Abstract:In the effort to understand the mechanisms of enhanced soil acidification by legume plants, the effect of nitrate dose on proton release by the roots of faba-bean under medium pH conditions was analyzed in solution culture experiment and by automatic potentiometric titration at a constant pH. The results show that the roots of faba-bean release the largest amount of protons when no external nitrate source is available, inducing a drastic decline (1.93 units) in medium pH. The cumulative amount of released prot… Show more
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