Impact of Irrigation on the Yield, Total Cost, and Its Influence on Hydraulic Conductivity in a Soil Under Vinasse Application

This study had the objective to evaluate effect of irrigation and fertigation (N) in crop yield its impact on total cost, addition influence conductivity hydraulic capacity logarithmic an Oxisol under vinasse application cultivated with sugarcane (second year), state Goiás, Brazil. The experimental design comprised randomized blocks a 5 × 2 factorial scheme, four replications. Treatments consisted five levels water replacement (100, 75, 50, 25 0%), without fertirrigation (N). planting sugarcane, cultivar RB85-5453, was performed double row (W-shaped), 8 m long, 1.80 spacing between rows, distance crops 0.40 m, area 52.8 m2 each paddock. For treatments water, (WR) drip tube placed ground at depth 0.20 among furrows row. (DRIPNET PC 16150) thin wall, 1.0 bar pressure, nominal discharge L h-1, 0.50 drippers. Nitrogen applied by dose 100 Kg ha-1, 30-day intervals, 10 applications throughout development culture. Potassium fertilization fully realized planting. cost did not increase significantly (< 3%) application.