토양 비옥도가 상이한 조건에서 돈분 퇴비와 요소 비료의 배추에 대한 시비효과

국문 초록 (Abstract)

가축분퇴비 시용시 시비질소의 이용효율 증진 도모를 위한 기초자료를 얻고자 토양 비옥도가 다른 두 토양 (Soil-L와 Soil-H)에서 돈분 퇴비와 질소비료 (요소)의 혼용비율을 달리하여 포장조건에서 배추를 포트 재배시험을 실시하였다. 배추수량은 Soil-L에서는 시용질소를 전량 화학비료로 시비한 NPK 대비 돈분퇴비로 시용한 COM 100처리구에서 17% 감소한 반면, 화학비료 질소와 퇴비를 혼용한 3처리 (COM 70+N30, COM50+N50 및 COM30+N70)에서는 통계적 유의한 차이가 없었다. Soil-H에서는 NPK대비 COM100 처리구에서 23.6% 의 수량감소를 보였다. 배추의 질소흡수량은 두 토양 공히 NPK 처리구와 N70+ COM30 처리구에서 가장 많았다. 시비 질소에 대한 배추의 생산효율은 두 토양 모두 화학비료의 시비량이 증가함에 따라 증가되었다. 그리고 화학비료를 전량 시비한 NPK 처리구에서 두 토양의 질소 생산효율은 큰 차이를 보이지 않았지만, 질소 시비량을 전량 퇴비로 시용한 COM 100 처리구에서는 Soil-L에서 28.8 g g<SUP>-1</SUP>으로 Soil-H 16.2 g g<SUP>-1</SUP>보다 현저히 높았다.

다국어 초록 (Multilingual Abstract)

The influences of the different mixture of urea fertilizer and pig manure compost as a nitrogen (N) source on Chinese cabbage yield, N uptake, and N agronomic efficiency (AE) were evaluated in two soils having different soil fertility levels. Increasing urea application level was very effective to improve yield and N uptake of Chinese cabbage, and the highest yield was obtained by urea fertilization alone in two soils. On the other hand, the lowest yield and N uptake was obtained from compost alone application in two soils. There was no significant difference in terms of the nitrogen AE between low and high fertility soils that were fully applied with urea. The AE values of Chinese cabbage applied by compost alone were significantly higher in the soil having a low fertility (28.8 g g<SUP>-1</SUP>) than that in soil with high fertility (16.2 g g<SUP>-1</SUP>), suggesting that N in compost was more responsive in improving the yield of Chinese cabbage in low fertility soils.

목차 (Table of Contents)

• 서언
• 재료 및 방법
• 결과 및 고찰
• 요약
• 인용문헌

참고문헌 (Reference)

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