Efficacy of three 15N labelling techniques for estimating below-ground N in Sesbania rostrata

Abstract

Three 15N labelling strategies for estimating below-ground N in Sesbania rostrata grown in pots under flooded conditions were examined. The estimated proportions of total plant N resident below-ground were 13% (stem injection), 42% (leaf immersion) and 56% (adventitious root feeding). The average estimate based on leaf and root immersion (49%) was considered to be realistic on the basis of published literature with other foliar labelled legumes, while root and root-derived N appeared to be underestimated by stem injection.

DOI: 10.1007/s00374-002-0460-x

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Cite this paper

@article{Chalk2002EfficacyOT, title={Efficacy of three 15N labelling techniques for estimating below-ground N in Sesbania rostrata}, author={P C Chalk and Jagdish Kumar Ladha and Agnes Tirol Padre}, journal={Biology and Fertility of Soils}, year={2002}, volume={35}, pages={387-389} }