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농가실천 친환경 벼재배 논의 토양특성 및 시비추천량

Establishment on Fertilizer Recommendation and Soil Characteristics of Rice Paddy with Environment-friendly Cultivation

  • 양창휴 (국립식량과학원 벼맥류부) ;
  • 안승현 (국립식량과학원 바이오에너지작물센터) ;
  • 김택겸 (국립식량과학원 벼맥류부) ;
  • 김선 (국립식량과학원 벼맥류부) ;
  • 백남현 (국립식량과학원 벼맥류부) ;
  • 최원영 (국립식량과학원 벼맥류부) ;
  • 이장희 (국립식량과학원 벼맥류부) ;
  • 정재혁 (국립식량과학원 벼맥류부) ;
  • 김시주 (국립식량과학원 벼맥류부)
  • 투고 : 2011.03.16
  • 심사 : 2011.06.14
  • 발행 : 2011.06.30

초록

친환경농업은 합성농약, 화학비료 등 화학 투입제의 사용을 최대한 줄이고 자원의 재활용을 가능케 하여 지역자원과 환경을 보전하면서 장기적으로 일정한 생산성과 수익성을 확보하고 안전한 식품을 생산하는 것이다. 본 연구는 호남지역 친환경 농업지구 논 토양의 환경특성을 조사하여 토양관리 기준을 설정코자 2007년도에 충남, 전북, 전남지역에서 쌀겨농법 2지구, 쌀겨+왕우렁이농법 8지구, 왕우렁이농법 5지구, 오리농법 3지구로 총 18지구를 선정하여 친환경 농법별 토양화학성을 분석하고 농가설문 및 토양물리성을 조사하였다. 친환경농업지구의 토양물리성중 토양경도는 관행농법보다 낮았으며 특히 쌀겨를 시용한 농법의 토양경도가 다른 친환경농법 보다 약간 낮았다. 또한 친환경농업지구의 토양화학성 중 유효인산과 유효규산 함량은 적정수준보다 약간 낮았으며 친환경농법 중 쌀겨를 시용한 농법의 유효인산과 유효규산 함량은 다른 친환경농법 보다 약간 낮았다. 작물별 시비처방 기준에 따라 토양 양분 부족분에 대한 시비량 ($N-P_2O_5-K_2O$)을 계산한 결과 쌀겨농법에서는 $83-49-30kg\;ha^{-1}$, 쌀겨+왕우렁이 농법 $77-48-30kg\;ha^{-1}$, 왕우렁이농법 $84-42-33kg\;ha^{-1}$, 오리농법 $86-36-34kg\;ha^{-1}$로 나타났다.

Environment-friendly agriculture (EFA) are aimed to reduce use of chemical inputs as possible the recycling of resources and the environment while preserving the local resources in the long term to ensure a constant productivity and profitability for producing safe food. This study was conducted to investigate characteristics on soil environment at paddy field of environment-friendly agriculture regions (EFARs) in Honam area. Survey point of EFARs Chungnam, Jeonbuk and Jeonnam, rice bran farming method in two districts, rice bran + snail farming method in eight districts, snail farming method in five districts and ducks farming method in three districts a total of 18 districts were selected. Annual of farming method, friendly-environment certification, amount of applied fertilizer, and history of cultivation to the farm household were surveyed. The content of available phosphate and silicate among the soil chemical properties in EFA paddy field were a little lower than optimum level, and those of agricultural methods fertilized with rice bran were a little lower than those of others. Hardness among the soil physical properties in EFA paddy field were a little lower than conventional practices, and that of agricultural methods fertilized with rice bran were a little lower than those of others. We showed fertilizer recommendation dose about soil nutritional shortages according to fertilization prescriptions index by crops.

키워드

참고문헌

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피인용 문헌

  1. An Investigation on the Environmental Factors of Certified Organic and Non-pesticide Paddy Soils Cultivating Rice at Goseong-Gun vol.24, pp.4, 2014, https://doi.org/10.5352/JLS.2014.24.4.403