00823naa a2200193 a 450000100080000000500110000800800410001902400490006010000160010924500970012526000090022252002580023165300170048970000270050670000160053370000160054970000200056577300440058521195742020-01-29       2000    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1023/A:10265801279652DOI1 aLEHMANN, J.  aNitrogen use in mixed tree crop plantations with a legume cover crop.h[electronic resource]  c2000  aIn this study, we addressed the following questions: (i) What is the area from where trees take up their N in a mixed cropping system with a legume cover crop? and (ii) How important is the legume cover crop for the N cycle of the whole cropping system?  aAgrofloresta1 aSILVA JUNIOR, J. P. da1 aSCHROTH, G.1 aGEBAUER, G.1 aSILVA, L. F. da  tPlant and Soilgv. 225, p. 63-72, 2000.