Redistribution of Slurry Components as Influenced by Injection Method, Soil, and Slurry Properties

摘要: The distribution of moisture, degradable C, and N after direct injection slurry can affect the turnover plant availability N. This study examined effects method, soil conditions, properties on infiltration several components under practical conditions. water retention capacity 22 pig cattle slurries was quantified by dialysis at -0.016, -0.047, -0.100 MPa. All followed relationship: relative loss = 1/(1 + aVS[volatile solids]), indicating that liquids in zone be predicted from VS potential. Two-disc harrow tine were simulated (no applied) five trials. Two trials indicated disc resulted higher permeability compared with injection. In a separate experiment, moisture dissolved ions monitored around slits amended or slurry. Moisture gradients, which recorded small printed-circuit-board (PCB) time-domain-reflectometry (TDR) probes, temporally stable reestablished following rainfall. Slit sections containing 13 C-acetate 15 N-ammonium showed shift C to ratio within 24 h, explained removal and/or NH 4 . Cattle more concentrated slit than slurry, greater contact between obtained heterogeneity should accounted for models describing turnover.