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바이오가스 프랜트에서 혐기 소화시킨 돈사 Slurry의 화학적 특성 및 배추생육 시용효과에 관한 연구
정찬성,박정근,노안성,조웅기,이성실,문여황,Jeong, Chan-Seong,Bak, Jeong-Geun,Roh, Ahn-Sung,Cho, Woong-Gi,Lee, Sung-Sill,Moon, Yea-Hwang 한국축산환경학회 2014 한국축산시설환경학회지 Vol.20 No.3
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<0.05) in the ADS than other treatment. Heavy metal contents of soil were not difference between before and after experiment. With supplementing phosphorus and potassium sources in it, the ADS should be an excellent fertilizer in cabbage culture.