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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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