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Subsurface drainage at the Manicoba irrigation project: design criteria and performance

Pesquisa Agropecuaria Brasileira 23(4): 405-413

Subsurface drainage at the Manicoba irrigation project: design criteria and performance

The applicability of drain spacing equations, some soil hydrological parameters and design criteria were studied in a 1.5 ha parallel subsurface pipe drainage system at Manicoba. The calculation of drain spacing (L) was based on parameters determined in situ and on the use of Hooghoudt and Glover-Dumm equations. Depth of the water table and rain discharges in response to recharge (surface irrigation or rainfall) were registered for L=15 m and L=30 m. Soil moisture was also monitored.

Accession: 001959570

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