01020nam a2200241 a 450000100080000000500110000800800410001902000180006010000170007824500730009526000260016830000100019449000270020450000210023152003830025265300400063570000170067570000280069270000150072070000150073570000140075070000140076416303722019-07-16       2008    bl uuuu      00u1 u    #d  a97819215312621 aUNKOVICH, M.  aMeasuring plant-associate nitrogen fixation in agricultural systems.  aCanberra: ACIARc2008  c240p.  a(ACIAR Monograph, 136)  aPARCERIA:  ACIAR  aBiological nitrogen fixation. Why, when an how to measure nitrogen fixation. Analysis of nitrogen. Nitrogen Balance Method. Nitrogen Difference method. Ureide (N solute) metode. N-isotopic methods. N-abundance method. N isotopic ditution method. prcaution whenquantifying N2 fixation associated with no-nodulatin plants (associative N2 fixation). Assays of nitrogenase activity.  aFixação biológica de nitrogênio1 aHERRIDGE, D.1 aPEOPLES, M. CADISCH, G.1 aBODDEY, R.1 aGILLER, K.1 aALVES, B.1 aCHALK, P.