Sebastião Leal and Uruçuí Piauí and their climatic oscillations on agricultural activities

The objective is to study the agroclimatic elements of Sebastião Leal and Uruçuí do Piauí between 1962-2018 in order to provide information and support to regional agriculture and its entrepreneurs. Rainfall data for the years 1963-2018 were provided by the Superintendence for the Development of the Northeast and the Rural Extension Company of Piauí. Estima – T, the other work data were interpolated from neighboring stations, generated the thermal data. With the climate changes that have been occurring worldwide, regionally and locally, it is worth building wind barriers in order to preserve the planted cultivars. With an increase in temperature of 1 °C and 4 °C and with a reduction in precipitation of 10% 20%, producers should work with super early seeds those are resistant to severe droughts. The low cloud cover between October and April, and with its thermal oscillation over normality, comes to register low fires and burnings, which cause low values ​​of insolation. In the months of January, the highest rates of insolation are registered, and these are linked to the region's meso and low-scale phenomena. The importance of insolation regionalization for the purposes of agricultural studies and energy generation is recognized. The municipalities Sebastião Leal and Uruçuí have available water, thermal indexes, humidity and insolation are the parameters that agriculture needs for its development. The meteorological elements studied can be applied or have resources of use for various types of grain that have been used in the study area. The temporal oscillations of long series, as worked on in this article, contributed to the recommendations of the places suitable for the seeding and grain planting system, warning about their respective preparation and planting periods and about possible climatic discontinuities.