Table 2 Analysis of variance for the effects of tillage and cropping sequence combination treatment and soil depth on soil chemical properties
From: Dryland soil chemical properties and crop yields affected by long-term tillage and cropping sequence
Parameter | Treatment (T) | Soil depth (D) | T × D |
|---|---|---|---|
Olsen-P | ** | *** | *** |
K | *** | *** | * |
Ca | NSa | *** | * |
Mg | NS | *** | * |
Na | *** | *** | * |
SO4–S | ** | * | * |
Zn | NS | *** | * |
Electrical conductivity (EC) | NS | ** | * |
Cation exchange capacity (CEC) | ** | ** | * |
pH | * | ** | * |
Buffer pH | * | ** | * |