한국축산시설환경학회지 (Journal of Animal Environmental Science)

한국축산환경학회 (The Korean Society of Animal Environmental Science & Technology)
권호 표지

논에서 우분액비시용이 총체 벼의 생산성, 사료가치 및 수질오염에 미치는 영향

Effect of Application of Cattle Slurry on Dry Matter Yield and Nutritive Value of Whole Crop Rice and Water Pollution in Rice Paddy Land

  • 최기춘 (농촌진흥청 국립축산과학원) ;
  • 나상필 (건국대학교 동물생명과학대학) ;
  • 정민웅 (농촌진흥청 국립축산과학원) ;
  • 임영철 (농촌진흥청 국립축산과학원) ;
  • 김맹중 (농촌진흥청 국립축산과학원) ;
  • 김명화 (건국대학교 동물생명과학대학) ;
  • 이상락 (건국대학교 동물생명과학대학) ;
  • 김다혜 (농촌진흥청 국립축산과학원) ;
  • 육완방 (건국대학교 동물생명과학대학)
  • 투고 : 2012.08.02
  • 심사 : 2012.11.05
  • 발행 : 2012.12.30
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초록

본 연구에서는 논에서의 조사료용 총체 벼 생산을 위해 우분액비의 시용효과를 규명하기 위하여 총체 벼 화학비료 시용구를 대조구로 하고 우분액비 시용구를 처리구로 하여 총체 벼 생육특성, 생산성 및 사료가치를 조사하였다. 그리고 처리구별 토양의 지력증진 효과를 분석함과 동시에 화학비료 및 우분액비의 시용에 따른 배출수와 용탈수의 $NO_3$-N, $NH_4$-N 및 $PO_4$-P 등을 분석하여 환경영향평가를 실시하고자 수행하였다. 본 연구는 2006년 5월부터 2009년 4월까지 3년 동안 전라북도 김제군 백산면 시험포장에서 완전임의배치 3반복으로 수행되었다. 화학비료 시용구의 총체 벼의 수량은 우분액비 시용구와 비슷한 수준을 보였다. 총체 벼의 조단백질 함량은 화학비료 시용구보다 우분액비 시용구에서 현저하게 증가하였으나 (p<0.05) NDF, ADF 및 TDN 함량은 처리구간에 큰 차이를 보이지 않았다. 우분액비시용에 따른 토양내 pH, $P_2O_5$, T-N, OM 농도는 시험 전에 비해 시험종료 후에 증가하는 경향을 나타냈다. 그리고 우분액비시용에 따른 토양내 Ca, Na, Mg 및 K 농도는 시험 전에 비해 시험종료 후에 현저하게 증가하는 경향을 나타냈다. 총체 벼 화학비료 시용구 및 우분액비 시용구에서 배출되는 성분중 $NO_3$-N 및 $NH_4$-N 농도는 2007년에 비하여 2008년에 현저하게 높은 경향을 보였으나 배출수중 $PO_3$-P 농도는 2년간 모두 비슷한 수준을 유지하였다. 그리고 처리구간에도 농도차이는 나타나지 않았다. 우분액비시용에 따른 용탈수중 $NO_3$-N, $NH_4N$ 및 $PO_4$-P의 농도는 큰 차이를 보여주지 않았다.

This study was conducted to investigate the effects of application of cattle slurry on forage productivity and environmental pollution in rice paddy land. Cropping systems used in this study consisted of two designs, such as whole crop rice applied with standard fertilizer (MWRS) and whole crop rice applied with cattle slurry (MWRC). The field experiments were conducted on the clay loam at Backsanmyun, Kimje, Chunlabukdo province in Korea for three years (May 2006 to Apr. 2009). This study was arranged in completely randomized design with three replicates. The yield of dry matter of whole crop rice in MWRS was similar as compared with that of MWRC. The contents of crude protein of whole crop rice in MWRS significantly increased as compared with those of MWRC (P<0.05). However, the contents of acid detergent fiber (ADF), neutral detergent fiber (NDF) and total digestible nutrients (TDN) of whole crop rice were hardly influenced by cattle slurry application. The pH, and contents of T-N, $P_2O_5$ and organic matter (OM) in soil samples collected at the end of the experiment increased as compared with those at the beginning of the experiment. After the end of experiment, the concentrations of exchangeable cations (Ca, Na, Mg and K) in soil samples collected at the end of the experiment were remarkably higher than those at the beginning of the experiment (P<0.05). The concentrations of $NO_3$-N and $NH_4$-N in discharge water in MWRS, MWRC and DWBRC were higher in 2008 than those in 2007. But the concentration of $PO_4$-P in discharge water was hardly influenced by the cropping system during experimental period. The concentrations of $NO_3$-N, $NH_4$-N and $PO_4$-P in leaching water were hardly influenced by application of cattle slurry.

키워드

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