초록 |
This study was conducted to investigate the effects on chemical properties of soil and yield of chinese cabbage when the piggery liquid slurry (ADS) digested anaerobically in the biogas plant was sprinkled to the soils. Treatments were composed of non-nitrogen plot (PK), chemical fertilizer plot (NPK) and ADS plot, and were arranged by randomized block design with 3 replications. The ADS was an alkali (pH 8.6) fertilizer containing 0.55% of total nitrogen, optimal levels of phosphorus, potassium and other components. When based (100%) on the yield of chinese cabbage in the NPK, those of the ADS and the PK were 114% and 43%, respectively. The nitrogen absorption of chinese cabbage at 50-d after transplant was significantly greater (p |