The Effect of Tillage Methods after Application of Liquid Pig Manure on Silage Barley Growth and Soil Environment in Paddy Field

돈분액비 시용 논에서 경운방법이 청보리 생육 및 토양환경에 미치는 영향

  • 양창휴 (농촌진흥청 작물과학원 호남농업연구소) ;
  • 이상복 (농촌진흥청 작물과학원 호남농업연구소) ;
  • 김택겸 (농촌진흥청 작물과학원 호남농업연구소) ;
  • 유진희 (농촌진흥청 작물과학원 호남농업연구소) ;
  • 류철현 (농촌진흥청 작물과학원 호남농업연구소) ;
  • 이정준 (농촌진흥청 작물과학원 호남농업연구소) ;
  • 김재덕 (농촌진흥청 작물과학원 호남농업연구소) ;
  • 정광용 (국립환경과학원)
  • Received : 2008.08.04
  • Accepted : 2008.09.30
  • Published : 2008.10.30


To investigate the effect of tillage methods on the silage barely growth and the soil environment in paddy field, liquid pig manure(LPM) was applied after harvesting rice at Jisan series soil for 2 years. Five plots, a LPM applied rate as N%; 0, 100, 150, 200(basal dressing) and 100(basal dressing)+50(additional fertilizer) were divided by tillage methods; non-tillage, non-tillage+rice straw and rotary tillage method. Emission amounts of $NH_3$ gas highly decreased in the rotary tillage and the non-tillage+rice straw plot compared to non-tillage plot. The contents of soil organic matter and exchangeable cation were increased in the applied LPM plot. $NH_4-N$ and $NO_3-N$ contents in soil were the highest in the non-tillage+rice straw plot and followed by the rotary tillage and highly decreased along with the growth of plant. Run-off rate of mineral components were higher in order of the rotary tillage plot£æthe non-tillage plot£æthe non-tillage+rice straw plot and then leached to $SO_4$, $NO_3-N$, K plentifully. The yield of silage barley in dry weight was higher in order of the non-tillage+rice straw plot>the rotary tillage plot>the non-tillage plot. To estimate the feed value of silage barley, crude protein, acid detergent fiber(ADF) and neutral detergent fiber(NDF) contents were analyzed. Crude protein and ADF contents were the highest at rotary tillage N150% plot as 9.7 and 29.4%, respectively. NDF contents was the highest at non-tillage+rice straw N150% plot as 56.7%. In conclusion, we recommend not to incinerate rice straw and to apply LPM at non-tillage status in cultivating the silage barley. This may prevent water pollution and increase barley yields.


Tillage method;Liquid Pig manure;Silage barley;Soil environment


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