Bulletin of the National Research Centre

Table 1 Mechanical and chemical analysis of the experimental soil sites

From: Role of trehalose on antioxidant defense system and some osmolytes of quinoa plants under water deficit

A. Mechanical analysis:
Sand						Silt 20–0 μ%		Clay < 2 μ%		Soil texture
Course 2000–200 μ%				Fine 200–20 μ%
47.46				36.19		12.86		4.28		Sandy
B Chemical analysis:
pH 1:2.5	EC dSm⁻¹	CaCO₃	OM%	Soluble Cations meq/l				Soluble anions meq/l
				Na⁺	K⁺	Mg⁺	Ca⁺⁺	CO₃⁻⁻	HCO₃⁻	Cl⁻	SO₄⁻⁻
7.60	0.13	5.3	0.06	0.57	0.13	0.92	1.0	0.0	1.25	0.48	0.89
Available nutrients
Macro element ppm				Micro element ppm
N		P		K	Zn	Fe		Mn		Cu
52		12.0		75	0.14	1.4		0.3		0.00

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