PEDOGENESIS AND SOIL CLASSIFICATION OF AN EXPERIMENTAL FARM IN MOSSORÓ, STATE OF RIO GRANDE DO NORTE, BRAZIL

LUNARA GLEIKA DA SILVA RÊGO; CAROLINA MALALA MARTINS; EULENE FRANCISCO DA SILVA; JÉSSIA JULIANA ALVES DA SILVA; REBECA NAIRONY DA SILVA LIMA

PEDOGENESIS AND SOIL CLASSIFICATION OF AN EXPERIMENTAL FARM IN MOSSORÓ, STATE OF RIO GRANDE DO NORTE, BRAZIL

2016

LUNARA GLEIKA DA SILVA RÊGO | CAROLINA MALALA MARTINS | EULENE FRANCISCO DA SILVA | JÉSSIA JULIANA ALVES DA SILVA | REBECA NAIRONY DA SILVA LIMA

The Rafael Fernandes experimental farm is located in the Alagoinha district, northwest of Mossoró, State of Rio Grande do Norte, Brazil, over two pedogenic formations of different edaphic characteristics, thus needing a more detailed description of its soil types, since this area hosts several experimental fields for researches on agriculture. The objective of this work was to characterize the morphological, physical, chemical and mineralogical features of the most representative soils of this farm, in order to understand its pedogenesis and define its classifications. The whole area was surveyed in order to assess its more representative pedogenic formations. Three soil profiles were classified and described, from which samples were collected in all horizons for physical, chemical and mineralogical analysis. The parent materials and the relief were the determining factors for pedogenic processes of desilication, podzolization and laterization, generating the three main soil types of the area, which were classified up to the 4 th categorical level and described as: Typic Rhodustults (P1), Rhodic Haplustox (P2) and Typic Plinthustalfs (P3).

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