Correlação entre precipitação e a produtividade agrícola nos municípios de Francisco Beltrão e Pato Branco, Paraná

Abstract

Agriculture is of great value to society mainly for food production, its impact on the economy and on the development of techniques that help preserve natural resources, however, it is very susceptible to climate vulnerability, which can positively or negatively impact grain production. Therefore, the present work sought to analyze how precipitation influenced the productivity of corn, soybean and wheat crops in the municipalities of Francisco Beltrão and Pato Branco, from 2012 to 2020. Climatological data were provided by SIMEPAR and IDR, and those of agricultural production with DERAL, through the analysis of extreme weather events such as dry and rainy months, there was interference in the average production of the grains studied, related to excess or lack of precipitation, even before the start of planting indicated by the agricultural calendar of crops. For all grains studied, there were harvests below and above the average productivity for the historical series analyzed, and in some cases, this factor happened in both municipalities. From the year 2014 to 2017, in Francisco Beltrão and Pato Branco, extreme precipitation events have become more common. Even with the appropriate agricultural calendar for the climate of the southwest region of Paraná, farmers are recommended to always be aware of the recommendations of the competent bodies for any change in the date of planting and harvesting, in order to avoid the loss of seeds due to water deficiency or soil erosion.