macroelement


Also found in: Medical.

macroelement

[¦mak·rō′el·ə·mənt]
(industrial engineering)
An element of a work cycle whose time span is long enough to be observed and measured with a stopwatch.
References in periodicals archive ?
To evaluate the physiological status of second-growth pines on dunes, needle diagnostics was applied with special attention paid to the availability of macroelements vital for tree growth.
2] = 1 - O(h/H), where h, H are the characteristic mesh sizes for the finest elements and for the macroelements, respectively.
Spruce contained low concentrations of macroelements (crude protein, calcium, magnesium, potassium, and phosphorus) and trace elements (aluminum, cadmium, cobalt, copper, iron, manganese, and zinc), thereby minimizing this as a possible explanation for moose browsing.
The contencentration of macroelements in the shoot of date palm:
The concentration of macroelements namely Potassium (K) and Phosphorus (P) and microelements namely Copper (Cu), Manganese (Mn), Iron (Fe) and Zinc (Zn) was estimated using atomic absorption spectrometer [23-25].
In the present paper the distribution of main deposit-forming layers, organic matter, and micro- and macroelements is used as an index of lake development phases.
Malhi SS, Harapiak JT, Gill KS, Flore N (2002) Long-term N rates and subsequent lime application effects on macroelements concentration in soil and in bromegrass hay.
Tokuhara and Mii (1993) stated that the main factors affecting Phalaenopsis micropropagation on a commercial scale are the composition of both macroelements and microelements in the culture medium, coupled with the appropriate combinations and concentrations of a-naphthaleneacetic acid (NAA) and 6-benzylaminopurine (BAP).
Ingestad (1979) reported that optimum growth of several genera of trees occurred at N:P ratios in live foliage ranging from 14 to 30, although these are predicated on the presence of optimal levels of other macroelements as well.
The most abundant metal among the macroelements analysed was K followed by Ca, Na and Mg.