Fertilization Efficiency of Livestock Faeces Composts as Compared to Chemical Fertilizers for Paddy Rice Cultivation

  • Kang, C.S. (Gyeonggi-do Agricultural Research & Extension Services) ;
  • Roh, A.S. (Gyeonggi-do Agricultural Research & Extension Services) ;
  • Kim, S.K. (Gyeonggi-do Agricultural Research & Extension Services)
  • Published : 2011.11.30

Abstract

Soil $NH_4$-N content became higher in proportion to the increase in the urea application rate, while in livestock faeces compost (LFC) plots, it became lower than in urea plots and had no significant difference statistically among LFC plots. There was a close relationship between phosphate fertilization rate and the increment of soil available phosphate content after experiment resulting y=0.1788x-6.169 ($R^2=0.9425$) when applied fused superphosphate fertilizer, and y=0.0662x-2.689 ($R^2=0.9315$) when applied LFCs by the same amounts of phosphate (x: phosphate application, kg $ha^{-1}$, y: increment in soil available phosphate content, mg $kg^{-1}$. Plant height, number of stems, nutrients uptake by rice and rice yield showed higher levels in N 100, 150% application plots of chemical fertilizers, while every LFC plots exhibited lower values and no significant difference among them. Relative nitrogen fertilization efficiencies of LFCs compared to urea was 12.3% for cattle faeces compost (CaFC), 8.8 for swine faeces compost (SwFC) and 24.6 for chicken faeces compost (ChFC), respectively.

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