KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
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Effects of Tillage and Fertilizers on Growth Characteristics and Yield of Soybean

무경운 콩 재배를 위한 유기질 비료와 화학비료의 적정 시비법

  • Jung, Hyun-Jin (Department of Crop Science, Chungbuk National University) ;
  • Park, Hyung-Jun (Department of Crop Science, Chungbuk National University) ;
  • Kwon, Soo-Jeong (Department of Crop Science, Chungbuk National University) ;
  • Yoo, Jin (Department of Environmental & Biological Chemistry, Chungbuk National University) ;
  • Kim, Suk-Jin (National Institute of Crop Science, RDA) ;
  • Chung, Keun-Yook (Department of Environmental & Biological Chemistry, Chungbuk National University) ;
  • Kim, Hong-Sig (Department of Crop Science, Chungbuk National University) ;
  • Woo, Sun-Hee (Department of Crop Science, Chungbuk National University)
  • 정현진 (충북대학교 식물자원학과) ;
  • 박형준 (충북대학교 식물자원학과) ;
  • 권수정 (충북대학교 식물자원학과) ;
  • 유진 (충북대학교 환경생명화학과) ;
  • 김숙진 (국립식량과학원 중부작물부) ;
  • 정근욱 (충북대학교 환경생명화학과) ;
  • 김홍식 (충북대학교 식물자원학과) ;
  • 우선희 (충북대학교 식물자원학과)
  • Received : 2016.10.28
  • Accepted : 2016.11.28
  • Published : 2016.12.31
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Abstract

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.

본 연구는 무경운 재배법에 알맞은 비료종류 및 시비방법을 확립하고자 수행되었다. 주요 결과는 아래와 같다. 1. 지중관수를 이용한 시비가 관행시비 처리보다 경장, 경직경 및 협수가 높았으며 각 처리구별 개화시기를 비교시 관행시비 화학비료 처리구에서 7월 28일로 개화시기가 가장 빨랐다. 성숙기 생육특징과 개화시기를 비교해보면 지중관수를 이용한 시비방법이 작물의 생장에 효과적이었다. 2. 질소 이용량은 지중관수와 관행시비 간의 효율을 비교 시 지중관수를 이용한 시비가 관행시비에 비해 질소의 흡수가 월등히 많음을 알 수 있었다. 3. 인의 흡수량은 지중관수, 관행시비 모두 가축비료 시비보다 화학비료 시비에서 많은 양의 인이 흡수되었으며, 질소가 지중관수 시에 높게 흡수되는 것과는 달리 관행시비 시에 인이 높게 흡수되었다. 4. 원자흡광분석법을 통하여 각 시비방법, 비료종류별 칼리의 흡수량을 조사한 결과 인의 흡수량과 비슷한 양상을 보였으며, 지중관수, 관행시비 처리구 모두 가축비료에서 칼리의 흡수가 이루어지지 않았다. 5. 수확 후 수량을 비교한 결과 지중관수를 이용 할 때는 가축비료와 화학비료간의 유의성은 존재하지 않지만, 관행시비를 이용한 가축비료와 화학비료 시비에는 유의차가 있는 수준에서 수량이 감소하였다.

Keywords

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