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
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:
However, pinewood is characterized by a lower contents of macroelements
in comparison with the other organs (Shcherbenko et al.
(P, Ca, Mg, and K) and microelements (Fe, Zn, Cu, and Mn) determined in a nitric-perchloric digestion procedure (EMBRAPA, 1999) are for the macroelements
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
The most abundant metal among the macroelements
analysed was K followed by Ca, Na and Mg.