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Temporary Biological N Cońservation by Winter Oilseed Turnip (Brassica RapaL.) and its Influence on Following Crops and N-Percolation

 

作者: W. Merbach,   A. Wurbs,   H.J. Jacob,   C. Latus,  

 

期刊: Isotopes in Environmental and Health Studies  （Taylor Available online 1997）
卷期: Volume 33, issue 1-2  

页码: 39-43

 

ISSN:1025-6016

 

年代: 1997

 

DOI:10.1080/10256019808036357

 

出版商: Taylor & Francis Group

 

关键词: Biological nitrogen conservation;Brassica rapaL.;catch crops;field trials;nitrogen 15;soil layers;soil nitrogen percolation

 

数据来源: Taylor

 

摘要:

As shown in field plot trials with application of15N on loamy sand (albic luvisol), winter oilseed turnip (Brassica rapaL.; ssp.oleifera(Dc.) METZG.) incorporated considerable N amounts during the winter period. By this a reduction of N percolation into deeper soil layers was achieved. After mulching, about 30% of the catch crop N was taken up by the following crop, maize (Zea maysL., cv. ‘BEKENOVA’). Maize covered 11% of its total N demand deriving from the catch crop.

 

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