Field satured hydraulic conductivity estimation on vinasse trated soil

Acta Agronómica

Rojas D, Ludwig M¹  Menjívar Flórez, Juan Carlos¹  Rojas Palacio, Hernán¹ 

[1] Universidad Nacional de Colombia, Palmira

关键词: Point source method;    Simulation models;    Falling head method;    Irrigation;   

DOI  :  

学科分类：农业科学（综合）

来源: Universidad Nacional de Colombia * Facultad de Ciencias Agropecuarias Palmira

【 摘 要 】

Changes for soil satured hydraulic conductivity were estimated by using the “falling head” and “point source” methods. The soil type trated with vinasse was Ustipsamment Typic Sandy Isohipertermic located at Colombia National University experimental center (3° 25' 39.81" N, 76° 25' 45.70" W; 953 m.s.n.m., 24 °C, 60% HR. and 1020 mm.). The used field methods did not show statistical differences for the estimation of the satured hydraulic conductivity (p<0.05), however a decreasing exponential relationship between hydraulic conductivity and vinasse concentration was found. The hydraulic conductivity was reduced about of 50% from the initial value to 2° brix in sandy soil, 5.3° brix to sandy loam soil and 6.1° brix to clay loam.

【 授权许可】

CC BY-NC-SA