MINERAL ELEMENTS IN CEREAL GRAINS AND LEGUMES GROWN IN PRINCE EDWARD ISLAND

1987 ◽  
Vol 67 (2) ◽  
pp. 569-572 ◽  
Author(s):  
K. A. WINTER ◽  
U. C. GUPTA

Samples of barley, wheat, clover and alfalfa grown in Prince Edward Island were analyzed for Ca, P, K, Mg, Mo, S, Mn, Zn and Fe. Compared with the requirements for livestock, the cereal grains and forages tended to be low or deficient in several minerals. The need for a suitable trace-mineralized salt in cattle and sheep diets is indicated. Key words: Minerals, trace elements, grains, legumes

2020 ◽  
Vol 28 (1) ◽  
pp. 389-404
Author(s):  
Mirosław Mleczek ◽  
Anna Budka ◽  
Pavel Kalač ◽  
Marek Siwulski ◽  
Przemysław Niedzielski

AbstractIt has been known since the 1970s that differences exist in the profile of element content in wild-growing mushroom species, although knowledge of the role of mushroom species/families as determinants in the accumulation of diverse element remains limited. The aim of this study was to determine the content of 63 mineral elements, divided into six separate groups in the fruit bodies of 17 wild-growing mushroom species. The mushrooms, growing in widely ranging types of soil composition, were collected in Poland in 2018. Lepista nuda and Paralepista gilva contained not only the highest content of essential major (531 and 14,800 mg kg−1, respectively of Ca and P) and trace elements (425 and 66.3 mg kg−1, respectively of Fe and B) but also a high content of trace elements with a detrimental health effect (1.39 and 7.29 mg kg−1, respectively of Tl and Ba). A high content of several elements (Al, B, Ba, Bi, Ca, Er, Fe, Mg, Mo, P, Sc, Ti or V) in L. nuda, Lepista personata, P. gilva and/or Tricholoma equestre fruit bodies belonging to the Tricholomataceae family suggests that such species may be characterised by the most effective accumulation of selected major or trace elements. On the other hand, mushrooms belonging to the Agaricaceae family (Agaricus arvensis, Coprinus comatus and Macrolepiota procera) were characterised by significant differences in the content of all determined elements jointly, which suggests that a higher content of one or several elements is mushroom species-dependent.


1982 ◽  
Vol 62 (3) ◽  
pp. 979-982 ◽  
Author(s):  
M. IVAN ◽  
D. M. VEIRA

Measurements of soluble proportions in the rumen fluid and duodenal digesta and flow into the small intestine of zinc, manganese, copper and iron were carried out in defaunated and faunated sheep. There was no significant (P > 0.05) effect of the defaunation on any measurements. It was concluded that ciliate protozoa do not have a critical role in trace metal metabolism in the rumen of sheep. Key words: Defaunation, sheep, trace elements, solubility


Forests ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 1072 ◽  
Author(s):  
Teresa Enes ◽  
José Aranha ◽  
Teresa Fonseca ◽  
Carlos Matos ◽  
Ana Barros ◽  
...  

Research Highlights: Biomass from Mediterranean agroforestry vegetation may be a potential source of renewable energy. However, due to the high heterogeneity of this type of resource, the study of its characteristics becomes necessary for its efficient use. Objectives: The aim of this study was to evaluate the thermal and chemical properties of 14 different kinds of agroforestry biomass groups: shrubs, forest, and agricultural wastes. Materials and Methods: The higher heating value (HHV), the elemental analysis (C, H, O, N, S), ashes, mineral elements (Na, K, Ca, Mg, and P), trace elements (Mn, Fe, Zn, Ni, Cu, Cr, and Cd) and halogen elements (F and Cl) were quantified and compared with CEN/TS 147775 and CENS/TS 14961 standards, looking forward to future use for energy purposes, namely through combustion processes, as an alternative to fossil fuels. Results: The shrubs present the highest values of higher heating value (20.5 MJ kg−1), followed by the forest wastes (19.2 MJ kg−1) and the lowest in the agricultural wastes (18.5 MJ kg−1). Concerning the elemental analysis, the difference between groups C, H, and O are very small and not statistically significant, while for N, S and ashes values are higher in agricultural than shrubs and forestry wastes. The same tendency was found for the mineral nutrients. For the trace elements, the lowest content of Mn, Fe, and Zn is found in agricultural, Ni, and Cr content in the shrubs and Cu in the forest wastes. The halogen elements are present in greater amount in shrubs than agricultural and forest wastes. Conclusions: Although the high values of the halogen elements which may raise sintering problems and corrosive effect on metal parts in furnace and boiler, in general the shrubs biomass are those with better characteristics for energy uses, namely through combustion processes.


1983 ◽  
Vol 63 (1) ◽  
pp. 133-139 ◽  
Author(s):  
KARL A. WINTER ◽  
UMESH C. GUPTA

Timothy (Phleum pratense L.) samples from 107 sites throughout Prince Edward Island were obtained at the early heading stage and analyzed for Ca, P, K, Mg, Cu, Mo, S, Mn, Zn and Fe. The mean tissue contents of these minerals were: Ca, 0.25%; P, 0.24%; K, 2.12%; Mg, 0.10%; Cu, 4.5 ppm; Mo, 0.37 ppm; S, 0.12%; Mn, 31.1 ppm; Zn, 26.8 ppm and Fe, 30.5 ppm. When compared with the requirements of cattle and sheep Ca would be deficient for most age and production categories and the mean timothy Ca content was lower than published values. The Ca: P ratio was low at approximately 1:1. Mean Mg content of timothy was low relative to animals' requirements, which, combined with the low Ca and high K content of a number of samples, indicated there was a risk of grass tetany in grazing animals. Most trace elements were barely adequate or deficient relative to the needs of cattle and sheep. Copper, for example, at 4.5 ppm is deficient for cattle but lack of deficiency problems was attributed to correspondingly low Mo and S levels. The need for adequate Ca and P supplementation and the use of a suitable trace-mineralized salt is recommended in formulating diets for dairy cattle, beef cattle, and sheep. Key words: Timothy, forage, minerals, deficiency, cattle, sheep


1998 ◽  
Vol 78 (3) ◽  
pp. 425-428 ◽  
Author(s):  
Fiona C. Buchanan ◽  
Tracey D. Thue

Eight ovine and eleven bovine microsatellites were amplified in unrelated individuals from five breeds of sheep and cattle respectively. Polymorphic information content (PIC) was calculated for each breed. It was shown that the common practice of using genotypes from several breeds to calculate PIC for a livestock species can give misleading PIC values for a given breed. Key words: Microsatellite, polymorphic information content


2020 ◽  
Author(s):  
Leila Soudani ◽  
Benchohra Maamar ◽  
Meriem Chafaa ◽  
Belgacem Nouar ◽  
Oliver Wiche

<p>Wastewater treatment always produces a large amount of sludge. The different uses of sludge disposal have negative consequences for the environment. Agricultural use may appear in some situations as an alternative to current solutions, both to optimize the degradation and recycling of organic and mineral elements. During this work, on the one hand, we investigated  the effect of sludge on the growth of turnip (Brassica rapa), a plant that tolerates metallic trace elements, especially lead (Liu et al., 2000) and which is considered a model plant in eco-toxicology (Sun et al., 2010), and on the other hand to determine if it has the potential to be included in phytoremediation systems.</p><p>The seeds were put in different substrates that contained three sludge doses: 20%, 40% and 60%, mixed with agricultural soil  which contained high levels  of metallic trace elements  exceeding the standard eligible concentration  by AFNOR. compared to  the soil, concentrations of potentiall toxic trace elements in sludge were lower than in soil. Morphological measurements were carried out during two months of planting, showing the positive effect of the sludge on the growth of the plant. The recorded biometric values (height, number of leaves, weight, rotation and height of the bulb) for all doses, far exceed those of control plants (100% soil), with high values recorded in the mixture of soil with  60% sludge.</p><p>The concentration of metallic trace elements in the different substrates and also in the leaves and the turnip bulb after two months of planting shows that the plant  accumulates and tolerates hight concentrations of elements  and can therefore be used as a phytoremediator for polluted soils. The highest levels of metal accumulation were observed on the substrate in the  soil mixture  with  60% sludge.</p><p> </p>


1989 ◽  
Vol 69 (4) ◽  
pp. 721-737 ◽  
Author(s):  
G. A. SPIERS ◽  
M. J. DUDAS ◽  
L. W. TURCHENEK

Seven major parent materials from the Athabasca oil sands area were investigated for detailed mineralogy and chemistry. The clay mineral species identified and quantified were mica, smectite, kaolinite, chlorite and vermiculite. The fine (50–250 μm) sand mineralogical suite was dominated by quartz, with lesser amounts of Na-, K-, and Ca-feldspars, and minor amounts of individual heavy mineral species. Electronoptical examination indicated that the feldspar grains in the parent materials have undergone extensive preglacial weathering. Regional mean levels of all analyzed elements (Al, Ca, Fe, K, Mg, Na, Mn, P, Cr, Co, Cu, Ni, Pb, Sr, V, and Zn), with the exception of Ca, are related to textural variability. The variability of Ca levels within the study area is related to the occurrence of calcareous parent materials. The highest levels of all major, minor, and trace elements were associated with either the Legend unit derived largely from Cretaceous bedrock or with the modern sediments of the Athabasca delta. Key words: Soil parent materials, clay mineralogy, trace element levels, sand mineralogy, feldspar morphology


1998 ◽  
Vol 78 (3) ◽  
pp. 449-458 ◽  
Author(s):  
Linnell Edwards ◽  
G. Richter ◽  
B. Bernsdorf ◽  
R.-G. Schmidt ◽  
J. Burney

Cool-period soil erosion from farmland in Prince Edward Island occurs predominantly through rilling mainly due to snowmelt. This is mostly evident on fields coming out of potatoes (Solanum tuberosum L.), a crop that is traditionally cultivated as part of a 2-yr rotation with cereal grains, or a 3-yr rotation with cereal grains and a forage crop for hay. Accurate assessment of snowmelt erosion (associated processes and effects) has been historically constrained by data inadequacy, particularly for rilling; and although a number of models have now been developed for estimating cool-period erosion, they still stand to benefit from the generation of actual field data. In the present study, actual volume measurements were made of erosion forms, for about 80 site-years, after the spring snowmelt in fields at various stages of potato rotation. Cool-period erosion, predominantly rills, amounted to about 30 t ha−1 for 2-yr and 3-yr rotations, thus an annual seasonal average of 15 t ha−1 and 10 t ha−1, respectively. Potato fields left untilled over winter averaged about 20 t ha–1 which increased to 36 t ha−1 with fall ploughing. Sediment deposition in fields coming out of potatoes was 13.3 t ha−1 compared with the amount of 0.4 t ha−1 in fields coming out of forages and 1.6 t ha−1 in fields coming out of grain. Fields going into the winter in sod or stubble showed negligible erosion, averaging about 0.1 t ha−1 in spring. The results of this study demonstrate the dominant influence of cropping practice in the erosion process during the cool period, and the tendency for traditional computational procedures to underestimate soil loss. Key words: Cool-period erosion, rilling, rill volume, sediment deposition, soil-loss prediction, erosion mapping, crop rotation


2002 ◽  
Vol 82 (3) ◽  
pp. 561-565 ◽  
Author(s):  
K. R. Sanderson ◽  
J. B. Sanderson ◽  
U. C. Gupta

Field experiments were carried out in Prince Edward Island to investigate the effect of broadcast and foliar B applications on brown-heart, leaf nutrient content, yield and storage of two rutabaga cultivars (Brassica napabrassica Mill.) at one site in 1994, 1996 and 1997. The two cultivars, York and Thomson Laurentian, were seeded with preplant broadcast B at 0, 2.24, 4.48 and 6.72 kg ha-1. Within each preplant broadcast B treatment, foliar B was applied as Solubor (20.5% B) at 0 and 2.24 kg B ha-1. Foliar B was applied 28 and 42 d after seeding at 1.12 kg B ha-1 at each application. Averaged over these 3 yr, total yield was reduced by broadcast B and foliar B applications. Applications of B increased soil and tissue B levels. Boron was within acceptable levels for plant tissue and soil in all years; however, brown-heart was severe in 1994. On average, the incidence of brown-heart was lower in York than in Thomson Laurentian, and further decreased with increasing rate of B, both broadcast and foliar. Key words: Boron, brown-heart, York, Thomson Laurentian, rutabaga


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