The rehearsal settled down in the I am founded of Zungarococha (Shop Agrostologico), where different dose of UREA was evaluated in the cultivation of Zea mayz, the design was experimental quantitative, the population conformed it 480 plants distributed in 12 beds of 10 m2 each a, to a density 0.50 x 0.50 between plants and arrays, to achieve the outlined objective the statistical design DBCA were used, being ended up concluding the doses of UREA used in the cultivation forrajero has excellent effect in the evaluated cultivation, like you they observe in them you averages of: T3 (4.80 kg/m2 MV and 1.11 kg/m2 MS), T2 (3.90 kg/2 MV and 0.90 KG/m2 MS), T1 (3.00 kg/m2 MV and 0.69 KG/m2 MS) and T0 with (2.60 kg/m2 MV and 0.60 KG/m2 of MS); with respect to the carbon the T3 accumulates until the 6ta week (0.44 g/m2), the T2 (0.36 g/m2), the T1 (0.28 g/m2) and the T0 with (0.24 g/m2). In the Eff...