OLIVEIRA, C. R.; http://lattes.cnpq.br/1908500650215392; OLIVEIRA, Cícero Romão de.
Resumo:
The purpose of this work was to characterize the
soils of the Sume Irrigation Station with respect to
the ir physical and hydric properties; study diferent ways
of irrigation programming for corn, beans, tomato and cotton
and offer alternatives for the best irrigation water use
and management.
Four approach for irrigation programming were studied: irrigation for maximum yields, irrigation to obtain 80% of
the maximum yields, irrigation when 50% of the soil available
water for plants is used and irrigation with a fixed interval
of 4 days.
The results show that the studied soils are aluviais,
sandy loam, loam, and clay loam. High bulk density (1,64 to 3
1,76 g/cm) and medium and uniform porosity.
With respect to the irrigation programming for the
area of Sume, it is observed that the irrigation with a
fixed interval is the most recpmended because, besides obtaining high levels of productivity, it is adequaded to
the administrative conditions, technical level of the
farmers and dispense economical expenses for the acquisition of humidity monitoring equipments.
