Abstract:
Brazil has a great variety and characteristics of soil, which is due to the size and continental
proportions of the country. Oxisols, argisols and neosoils predominate. These soils are
characterized by their predominant characteristic of depth and highly weathered, thus bringing
the characteristics of being acidic, with low natural fertility and, in some cases, high aluminum
saturation in the profile. With these premises, the present study aimed to evaluate different
sources of boron applied to the soil to overcome these deficiencies found. The study was
conducted in the city of Campestre and used as boron sources: boric acid complexed with
monoethanolamine (treatment 1), boric acid complexed with organic protein (treatment 2),
ulexite (treatment 3), and boric acid (treatment 4), in addition, there was also the control without
the application of boron (treatment 5) and as dosage was applied 5 kg per hectare of boron. It
was conducted in randomized blocks with five replications and after 120 days of application, soil
samples were collected from each treatment and submitted for analysis in the laboratory and submitted to Scott-Knott averages with 5% probability. It was concluded that the application of
Boron complexed with Monoethanolamine resulted in better levels of nutrient availability to the
soil, but all sources of B used in the research promoted increments of the content of this element
in the soil. |
