Effect of the fertility level of two soils subjected to compaction on the behavior of the accumulation of dry matter and of nutrients by dry beans (Phaseolus Vulgaris L.)

Abstract

A greenhouse experiment were conduced with soil of the A horizon of an Oxisol (LR) and an Alfisol (PVp), confined in 3,8 liter pots, and cultivated with two bean cultivars, with and without fertilizer. The soil samples were subjected to compaction and mantained with a soil water tension between 100 to 300 mbars. The dry matter,wich normaly reduce the accumulation with the compaction level, had his behavior afected by the fertility level, but the intensity of accumulation afected by the soil type. Considering the absolute values of the elements accumulated, it could be verify that the fertility level afect the behavior of N, P, Ca , B, Cu and Fe, considering the shoots, and K, Mg and Zn considering the roots. The relative values inform that the fertility level only afect the behavior of Ca , Zn and B in the shoots and of Ca, Zn, B, Fe and Mn in the roots.