Effects of Bio-Organic Fertilizer on Soil Infiltration, Water Distribution, and Leaching Loss under Muddy Water Irrigation Conditions

This study analyzes the soil water infiltration characteristics under muddy irrigation and bio-organic fertilizer conditions in current context of rarely being used agricultural production combination with problems resource shortages low fertility arid semi-arid regions. An indoor one-dimensional column device was for studying effects four sediment concentration levels (ρ0: 0; ρ1: 4%; ρ2: 8%; ρ3: 12%) (FO0: FO1: 2250 kg·hm−2; FO2: 4500 sFO3: 6750 kg·hm−2) on infiltration, evaporation characteristics, leaching loss. The results demonstrated that a higher fertilization level resulted smaller wetting front distance cumulative amount within same time, but reduction rate (η) gradually increased. three models (Kostiakov, Philip, Horton) were fitted, it discovered all had good fitting (R2 > 0.8), Kostiakov model displaying best fit Horton exhibiting worst fit. time consistent Black Rose 0.9), proved to be than model. In comparison ρ0, increased conductivity total dissolved solids (TDS) solution, reduced evaporation, moisture content, uniformity coefficient distribution, solution volume. Compared FO0, application content while also reducing volume, conductivity, TDS solution. this research can provide scientific reference efficient utilization rational fertilizer.