Pedosphere 23(6): 835--843, 2013
ISSN 1002-0160/CN 32-1315/P
©2013 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Natural 15N abundance in winter wheat amended with urea and compost: A long-term experiment |
ZHOU Wei1,2, HU Chun-Sheng1 , LI Ji3, P. CHRISTIE3,4, HE Xin-Hua5 and JU Xiao-Tang3 |
1Key Laboratory of Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021 (China)
2University of Chinese Academy of Sciences, Beijing 100049 (China)
3College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193 (China)
4Agri-Environment Branch, Agri-Food and Biosciences Institute, Belfast BT9 5PX (UK)
5Northern Research Station, USDA Forest Service, Houghton, MI 49931 (USA) |
| ABSTRACT |
| We investigated 15N abundance (δ15N) of winter wheat (Triticum aestivum cv. Jinmai 1) plants and soil at different growth stages in a field with a 13-year fertilization history of urea and compost, to determine whether or not the δ15N of plant parts can be used as an indicator of organic amendment with compost. Plant parts (roots, leaves, stems and grains) and soil were sampled at re-greening, jointing, grain filling and mature growth stages of winter wheat. There were significant differences between the urea and compost treatments in δ15N of whole plants, plant parts and soil over the whole growing season. Determination of the δ15N of plant parts was more convenient than that of whole plant to distinguish between the application of organic amendment and synthetic N fertilizer. |
| Key Words: detection, growth stages, natural δ15N, organic food, tissue |
| Citation: Zhou, W., Hu, C. S., Li, J., Christie, P., He, X. H. and Ju, X. T. 2013. Natural 15N abundance in winter wheat amended with urea and compost: A long-term experiment. Pedosphere. 23(6): 835-843. |
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