Fauna edáfica de um latossolo vermelho amarelo sob efeito do glifosato no cerrado baiano

Abstract

With the urban expansion and the growth of the market possibilities consumers expanded the Brazilian agribusiness thus raising its level of production making agricultural production simpler. With this, it provided an intensification of the use of the soil, increase of the use of fertilizers and agrochemicals, among other technologies, aiming at greater agricultural and financial income. In terms of soil quality, there are several organisms that have a direct relationship with the same and with the plant, such as populations of the mesofauna and the soil microbiota being responsible for the processes of decomposition and mineralization of organic matter, regulation of nutrient cycles, as well as in soil-plant interaction. Thus, the set of these organisms acts as decomposer of the organic matter present in the soil. The use of the soil by monoculture facilitates the use of agricultural implements, such as agrochemicals triggering several negative impacts to the soil surface, such as reduction of infiltration rate and erosion processes. The use of agrochemicals in these areas has harmful consequences for the environment such as surface and groundwater pollution, soil pollution and impact on the diversity of organisms. The objective of this study was to verify the effects of Glyphosate herbicide under soil fauna and soil quality on maize production in a Red-Yellow Latosol in the cerrado of Bahia. The study was carried out in the city of Formosa do Rio Preto (Bahia), in an experiment set up in the CETEP area, annex Formosa do Rio Preto. Under the class of Red-Yellow Latosols, typical of the cerrado. The herbicide used in the experiment was Glyphosate Atar 48. For the study, four plots were delimited for the implementation of the experiment. With the results of the study, it was verified that glyphosate causes alterations both in the edaphic fauna when dealing with quantity, and in the germination and development of the corn, since when the herbicide was applied in different dosages, the diversity of the fauna groups decreased quantitatively as well in plants where it affected their growth