Table 1 The physicochemical properties of soil at the experimental site, Egypt during the growing seasons of 2019 and 2020.
Parameter | Unit | Value | Analytical method used | |
|---|---|---|---|---|
0–30 | 30–60 | |||
Mechanical analysis | ||||
Sand | % | 92.95 | 93.88 | International pipette method Estefan et al.33 |
Silt | % | 3.75 | 4.06 | |
Clay | % | 3.30 | 2.06 | |
Texture | Sand | Soil Survey Staff32 | ||
Chemical analysis | ||||
pH (1:5) | 7.90 | 7.8 | Systronics 372 electrode pH meter in 1: 5 soil–water suspension Janke et al.31 | |
Electrical conductivity (EC) 1:5 at 25 °C | ds m−1 | 0.60 | 0.39 | Systronics 372 electrode EC/ TDS/Salinity meter in 1: 5 soil–water suspension Janke et al.31 |
CaCO3 | % | 8.30 | 6.0 | Titration method Estefan et al.33 |
Available Nitrogen (N) | mg kg−1 | 13.0 | 20.0 | Kjeldahl's method Estefan et al.33 |
Available Phosphorus (P) | mg kg−1 | 6.5 | 6.0 | Spectrophotometer at 410-nm wave length Estefan et al.33 |
Available Potassium (K) | meq l−1 | 0.3 | 0.2 | Flame Photometer Estefan et al.33 |
Magnesium cations (Mg) | meq l−1 | 0.6 | 1.0 | EDTA-disodium salt solution |
Sodium cations (Na) | meq l−1 | 1.0 | 1.1 | Flame Photometer Estefan et al.33 |
Calcium cations (Ca) | meq l−1 | 1.6 | 1.0 | Titration method Estefan et al.33 |
Chloride anions (Cl) | meq l−1 | 1.2 | 1.0 | Mohrs’s titration Estefan et al.33 |
Bicarbonate anions (HCO3) | meq l−1 | 0.3 | 0.2 | Titration method Estefan et al.33 |
Sulfate anions (SO4) | meq l−1 | 1.8 | 2.0 | Barium sulfate (BaSO4) precipitation Estefan et al.33 |
Organic matter | % | 0.01 | 0.1 | Walkley–Black method Estefan et al.33 |
Water status | ||||
Saturation percent | % | 22.0 | 27.0 | Gravimetric method Vaz et al.42 |
Field capacity | % | 11.9 | 13.8 | |
Wilting point | % | 4.9 | 4.8 | |
