Nitrogen uptake from 15N-enriched fertilizer by four tree crops in an Amazonian agroforest

@article{Dinkelmeyer2004NitrogenUF,
  title={Nitrogen uptake from 15N-enriched fertilizer by four tree crops in an Amazonian agroforest},
  author={Harald Dinkelmeyer and Johannes Lehmann and Andreas Renck and Lucerina Trujillo and Jos{\'e} E. Pereira da Silva and Gerhard Gebauer and Klaus Kaiser},
  journal={Agroforestry Systems},
  year={2004},
  volume={57},
  pages={213-224}
}
Mixed tree cropping systems have been proposed for sustainable nutrient management in the humid tropics. Yet, the nutrient interactions between intercropped trees have not been addressed sufficiently. In the present study we compare the temporal and spatial patterns of the uptake of applied 15N by four different tree crops in a mixed tree cropping system on a Xanthic Ferralsol in central Amazônia, Brazil, during one year. Most of the N uptake occurred during the first two weeks. Very little N… CONTINUE READING