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논문 기본 정보

자료유형
학술저널
저자정보
Cho-Rong Lee (Rural Development Administration) Yura Oh (Rural Development Administration) Jung A Jung (Rural Development Administration) Sang-Min Lee (Rural Development Administration) Nan-Hee An (Rural Development Administration)
저널정보
한국토양비료학회 한국토양비료학회지 한국토양비료학회지 제53권 제4호
발행연도
2020.11
수록면
538 - 548 (11page)

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초록· 키워드

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Nitrogen (N) supply from organic materials (OM) takes more time than chemical fertilizer (CF), because mineralization of organic N requires microbial conversion. Most organic N applied to soil remains into SOM. It might have a greater residual effect than CF on soil fertility and crop nutrient uptake and influence on N fate. Residual organic N might have influence on soil fertility and nutrient uptake of crop by depending on N cycling in soil. This study investigated the residual effect of <SUP>15</SUP>N-labeled organic materials on Chinese cabbage N uptake and soil N. <SUP>15</SUP>N-labeled organic materials at rate of 456 ㎏ N/ha applied with green manure (GM), livestock compost (LC), GM+LC, oil cake (OC), and CF into wagner pot (1/2000a) for Chinese cabbage cultivation. During continuous crop cultivation (Sep. 2018 to Mar, 2020), <SUP>15</SUP>N-labeled Chinese cabbage and soil was analyzed by using stable isotope elemental analyzer. Organic materials and chemical fertilizer were higher N uptake in Chinese cabbage than in the control at first cropping season. However, N uptake of Chinese cabbage under continuous cultivation was significantly increased 35-72% at organic material treatments compared to the control. Also, <SUP>15</SUP>N-labeled soil was significantly high at the treatments applied with GM, LC, and GM+LC, but was not at OC and CF treatment. In conclusion, organic materials (especially GM, LC, and GM+LC) had a greater N residual effect on Chinese cabbage and soil than chemical fertilizer.

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ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusions
References

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