장기 유기농 실천 토양의 화학적 특성
Soil Chemical Properties of Long-term Organic Cultivation Upland
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초록
To investigate the influence of long-term organic cultivation on soil characteristics, chemical properties of 35 soils in the national scale organically managed over 10 years were analyzed. 57% of soils which were managed by the materials containing livestock manure have higher nutrient concentration than the materials not containing livestock manure. The decomposed composts (containing livestock manure) had higher amount of P2O5, CaO, K2O than organic fertilizers (not containing livestock manure). In the results, the nutrient concentration of soils in long-term organically managed was higher than optimum range of upland soil, especially pH 6.9, available phosphorus (Av. P2O5) 744 mg/kg, exchangeable calcium 9.4 cmolc/kg, potassium 2.51 cmolc/kg. On the other hand, more than 50% of soils had lower concentration of exchangeable magnesium than optimum range (soil nutrient distribution was unbalanced). It is suggested that farmers have to be careful to apply organic materials, especially containing livestock manure.
Abstract
To investigate the influence of long-term organic cultivation on soil characteristics, chemical properties of 35 soils in the national scale organically managed over 10 years were analyzed. 57% of soils which were managed by the materials containing livestock manure have higher nutrient concentration than the materials not containing livestock manure. The decomposed composts (containing livestock manure) had higher amount of P2O5, CaO, K2O than organic fertilizers (not containing livestock manure). In the results, the nutrient concentration of soils in long-term organically managed was higher than optimum range of upland soil, especially pH 6.9, available phosphorus (Av. P2O5) 744 mg/kg, exchangeable calcium 9.4 cmolc/kg, potassium 2.51 cmolc/kg. On the other hand, more than 50% of soils had lower concentration of exchangeable magnesium than optimum range (soil nutrient distribution was unbalanced). It is suggested that farmers have to be careful to apply organic materials, especially containing livestock manure.
참고문헌 (12)
- 안지현, "축분종류에 따른 가축분퇴비의 화학성분 특성분석", 한국농공학회논문집, 55(2), pp.37~45 (2013), 한국농공학회
- 조현준, "유기농 밭토양의 물리화학적 특성", 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer), 42(2), pp.98~102 (2009), 한국토양비료학회
- 김갑철, "유기농 시설하우스 토양에서 유박 시용이 토양특성 및 다채 생육에 미치는 영향", 한국환경농학회지, 33(3), pp.149~154 (2014), 한국환경농학회[DOI]
- Kim, P. J., "Characteristics of phosphorus accumulation in organic farming fields", Kor. J. Soil Sci. Fert, 33, pp.234~241 (2000)
- KREI, "Domestic and Foreign Green of agricultural production and market outlook", ~ (2015)
- Lee, J. H., "Physicochemical properties of upland soils in jeonbuk area", Master, pp.2009
- 이용환, "국내 유기농재배지 유기물 시용실태 및 토양의 화학적 특성", 한국유기농업학회지, 14(1), pp.55~67 (2006), 한국유기농업학회
- 이윤정, "작물의 지속적인 유기 재배가 토양의 이화학적 특성변화에 미치는 영향", 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer), 37(4), pp.228~234 (2004), 한국토양비료학회
- MIFAFF, "Certificated amounts of environment-friendly agriculture products", ~ (2014)
- Annual report of the monitoring project on agro-environmental quality, "NAAS", RDA, ~ (2010)
- The method of soil and plant analysis, "NIAST", RDA, 29~131 (2000)
- Training Manual for Organic Agriculture in Korea, "RDA", RDA, 2~ (2013)