Observations (1) Observations (1) Event history analysis (1) Water (1) Value (1) Time (1) Tablecloths (1) Seepage (1) Oral examinations (1) Nature (1) Motion (1) Mechanics (1) Hydraulics (1) Histosols (1) Hand (1) Future life (1) Drainage (1) Demonstrations (1) Critics (1) Compacting (1) Technique (1) Materials (1) Soils (1) Roots (1) Permeability (1) Quality (1) Training of (1) Infiltración (1) Raíces (Botánica) (1) Valor (Economía) (1)