Variation in the relative participation of the nutrients accumulated by common bean (Phascelus vulgaris l.) in an oxisol and an alfisol, due to the compaction

Abstract

The relative analitical absorption data of the macro and micronutrients, in the dry matter of common bean, cropped in soil of an Oxisol and an Alfisol, confined in 3,8 liter pots, were analised in relation to the comportamentaltendency due to the compaction levels of the soils, and further compared to the disponible absolute values. It could be verified a general tendency in increase the accumulation of Mg, Ca and Fe, and decrease of K by the shoots, and increase of the extraction of Mg, Ca and K, and of decrease of N by the roots. It could be observed a differential behavior between the relative and absolute data, principally of the roots, occurring inclusive an inversion of the general tendency of K, Ca and Fe. With the finality to compare the behavior between the different nutrients, the relative data seem to be the more apropriate ones, when all essential nutrients are considered.