Bioelements and heavy metals in dry and wet depositions at some localities in the morava river basin

1996 ◽  
Vol 33 (4-5) ◽  
pp. 277-283
Author(s):  
E. Kocková ◽  
M. Palát ◽  
M. Betušová
Keyword(s):  
Dry Matter ◽  
Sodium Potassium ◽  
Liquid Component ◽  
Nickel Chromium ◽  
Calcium Magnesium ◽  
Morava River ◽  
Lead Nickel ◽  
Nitrogen Phosphorus ◽  
Copper Lead ◽  
Morava River Basin

Bioelements contained both in liquid and solid fall-out appear to be one of the potential sources of surface water pollution or effects on the landscape. The aim of the several-year monitoring consists in determining differences in the content of these components in particular localities of our region. To compare results, the methods of taking the samples as well as procedures in their processing were maintained although there are changes in the development and use of the methods. Due to technical reasons, it was not possible to separate liquid and solid components earlier than at two-month intervals. In spite of this, we use terms liquid and solid fall-out in determining the results although some small changes can occur in the liquid component. In comparing results of analyses from particular localities, it is necessary to take into account also the direction of prevailing winds which can help in identifying sources of air-borne components in fall-outs. All the fallout station localities were situated in such a way sources from the immediate vicinity to be eliminated. Sample analyses are aimed at general characteristics, i.e. dry matter, ash, water and macroelements (nitrogen, phosphorus, calcium, magnesium, sodium, potassium, iron, aluminium, manganese) and microelements (boron, zinc, molybdenum, copper, lead, nickel, chromium, cadmium and mercury). At present, the measurements continue and results obtained are processed.

Growing season changes in the concentration and distribution of macroelements in Willamette red raspberry plant parts

1994 ◽  
Vol 74 (4) ◽  
pp. 833-839 ◽  
Author(s):  
C. G. Kowalenko
Keyword(s):  
Dry Matter ◽  
Rubus Idaeus ◽  
Tissue Analysis ◽  
Plant Analysis ◽  
Red Raspberry ◽  
Plant Parts ◽  
Fertilizer Recommendations ◽  
Calcium Magnesium ◽  
Nitrogen Phosphorus ◽  
Key Words Nitrogen

Nitrogen, P, K, Ca, Mg and Na concentrations and accumulations in Willamette red raspberry (Rubus idaeus L.) plant parts were measured in a field study to identify a potential plant-analysis-based method for evaluating site-specific fertilizer requirements. Dry matter and macroelements accumulated steadily in new canes over the season, increased early to a stable amount in floricane laterals and ripe berries, increased and then decreased in leaves and remained stable in stems. Macroelement accumulation patterns were generally similar to dry matter accumulations. The amounts of N and K that accumulated in ripe berries were similar and about eight times greater than P, Ca and Mg. Macroelement concentrations of floricane stems, laterals and berries were more stable than in leaves, making them potentially more suitable than leaves for developing tissue analysis for fertilizer recommendations. Key words: Nitrogen, phosphorus, potassium, calcium, magnesium, sodium, Rubus idaeus

scholarly journals Effect of black point disease on quality of wheat grain

1970 ◽  
Vol 34 (2) ◽  
pp. 181-187 ◽  
Author(s):  
PK Malaker ◽  
IH Mian ◽  
KA Bhuiyan ◽  
MMA Reza ◽  
MA Mannan
Keyword(s):  
Fungal Pathogens ◽  
Dry Matter ◽  
Bipolaris Sorokiniana ◽  
Wheat Grain ◽  
Mineral Contents ◽  
Black Point ◽  
Nutrient Contents ◽  
Calcium Magnesium ◽  
Nitrogen Phosphorus

An experiment was conducted to determine the effect of different levels of black point infection caused by Bipolaris sorokiniana and other fungal pathogens on some quality characters of wheat grain. Wheat grains were graded on a 0-5 scale based on levels of black point infection. Quality characters of grain viz., protein, fat, dry matter, ash and mineral contents under different grades were determined following standard methods. The dry matter and ash contents of grain decreased while the contents of protein and fat increased with the increasing severity of black point infection. The observations on macro and micro nutrient contents of grain indicated that the amount of nitrogen, phosphorus, calcium, magnesium, sulphur, and boron increased, whereas the contents of potassium, iron, zinc, copper and sodium decreased with the increase of black point infection. However, the reductions in copper content of black point affected grains under different grades of infection were not significant as compared to apparently healthy grains. Key Words: Black point; Bipolaris sorokiniana; grain quality; wheat. DOI: 10.3329/bjar.v34i2.5789Bangladesh J. Agril. Res. 34(2) : 181-187, June 2009

Studies of the chemical composition of kales and rapes. II. The rapes

1959 ◽  
Vol 52 (2) ◽  
pp. 238-243 ◽  
Author(s):  
D. J. C. Jones
Keyword(s):  
Dry Matter ◽  
Winter Period ◽  
Crude Fibre ◽  
Sodium Potassium ◽  
Total Sulphur ◽  
Organic Sulphur ◽  
Whole Plant ◽  
Sulphate Sulphur ◽  
Calcium Phosphorus ◽  
Calcium Magnesium

1. Three varieties of giant rape, two broad leaved Essex rapes, Hungry Gap Kale and Rape-Kale, were grown at two centres in mid-Wales. They were sampled in the early winter period and the samples divided into separate leaf and stem samples. These samples were used to calculate leaf to stem ratios on a green and dry-matter basis.2. The levels of the proximate constituents, silica, calcium, magnesium, phosphorus, sodium, potassium, chlorine, total sulphur, sulphate sulphur and ‘organic’ sulphur were determined in the dried samples. Whole plant values were calculated from the leaf and stem values with the appropriate leaf to stem ratios.3. The leaf values for ether extract, crude protein, silica-free ash, silica, calcium, phosphorus, magnesium, chlorine, total sulphur and ‘organic’ sulphur are higher than the corresponding stem values. For dry matter, crude fibre, nitrogen-free extractives and sodium the reverse is found, whilst for sulphate sulphur there is no definite distribution.4. There are no significant differences in composition between the main groups of varieties, and the rape-type kales are very similar to the other rapes in this respect.

The effect of field drying on the concentrations of some major elements in herbage

1986 ◽  
Vol 107 (1) ◽  
pp. 9-13 ◽  
Author(s):  
D. Wilman ◽  
Nthoana Mzamane
Keyword(s):  
White Clover ◽  
Dry Matter ◽  
Major Elements ◽  
Maturity Level ◽  
Nitrogen And Phosphorus ◽  
Calcium Magnesium ◽  
Calcium And Magnesium ◽  
Two Stages ◽  
Late Stages ◽  
Nitrogen Phosphorus

SUMMARYHerbage from a grass-white clover sward was dried in the field to the hay stage (≤ 0·33 g moisture/g dry matter) at three times of year in 2 years comparing, in each case, all combinations of two stages of maturity, two levels of applied nitrogen and two thicknesses of swath. Samples taken at intervals during drying were analysed for nitrogen, phosphorus, potassium, calcium, magnesium and sodium.When there was little or no rain during drying, there was no change in the concentration of any of the six elements in the herbage dry matter between cutting and the hay stage, whatever the stage of maturity, level of N applied or swath thickness.The concentrations of potassium and sodium in the crop were greatly reduced by rain in the later stages of drying, but were less affected by rain in the early and middle stages; the concentrations of calcium and magnesium appeared to be reduced by rain as readily in the middle as in the later stages; the concentrations of nitrogen and phosphorus were relatively little affected by rain, but seemed likely to be more at risk in the later stages. The extent of the reductions in the concentration of elements was not markedly affected by the stage of maturity or level of N applied. There were reductions in the thin but not in the thick swaths when rain fell during the early and middle stages of drying, probably partly or wholly because the herbage in the thin swaths was drier, with a higher proportion of dead cells, at that time than the herbage in the thick swaths. At least 70 kg K/ha was leached out of the crop in the thick swaths by rain in the late stages of drying.

scholarly journals Growth, nutrient concentration, nutrient accumulation and visual symptoms of nutrient deficiencies in cherry tomato plants

2019 ◽  
Vol 40 (2) ◽  
pp. 585
Author(s):  
Janini Tatiane Lima Souza Maia ◽  
Hermínia Emília Prieto Martinez ◽  
Junia Maria Clemente ◽  
Marilia Contin Ventrella ◽  
Carla do Carmo Milagres
Keyword(s):  
Nutrient Solution ◽  
Dry Matter ◽  
Nutrient Concentration ◽  
Soil Conditions ◽  
Cherry Tomato ◽  
Tomato Plants ◽  
Visual Symptoms ◽  
Calcium Magnesium ◽  
Copper Zinc ◽  
Nitrogen Phosphorus

Tomato is one of the most popular vegetables, with high nutrient demand. The nutrient concentration can vary depending on the development phase, cultivation system, temperature, soil conditions, luminosity, relative humidity and management practices. The aim of this work was to characterize cherry tomato visual symptoms of deficiency, as well as the effect of nutritional restriction on the development and nutrient concentration of plants cultivated in nutrient solution. Plants of the cherry tomato, cultivar Sindy, were grown in green house. We have used eleven treatments, one control with complete nutrient solution and the other ten omitting respectively the nutrients nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, copper, zinc and iron. The experiment was performed in randomized design with three repetitions. After 60 days, the plants were removed from the solutions and their main symptoms were photographed and described. The traits evaluated were: total dry matter yield, dry matter of leaves, dry matter of stems and dry matter of roots; number of leaves, number of inflorescences; number of fruits and root volume. The concentration and accumulation of nutrients: nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, copper, zinc and iron in leaves, stems and roots were evaluated. Nutrient concentration and accumulation were influenced by the deficiencies imposed. The visual symptoms of deficiency that had appeared firstly were those of phosphorus, boron and iron, respectively. The omissions of the nutrients nitrogen, magnesium and boron were the ones that most compromised the dry matter production of the cherry tomato plants.

scholarly journals Coffee Brews: Are They a Source of Macroelements in Human Nutrition?

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1328
Author(s):  
Ewa Olechno ◽  
Anna Puścion-Jakubik ◽  
Katarzyna Socha ◽  
Małgorzata Elżbieta Zujko
Keyword(s):  
Magnesium Deficiency ◽  
Human Nutrition ◽  
Google Scholar ◽  
Sodium Potassium ◽  
Factors Influencing ◽  
Coffee Brew ◽  
Coffee Grounds ◽  
Calcium Magnesium ◽  
Coffee Brews

Coffee brews, made by pouring water on coffee grounds or brewing in an espresso machine, are among the most popular beverages. The aim of this study was to summarize data on the content of macroelements (sodium, potassium, calcium, magnesium, and phosphorus) in coffee brews prepared with different methods, as well as to review the factors influencing the content of the elements. Studies from 2000 to 2020, published in the PubMed and Google Scholar databases, were reviewed. Taking into account the results presented by the authors, we calculated that one portion of coffee brew can cover 7.5% or 6.4% (for women and men) and 6.6% of the daily requirement for magnesium and potassium, respectively. Coffee provides slightly lower amounts of phosphorus (up to 2.2%), sodium (up to 2.2%), and calcium (up to 0.7% of the daily requirement for women and 0.6% for men). If coffee is drunk in the quantity of three to four cups, it can be an important source of magnesium, considering the risk of magnesium deficiency in modern societies.

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