01546naa a2200253 a 450000100080000000500110000800800410001910000210006024501570008126000090023852007200024765000150096765000150098265300240099765300260102165300210104765300250106865300230109365300190111670000220113570000330115770000200119077300820121010443622021-09-02 1998 bl uuuu u00u1 u #d1 aPIASENTIN, R. M. aStudy on the mineral extraction of legume and grass species from various soil types, by instrumental neutron activation analysis.h[electronic resource] c1998 aInstrumental neutron activation analysis (INAA), followed by gamma-ray spectrometry, was used to determine the concentration of K, Ca, Mg, Na, Zn, Fe, Mn, Mo, Co, Cr, La, Eu and Th in six species of legumes and three species of grasses. Each species of forage was cultivated on two different oxisols, that is, a red yellow Latossol and a dark red Latossol, with the aim of comparing the influence of the soils in the mineral extraction. Besides, on each kind of soil, two different limestone concentrations were used in order to verify how the soil pH correction could influence the elemental absorption in each species, and at the same time; to search for an optimum value of limestone concentration for each soil. asoil types aLeguminosa aactivation analysis aExtracao instrumental aExtracao mineral aInstrumental neutron aMineral extraction aTipos de solos1 aARMELIN, M. J. A.1 aPRIMAVESI, O. M. A. S. P. R.1 aCRUVINEL, P. E. tJournal of Radioanalytical and Nuclear chemistrygv.238, n.1-2, p.7-12, 1998.