지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
Nitrogen added to farmland is used to plants or remains in soil, or is lost to environment. We incorporated <SUP>15</SUP>N-labeled materials (Chemical fertilizer (CF), green manure (GM), livestock compost (LC), GM+LC, and oil cake (OC) to soil and cultivated Chinese cabbages (Brassica rapa subsp. pekinensis) and analyzed the <SUP>15</SUP>N recovery of crop and soil to investigate the fate of nitrogen. The results follow. The <SUP>15</SUP>N<SUB>crop</SUB> recovery of chemical fertilizer (CF) was the highest, and that of organic materials differed by type. The <SUP>15</SUP>N<SUB>soil</SUB> recovery of CF was the lowest, and that of organic materials was 3 - 6 times higher than CF. The <SUP>15</SUP>N<SUB>loss</SUB> was not significantly difference between CF and organic materials (except GM+LC). As results, despite of the same amount of nitrogen input, there was the difference in plant uptake and soil residue between organic materials and CF. Nitrogen of CF is used to Chinese cabbages more than organic materials, however most of the remaining nitrogen is estimated to be lost to the environment. Therefore, CF might be hard to occur residual effect in the next cropping season. In organic materials, nitrogen is less used to Chinese cabbages than CF, but remains in soil more than CF. Therefore, organic materials might be useful for improving soil fertility and have a residual effect in the next cropping season. We suggest that these properties of organic materials should be taken into account in calculating the amount of applied fertilizer in organic farming where mainly organic materials are used. Moreover, it is necessary to investigate the cumulative and residual effects of continuous input of the same organic materials.
목차
ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusions
References
참고문헌 (32)
참고문헌 신청
Amato, M., J. Ladd, A. Ellington, G. Ford, J. Mahoney, A. Taylor, and D. Walsgott, 1987. Decomposition of plant material in Australian soils. IV. Decomposition in situ of 14C labeled and 15N labeled legume and wheat materials in a range of southern Australian soils. Soil Research. 25(1):95-105.
Bosshard, C., P. Sorensen, E. Frossard, D. Dubois, P. Mader, S. Nanzer, and A. Oberson, 2009. Nitrogen use efficiency of 15N-labelled sheep manure and mineral fertilizer applied to microplots in long-term organic and conventional cropping system. Nutr. Cycl. Agroecosyst. 83:271-287.
Carpenter, S.R., N.F. Caraco, D.L. Correll, R.W. Howarth, A.N. Sharpley, and V.H. Smith, 1998. Nonpoint pollution of surface waters with phosphorus and nitrogen. Ecological applications. 8(3):559-568.
Cassman, K.G., A. Dobermann, and D.T. Walters, 2002. Agroecosystems, nitrogen-use efficiency, and nitrogen management. AMBIO: A Journal of the Human Environment. 31(2):132-141.
Dittert, K., T. Goerges, and B. Sattelmacher, 1998. Nitrogen turnover in soil after application of animal manure and slurry as studied by the stable isotope 15N: A review. Zeitschrift fur Pflanzenernahrung und Bodenkunde. 161(4): 453-463.
Bosshard, C., P. Sorensen, E. Frossard, D. Dubois, P. Mader, S. Nanzer, and A. Oberson, 2009. Nitrogen use efficiency of 15N-labelled sheep manure and mineral fertilizer applied to microplots in long-term organic and conventional cropping system. Nutr. Cycl. Agroecosyst. 83:271-287.
Carpenter, S.R., N.F. Caraco, D.L. Correll, R.W. Howarth, A.N. Sharpley, and V.H. Smith, 1998. Nonpoint pollution of surface waters with phosphorus and nitrogen. Ecological applications. 8(3):559-568.
Cassman, K.G., A. Dobermann, and D.T. Walters, 2002. Agroecosystems, nitrogen-use efficiency, and nitrogen management. AMBIO: A Journal of the Human Environment. 31(2):132-141.
Dittert, K., T. Goerges, and B. Sattelmacher, 1998. Nitrogen turnover in soil after application of animal manure and slurry as studied by the stable isotope 15N: A review. Zeitschrift fur Pflanzenernahrung und Bodenkunde. 161(4): 453-463.
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UCI(KEPA) : I410-ECN-0101-2020-523-000451652