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논문 기본 정보

자료유형
학술저널
저자정보
Sukjin Kim (Rural Development Administration) Jong-Seo Choi (Rural Development Administration) Shingu Kang (Rural Development Administration) Jeong-Hwa Park (Rural Development Administration) Sunha Hong (Rural Development Administration) Tae-su Kim (Daejung-golf Engineering CO., LTD) Woonho Yang (Rural Development Administration)
저널정보
한국토양비료학회 한국토양비료학회지 한국토양비료학회지 제50권 제6호
발행연도
2017.12
수록면
634 - 643 (10page)

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초록· 키워드

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No-tillage is an effective practice to save labor input and reduce methane emission from the paddy. Effects of tillage and cultivation methods on carbon accumulation and soil properties were investigated in the treatments of tillage-transplanting (T-T), tillage-wet hill seeding (T-WS), minimum tillage-dry seeding (MT-S) and no-tillage dry seeding (NT-S) of rice. Soil carbon was higher in NT-S and MT-S, compared to T-T and T-WS. In NT-S and MT-S, soil carbon contents were the highest in the top soil (5 cm depth) and decreased with soil depth. In T-T and T-WS, however soil carbon contents showed no significant difference up to soil depth of 15 cm from the top. Carbon content was the highest in the soil particle size under 106 μm and decreased as the soil particle size increased. Contents of water-stable aggregates in NT-S and MT-S were higher than those of T-T and T-WS. In NT-S and MT-S, contents of water-stable aggregates were the highest in the top soil and significantly decreased with soil depth while no significant difference up to the soil depth of 15 cm in T-T and T-WS. Available SiO2 contents in the top soil were the highest in NT-S and MT-S while the lowest in T-T and T-WS. It is concluded that minimum or no disturbance of soil in rice cultivation can increase carbon accumulation in the soil, especially in the top layer, and subsequently contribute to the formation of the water-stable soil aggregates.

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ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2018-523-001677437