Cover crops | Depth layer | Bulk density | Total porosity | Microporosity | Macroporosity | ||
| (cm) | (mg/m3) | --------------------- (cm3/cm3) ---------------- | ||||
Dry beans | |||||||
Black oats + Forage turnip | 0 - 5 | 1.39Aa* | 0.57 Ab | 0.50 Aa | 0.07 Bb | ||
| 5 - 10 | 1.39 Aa | 0.58 Aab | 0.47 Aa | 0.12 Ab | ||
| 15 - 20 | 1.41 Aa | 0.58 Aa | 0.48 Aa | 0.10 ABa | ||
Forage Turnip | 0 - 5 | 1.38 Aa | 0.55 Ab | 0.44 Bb | 0.11 Ab | ||
| 5 - 10 | 1.41 Aa | 0.58 Ab | 0.46 ABa | 0.11 Ab | ||
| 15 - 20 | 1.38 Aa | 0.58 Aa | 0.49 Aa | 0.09 Aa | ||
Winter fallow | 0 - 5 | 1.13 Bb | 0.65 Aa | 0.38 Bc | 0.27 Aa | ||
| 5 - 10 | 1.15 Bb | 0.62 Aa | 0.42 ABb | 0.20 Ba | ||
| 15 - 20 | 1.37 Aa | 0.55 Ba | 0.45 Ba | 0.10 Ca | ||
Maize | |||||||
Vetch + | 0 - 5 | 1.40 Aa | 0.53 Ab | - | 0.10 Ab | ||
Forage turnip | 5 - 10 | 1.43 Aa | 0.57 Aa | - | 0.11 Ab | ||
| 15 - 20 | 1.42 Aa | 0.58 Aa | - | 0.09 Aa | ||
Vetch | 0 - 5 | 1.30 Aa | 0.59 Aab | - | 0.13 Ab | ||
| 5 - 10 | 1.43 Aa | 0.57 Aa | - | 0.10 Ab | ||
| 15 - 20 | 1.39 Aa | 0.58 Aa | - | 0.11 Aa | ||
Winter fallow* | 0 - 5 | 1.04 Cb | 0.65 Aa | - | 0.28 Aa | ||
| 5 - 10 | 1.20 Bb | 0.60 Aa | - | 0.17 Ba | ||
| 15 - 20 | 1.48 Aa | 0.53 Ba | - | 0.07 Ca | ||
Maize | |||||||
Black oats + Forage turnip | - | - | - | 0.46 a | - | ||
Vetch | - | - | - | 0.47 a | - | ||
Winter fallow | - | - | - | 0.42 a | - | ||
- | 0 - 5 | - | - | 0.42 B | - | ||
- | 5 - 10 | - | - | 0.46 AB | - | ||
- | 15 - 20 | - | - | 0.47 A | - | ||
Soybean | |||||||
Black oats | - | 1.36 a | 0.55 a | 0.47 ab | 0.07 b | ||
Vetch + black oats | - | 1.43 a | 0.57 a | 0.49 a | 0.09 ab | ||
Winter fallow | - | 1.34 a | 0.57 a | 0.42 b | 0.15 a | ||
- | 0 - 5 | 1.31 B | 0.60 A | 0.46 A | 0.14 A | ||
- | 5 - 10 | 1.39 A | 0.55 B | 0.47 A | 0.09 B | ||
- | 15 - 20 | 1.43 A | 0.54 B | 0.45 A | 0.08 B | ||