Chemical characteristics of Soils Cultivated by the Conventional Farming, Greenhouse Cultivation and Organic Farming and Accumulation of $NO_3^-$ in Chinese Cabbage and Lettuce
(관행농법, 시설재배 및 유기농법 재배지 토양의 화학적 특성과 배추, 상추의 $NO_3^-$ 집적량 차이)
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- Korean Journal of Organic Agriculture
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- v.5 no.1
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- pp.149-165
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- 1996