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  • Articles  (9)
  • Zinc  (9)
  • 1985-1989  (9)
  • 1950-1954
  • 1945-1949
  • 1985  (9)
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (9)
  • Sociology
Collection
  • Articles  (9)
Source
Keywords
Publisher
Years
  • 1985-1989  (9)
  • 1950-1954
  • 1945-1949
Year
Topic
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (9)
  • Sociology
  • Biology  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Mobilisation of Cu, Mn and Zn in the soil solutions of barley rhizospheres (1985)
    Springer
    Plant and soil 86 (1985), S. 147-149 
    Details
    ISSN: 1573-5036
    Keywords: Barley ; Copper ; Manganese ; Rhizosphere ; Soil solution ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary We report data showing changes during the growing season in the concentrations of manganese, zinc and copper in the rhizosphere in soil solutions of barley plants. Substantial mobilisation of these trace elements occurred during the early stages of rhizosphere development so that soil solution concentrations increased three fold for the copper and zinc and fifteen fold for manganese.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02185036
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  • 2
    Electronic Resource
    Electronic Resource
    Zinc sources for rice in soil at different moisture regimes and organic matter levels (1985)
    Springer
    Plant and soil 87 (1985), S. 393-404 
    Details
    ISSN: 1573-5036
    Keywords: Moisture regime ; Organic matter ; Rice ; Soil ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Laboratory incubation experiment was conducted with a clay loam alluvial lowland rice soil to study the relative effectiveness of two sources of Zn (ZnEDTA and ZnSO4) in maintaining Zn availability in soil under two moisture regimes (saturated and waterlogged) both in presence as well as absence of added organic matter. The results showed that ZnEDTA was always more effective than ZnSO4 in maintaining higher amount of zinc in available form in soil for a longer perid. Results of greenhouse experiment conducted with rice showed that concentration and uptake of Zn by roots were generally higher with ZnEDTA than with ZnSO4 both in presence and absence of added organic matter, whereas in respect of shoot this was true only in absence of added organic matter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02181906
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  • 3
    Electronic Resource
    Electronic Resource
    Optimum utilization of sewage sludge of low and high metal content for grain production on arid lands (1985)
    Springer
    Plant and soil 88 (1985), S. 321-332 
    Details
    ISSN: 1573-5036
    Keywords: Cadmium ; Copper ; Diagnostic tissues ; Heavy metals ; Iron ; Nickel ; Plant uptake ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Two municipal sludges, one from a highly industrialized city, Chicago, Il, and another from a little industrialized, highly agricultural area, Tucson, AZ are compared for winter barley production on Pima c 1 (Typic torrifluvent). Both sludges were responsible for highly significant additions of Zn, Cu, Ni, Cd and P to the soil each year when applied at the rates of 100 mt/ha singly and 20 mt/ha each year for 4 years. Nitrogen responses for barley straw and grain were observed from both sludges. Tucson sludge appears to be attractive as a potential fertilizer, not only as an NPK source, but also for its organic matter and minimal amounts of heavy metals. The Chicago sludge with relatively high levels of heavy metals, particularly Cd, appears poorly suited as a fertilizer, if used for an extended period of time, because of the plant's tendency to take up elevated levels of certain heavy metals. Some parts of barley plants proved to be a better indicator of heavy metal uptake and concentration than others. The diagnostic-tissue test promises to be a useful tool to warn against undesirable accumulation of heavy metals. Fortunately, when compared with other plant parts, the heavy metal in grain was the least altered as a result of continued sewage sludge use on arid land. The soil's neutral to slightly alkaline pH and the presence of lime throughout the soil profile appeared to be critical factors in keeping plant uptake of heavy metals relatively low as compared with soils of other climates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02197489
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of zinc supply on growth of three species of Eucalyptus seedlings and wheat (1985)
    Springer
    Plant and soil 88 (1985), S. 377-384 
    Details
    ISSN: 1573-5036
    Keywords: Carbonic anhydrase ; Dry matter ; Eucalyptus maculata ; E. marginata ; E. patens ; Seedlings ; Symptoms ; Triticum aestivum ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Effects of zinc supply on shoot and root dry weight, root length, zinc concentrations and carbonic anhydrase activity were measured in 52 day old seedlings ofEucalyptus maculata, E. marginata, E. patens and wheat grown in a zinc deficient soil in the glasshouse. Symptoms of zinc deficiency in the eucalyptus and wheat appeared within 20 to 35 days. Eucalypt seedlings had short internodes and small necrotic leaves, reduced dry weight of shoots and roots, root length and zinc concentrations in young leaves; the measurable level of leaf carbonic anhydrase activity decreased to zero. Similar responses also occurred in wheat. The level of zinc fertilizer required for normal growth of Eucalyptus seedlings is therefore likely to be similar to that used for wheat and other agricultural crops.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02197494
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  • 5
    Electronic Resource
    Electronic Resource
    Influence of waterlogging on availability and uptake of heavy metals by oat grown in different soils (1985)
    Springer
    Plant and soil 88 (1985), S. 45-56 
    Details
    ISSN: 1573-5036
    Keywords: Availability ; Cadmium ; Copper ; Iron Lead ; Manganese ; Oat ; Uptake ; Waterlogging ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The influence of waterlogging on availability and uptake of cadmium, lead, zinc, copper, manganese and iron by oat was studied. The experiments were carried out as a pot experiment using a sandy loam, a sandy soil and an organic soil and with waterlogging for 21 days in the period of growth. Selective extractants were used to remove metals held in different soil fractions. Waterlogging resulted in the release of manganese and iron from the oxide bound reservoirs to the soluble, exchangeable and inorganic reservoirs, and increase in cadmium, lead and zinc in the inorganic reservoir was observed. Only small effects on the availability of copper was observed. Manganese and iron concentrations increased in all plant parts except iron in the grain. Cadmium, lead and copper concentrations increased in the roots, while cadmium, lead, zinc and copper concentrations decreased in the leaves. With few exceptions the total uptake of manganese and iron increased, while the total uptake of cadmium, lead, zinc and copper decreased during waterlogging. The total uptake was for all metals except cadmium lowest from the organic soil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02140665
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  • 6
    Electronic Resource
    Electronic Resource
    Uptake of six heavy metals by oat as influenced by soil type and additions of cadmium, lead, zinc and copper (1985)
    Springer
    Plant and soil 88 (1985), S. 57-69 
    Details
    ISSN: 1573-5036
    Keywords: Availability ; Cadmium ; Copper ; Iron ; Lead ; Manganese ; Oat ; Uptake ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The influence of heavy metal additions on availability and uptake of cadmium, lead, zinc, copper, manganese and iron by oat was studied. The experiments were carried out as pot experiments using sandy loam, sandy soil and organic soil. Selective extractants were used to remove metals held in different soil fractions. Lead and copper were preferently bound by organics and oxides, zinc by oxides and inorganics, and cadmium by inorganics and organics. Addition of cadmium to the soils resulted in higher cadmium concentrations in all plant parts but lower concentrations of lead, zinc, copper, manganese and iron, and the accumulation indexes of these metals were also lower when cadmium was added to the soil. Addition of cadmium plus lead, zinc and copper resulted in higher cadmium concentrations in leaves and straw of plants grown in sandy loam and sandy soil, but lower concentrations when plants were grown in organic soil as compared with the results when cadmium was added separately. The transfer of cadmium, lead, zinc and copper from soil to plant was greatest from sandy soil, and zinc and cadmium were more mobile in the plant than were lead and copper. Cadmium concentrations in leaves correlated significantly with CaCl2 and CH3COOH extractions in sandy loam and sandy soil and with CH3COOH extractions in organic soil. Generally, the total metal uptake was lowest from organic soil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02140666
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  • 7
    Electronic Resource
    Electronic Resource
    Influence of washing on elemental analysis of leaves of fieldgrown crop plants (1985)
    Springer
    Plant and soil 88 (1985), S. 93-100 
    Details
    ISSN: 1573-5036
    Keywords: Aluminum ; Calcium ; Copper ; Glycine max ; Iron ; Magnesium ; Manganese ; Nitrogen ; Phosphorus ; Potassium ; Sorghum bicolor ; Triticum aestivum ; Zea Mays ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Information is limited on soil contamination of leaves from field-grown row crops, especially with respect to aluminum (Al) analyses. The objective of this study was to determine the influence of washing leaf samples with either deionized water or detergent solution on elemental analyses for several agronomic crop plants. The crop plants sampled were corn (Zea mays L.), soybean (Glycine max L. Merr.), grain sorghum (Sorghum bicolor L. Moench), and wheat (Triticum aestivum L.). The crops were grown on a range of soil types, soil pH values, and tillage practices. Samples of upper leaves and lower leaves were collected separately. The samples were either not washed, washed with deionized water, or washed with detergent solution. After drying, grinding, and digesting, the samples were analyzed for Al, nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), manganese (Mn), zinc (Zn), and copper (Cu). For all crop plants and conditions studied, there was no effect on measured N, P, K, Ca, Mg, Mn, Zn, or Cu concentrations, but measured Al and Fe concentrations were influenced by washing. In general, washing had a greater effect on Al analyses than on Fe analyses. Soybean samples were most affected by washing, while wheat samples seemed to be least affected. The results reflected greater contamination of lower leaves than upper leaves. Decontamination procedures appear necessary prior to Al and Fe analyses of field-grown crop plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02140668
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  • 8
    Electronic Resource
    Electronic Resource
    Distribution of N, P, K, Ca, Mg, S, Zn, Fe, Mn and Cu in groundnut (1985)
    Springer
    Plant and soil 84 (1985), S. 269-273 
    Details
    ISSN: 1573-5036
    Keywords: Calcium ; Copper ; Groundnut ; Iron ; Kernel ; Kharif ; Leaflet ; Magnesium ; Manganese ; Nitrogen ; Petiole ; Phosphorus ; Potassium ; Root ; Shell ; Stem ; Sulphur ; Summer ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Concentration of N, P, K, Ca, Mg and S in summer groundnut crop was higher than in kharif while Zn, Fe, Mn and Cu contents were higher in summer crop. Kernel's N, P and Zn; Leaflet's Ca and Mn; Stem's K and Fe; Root's S and Cu and Petiole's Mg contents were highest. Shell's N, P, K, Mg, S, Zn and Cu; Kernel's Ca, Fe and Mn contents were the least. N, P, K, S, Zn and Cu concentrations decreased linearly as the crop grew. Ca, Mg, Fe and Mn concentrations did not display any distinct pattern. Ca concentration was positively correlated with pod yield in both the seasons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02143189
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  • 9
    Electronic Resource
    Electronic Resource
    Effect of zinc fertilization on the mineral nutrition of rices differing in tolerance to zinc deficiency (1985)
    Springer
    Plant and soil 87 (1985), S. 319-327 
    Details
    ISSN: 1573-5036
    Keywords: Copper ; Iron ; Magnesium ; Manganese ; Mineral nutrition ; Nutrient translocation ; Phosphorus ; Rice ; Varietal tolerance ; Zinc ; Zinc fertilization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The effects of four Zn levels on the electrochemical and chemical properties of the soil solution, and on the growth and mineral nutrition of two rice varieties (IR26 and IR34) differing in tolerance to Zn deficiency were studied in the greenhouse using Zn-deficient soils from two locations. A similar experiment was conducted in culture solution to check how Zn addition affects translocation of other nutrients. In both soil and culture solution, plant Zn concentrations alone was not enough to account for varietal tolerance to Zn deficiency. Comparison of nutrient to Zn and shoot to root ratios of nutrients was more useful in determining the possible mechanism of varietal tolerance. IR 34 appeared to tolerate the disorder due to its lower Zn requirement, more efficient Zn translocation and ability to maintain lower Fe/Zn, Cu/Zn, Mg/Zn and P/Zn ratios in the shoot than the more susceptible variety, IR26. This was shown to be due to decreased translocation of Fe, Mg and P to shoots and decreased absorption of Cu by the root in IR34 in culture solution studies. Adding Zn further reduces translocation or absorption of these nutrients and depending on the nutrient supply of the soil, could cause deficiencies or mineral imbalances, especially of Fe, Cu, and P. These observed varietal differences regarding Zn requirement and the interaction of Zn with absorption and translocation of plant nutrients necessitates revision of recommendations for Zn fertilization. There is an inevitable need for Zn application in severely Zn-deficient soils regardless of rice variety. But on marginally Zn-deficient soils especially those low in Fe, Cu, or P, Zn fertilization is not advisable when resistant rice varieties are used.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02181899
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