essential element

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essential element

or

mineral element

an element without which normal growth and reproduction cannot take place. In plants, there are seven major essential elements: nitrogen, phosphorus, sulphur, potassium, calcium, magnesium and iron. There are also TRACE ELEMENTS required in much smaller quantities, for example, manganese, boron, chlorine. Animals also have requirements for elements, the list being quite similar to that for plants.
References in periodicals archive ?
The aim of this study was to evaluate if ionic strength variation of essentials mineral elements causes differential accumulation of essentials heavy metals in plants of Annona emarginata (Schltdl.
Keywords: Correlation analysis; Mineral elements content; Photosynthesis characteristics; Soja
The inorganic mineral elements present in coal acts as catalysts during coal conversion processes such as liquefaction, gasification and pyrolysis (Tian et al.
Comparing the observed mineral element content to WHO's recommended dietary allowances [30], the chickpea cultivars analysed in this study may provide sufficient amounts of Ca, Fe, Zn, Mn and Cu in human diets and have a potential to meet human dietary requirements in an adequate manner among different age groups.
The present study was under taken to examine the modic effects of salicylic acid and ascorbic acid on mineral elements and leaf proline contents of two drought stressed sunflower hybrids (Hysun-33 and Hysun-38).
It is possible that forage plants grown in pastures grazed by animals may have lower mineral element levels, at least for some minerals, due to leaching soil minerals by water and this deficiency is shown in the plasma minerals profile of ruminants reared in these areas.
In terms of mineral element composition, potassium is the most abundant mineral found in rice followed by magnesium and calcium.
A slatey, mineral element adds complexity and leads to a juicy, clean finish.
This wine has a lovely mineral element that makes it very 'food-friendly'.
Sixteen of the 18 chapters focus on a specific essential mineral element, summarizing critical levels involved in plant disease interactions, the effects of the nutrients on pathogens and plants, and the known mechanisms by which the nutrients suppress plant diseases.