves; manganese; molybdenum; rivers; silicon; trees; zinc; British Columbia
Abstract:
... Foliage samples were secured from the upper-one third of the crowns of Douglas fir (Pseudotsuga taxifolia P.), lodgepole pine. (Pinus contorta D.), and western hemlock (Tsuga heterophylla R.) trees. Needles of the 1961, 1962, and 1963 growth were obtained with the exception of western hemlock samples at Gold River where only the current growth was collected. The needles were analyzed for the micro ...
DOI:
10.2136/sssaj1965.03615995002900030022x