The present study was conducted to establish the optimal fertilization type and method for no-tillage during the first year of No-tillage (NT) and Conventional-tillage (CT) practices for soybean, using different types of fertilizers. In this experiment, the culm length and stalk diameter showed a greater response to fertilization with surface irrigation than to conventional fertilization. The fastest flowering period (July 28) occurred using chemical fertilization applied via subsurface irrigation. Comparing maturation based on growth characteristics and flowering date revealed that fertilization with subsurface irrigation was more effective for the growth of crops than other methods. Regarding yield, there was no significant difference between livestock and chemical fertilizers in subsurface irrigation, but there were significant differences between these fertilizers when using conventional fertilization methods. Based on the results, livestock fertilizer with subsurface irrigation effectively enhanced crop quantity. Nitrogen absorption of plants using subsurface irrigation was more effective than that using conventional fertilization. Regarding phosphorus absorption of plants, chemical fertilizers showed higher absorption than did livestock fertilizers for both subsurface irrigation and conventional fertilization. Unlike nitrogen, phosphorus was highly absorbed using conventional fertilization. Absorption of phosphorus and potassium were similar but phosphorus was not absorbed using livestock fertilizers applied either using subsurface irrigation or with conventional fertilization.

재료 및 방법
  공시재료 및 처리내용
  조사항목
 결과 및 고찰
  성숙기 생육특성 및 개화시기
  식물체의 영양분 흡수 및 비료성분 가용량
  수량 구성요소
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 인용문헌(REFERENCES)

• 정현진(충북대학교 식물자원학과) | Hyun-Jin Jung
• 박형준(충북대학교 식물자원학과) | Hyung-Jun Park
• 권수정(충북대학교 식물자원학과) | Soo-Jeong Kwon
• 유진(충북대학교 환경생명화학과) | Jin Yoo
• 김숙진(국립식량과학원 중부작물부) | Suk-Jin Kim
• 정근욱(충북대학교 환경생명화학과) | Keun-Yook Chung
• 김홍식(충북대학교 식물자원학과) | Hong-Sig Kim
• 우선희(충북대학교 식물자원학과) | Sun-Hee Woo Corresponding author