Resposta do feijoeiro irrigado sob diferentes tensões de água no solo

Abstract

Water is one of the coefficients that limits the yield of plants. When the cultivations are conducted in protected environment, this parameter reflects in greater importance, because the water supply happens exclusively through irrigation. The management of the irrigation system is a part that contributes significantly to the achievement of quality products, avoiding sheet in water excess or deficit. The soil management through tensiometers has been widely used, however, the recommendation of critical strain, happens widely for different regions, and for the region of Alegrete – RS this is non-existent. The experiment was realized out from March to May 2017 in protected environment of the experimental area of the Federal University of Pampa, Alegrete Campus. The objective of the proposal was to get responses of the behavior of the bean pod under different soil water strains. Irrigation management was realized out for tensiometers defining when to irrigate. The strains readings tested were 30KPa, 40KPa, 50KPa, 60KPa and 70KPa. The applied water sheet was through on evapotranspiration of the cultivation. The parameters evaluated were growth and final production. The results were submitted to analysis of variance and Test F, and the means compared to each other by Tuckey at the level of 5% error probability. The results were presented through graphs and tables. It was concluded that the recommended strain for the Alegrete – RS region in the bean pod cultivation is represented by the strain of 30KPa.